/* ============================
   Variables & Reset
============================ */
:root {
    /* Colors */
    --primary-color: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #7c8fec;
    --secondary-color: #f56565;
    --secondary-dark: #e53e3e;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --info-color: #4299e1;
    --danger-color: #f56565;
    
    /* Neutral Colors */
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --text-light: #a0aec0;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --border-color: #e2e8f0;
    
    /* Dark Mode Colors */
    --dark-bg-primary: #1a202c;
    --dark-bg-secondary: #2d3748;
    --dark-bg-tertiary: #4a5568;
    --dark-text-primary: #f7fafc;
    --dark-text-secondary: #cbd5e0;
    --dark-border-color: #4a5568;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Dark Mode Variables */
body.dark-mode {
    --text-primary: var(--dark-text-primary);
    --text-secondary: var(--dark-text-secondary);
    --bg-primary: var(--dark-bg-primary);
    --bg-secondary: var(--dark-bg-secondary);
    --bg-tertiary: var(--dark-bg-tertiary);
    --border-color: var(--dark-border-color);
}

/* Reset & Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* Prevent horizontal overflow */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

* {
    max-width: 100%;
}

img, picture, video, canvas, svg {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Ensure rows and grids don't overflow */
.row, [class*="grid"] {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* ============================
   Preloader
============================ */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-content {
    text-align: center;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

.loading-text {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================
   Typography
============================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { 
    font-size: clamp(2rem, 5vw, 3.5rem); 
    font-family: var(--font-display);
}

h2 { 
    font-size: clamp(1.75rem, 4vw, 2.5rem); 
}

h3 { 
    font-size: clamp(1.5rem, 3vw, 2rem); 
}

h4 { 
    font-size: clamp(1.25rem, 2.5vw, 1.5rem); 
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* Ensure button text stays white on hover */
.btn:hover {
    color: white !important;
}

a.btn:hover {
    color: white !important;
}

/* ============================
   Container & Layout
============================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    box-sizing: border-box;
}

.section {
    padding: var(--spacing-3xl) 0;
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden;
    box-sizing: border-box;
}

/* ============================
   Buttons
============================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px 0 rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(102, 126, 234, 0.4);
    color: white !important;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: white !important;
    transform: translateY(-2px);
}

.btn-outline-primary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white !important;
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ============================
   Navigation
============================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

body.dark-mode .navbar {
    background: rgba(26, 32, 44, 0.95);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 1rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    position: relative;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: var(--spacing-sm) 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Dropdown Menu Styles */
.nav-item-dropdown {
    position: relative;
}

.nav-item-dropdown .nav-link {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    cursor: pointer;
}

.nav-item-dropdown .nav-link i {
    font-size: 0.75rem;
    transition: transform var(--transition-base);
}

.nav-item-dropdown:hover .nav-link i,
.nav-item-dropdown.active .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    min-width: 280px;
    padding: var(--spacing-sm);
    margin-top: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    z-index: var(--z-dropdown);
}

body.dark-mode .dropdown-menu {
    background: var(--dark-bg-secondary);
    border-color: var(--dark-border-color);
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
    font-size: 0.9375rem;
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    padding-left: calc(var(--spacing-md) + 4px);
}

.dropdown-item:hover i {
    color: var(--primary-color);
}

body.dark-mode .dropdown-item:hover {
    background: var(--dark-bg-tertiary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-sm) 0;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-cta:hover {
    color: white !important;
}

.nav-cta span {
    display: inline-block;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 65px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 65px);
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-xl);
        transition: left var(--transition-base);
        box-shadow: var(--shadow-xl);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item-dropdown {
        width: 100%;
    }
    
    .nav-item-dropdown .nav-link {
        width: 100%;
        justify-content: space-between;
        cursor: pointer;
        user-select: none;
        padding: var(--spacing-md) var(--spacing-sm);
        position: relative;
        border-radius: var(--radius-sm);
        background: transparent;
        transition: all var(--transition-base);
    }
    
    .nav-item-dropdown .nav-link:active {
        background: rgba(102, 126, 234, 0.1);
    }
    
    .nav-item-dropdown .nav-link::after {
        display: none; /* Remove underline for dropdown */
    }
    
    .nav-item-dropdown .nav-link i {
        transition: transform var(--transition-base);
        font-size: 1rem;
        color: var(--primary-color);
        margin-left: var(--spacing-sm);
    }
    
    .nav-item-dropdown.active .nav-link {
        color: var(--primary-color);
        background: rgba(102, 126, 234, 0.05);
    }
    
    .nav-item-dropdown.active .nav-link i {
        transform: rotate(180deg);
    }
    
    .dropdown-menu {
        position: static;
        width: 100%;
        box-shadow: none;
        background: rgba(102, 126, 234, 0.05);
        border: none;
        border-left: 3px solid var(--primary-color);
        margin-top: var(--spacing-xs);
        margin-left: var(--spacing-md);
        padding: var(--spacing-xs) 0;
        opacity: 0;
        visibility: hidden;
        max-height: 0;
        overflow: hidden;
        transition: all 0.3s ease-in-out;
        transform: none;
    }
    
    body.dark-mode .dropdown-menu {
        background: rgba(102, 126, 234, 0.1);
    }
    
    .nav-item-dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 500px;
        margin-bottom: var(--spacing-sm);
    }
    
    .dropdown-item {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.9375rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .dropdown-item:last-child {
        border-bottom: none;
    }
    
    body.dark-mode .dropdown-item {
        border-bottom-color: rgba(255, 255, 255, 0.1);
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .nav-cta span {
        display: none;
    }
}

/* ============================
   Hero Section
============================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.gradient-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.05) 0%, 
        rgba(245, 101, 101, 0.05) 100%);
}

.particles {
    position: absolute;
    inset: 0;
    opacity: 0.5;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typing-text {
    min-height: 1.2em;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.stat {
    animation: fadeInUp 0.6s ease 0.6s both;
}

.stat h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-number::after {
    content: '+';
    color: var(--primary-color);
}

.stat p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

.hero-image {
    position: relative;
    animation: fadeInRight 0.8s ease;
}

.image-wrapper {
    position: relative;
    display: inline-block;
}

.profile-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
}

.image-decoration {
    position: absolute;
    inset: -20px;
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-xl);
    opacity: 0.2;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

.floating-icons {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
    animation-delay: var(--delay);
}

.floating-icon i {
    font-size: 1.5rem;
}

.floating-icon:nth-child(1) {
    top: 10%;
    left: -10%;
    color: #e34c26;
}

.floating-icon:nth-child(2) {
    top: 20%;
    right: -10%;
    color: #1572b6;
}

.floating-icon:nth-child(3) {
    bottom: 30%;
    left: -5%;
    color: #f7df1e;
}

.floating-icon:nth-child(4) {
    bottom: 10%;
    right: -5%;
    color: #61dafb;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    cursor: pointer;
}

.scroll-indicator i {
    font-size: 1.5rem;
    color: var(--text-light);
}

/* Responsive Hero */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-image {
        order: -1;
        margin-bottom: var(--spacing-2xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .floating-icon {
        display: none;
    }
}

/* ============================
   Section Headers
============================ */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-subtitle {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-lg);
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

/* ============================
   About Section
============================ */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
}

.about-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--primary-color);
    color: white;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
}

.experience-badge .years {
    font-size: 2rem;
    font-weight: 800;
}

.experience-badge .text {
    font-size: 0.75rem;
    text-align: center;
    line-height: 1.2;
}

.about-text h3 {
    margin-bottom: var(--spacing-lg);
}

.lead {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.feature-item i {
    color: var(--success-color);
    font-size: 1.125rem;
}

.about-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white !important;
    transform: translateY(-2px);
}

/* Responsive About */
@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .experience-badge {
        width: 100px;
        height: 100px;
        bottom: -10px;
        right: -10px;
    }
    
    .experience-badge .years {
        font-size: 1.5rem;
    }
}

/* ============================
   Portfolio Section
============================ */
.portfolio {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}

/* Portfolio Filters Wrapper with Arrows */
.portfolio-filters-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-md) 0;
}

.filter-arrow {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.125rem;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

body:not(.dark-mode) .filter-arrow {
    background: linear-gradient(145deg, #f0f4f8, #e2e8f0);
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.filter-arrow:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-color: transparent;
    color: white;
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.35);
}

.filter-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.portfolio-filters {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    flex: 1;
    scroll-behavior: smooth;
}

.portfolio-filters::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    flex: 0 0 auto;
    padding: 0.875rem 2rem;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

body:not(.dark-mode) .filter-btn {
    background: linear-gradient(145deg, #ffffff, #f0f4f8);
    border: 2px solid rgba(102, 126, 234, 0.25);
    color: #2d3748;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-shadow: none;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    transition: width var(--transition-base);
    z-index: -1;
}

.filter-btn:hover {
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.filter-btn:hover::before {
    width: 100%;
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
    transform: scale(1.05);
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.filter-btn.active::before {
    width: 100%;
}

body:not(.dark-mode) .filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

/* Mobile optimization */
@media (max-width: 768px) {
    .portfolio-filters-wrapper {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-xl);
    }
    
    .filter-arrow {
        width: 38px;
        height: 38px;
        font-size: 0.875rem;
    }
    
    .portfolio-filters {
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) 0;
    }
    
    .filter-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 576px) {
    .filter-arrow {
        width: 34px;
        height: 34px;
        font-size: 0.75rem;
    }
    
    .filter-btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    min-height: 300px;
    transition: all var(--transition-slow);
}

.portfolio-item {
    opacity: 1;
    transform: scale(1);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s ease forwards;
}

.portfolio-item.hidden {
    display: none !important;
}

.portfolio-item.show {
    animation: fadeInScale 0.5s ease forwards;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Category title after filter buttons */
.filter-category-title {
    text-align: center;
    margin: var(--spacing-xl) 0 var(--spacing-2xl);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s ease;
}

.filter-category-title h3 {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.filter-category-title p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Mobile scroll indicator for filters */
@media (max-width: 968px) {
    .portfolio-filters {
        position: relative;
        padding: var(--spacing-md);
        margin-left: calc(-1 * var(--spacing-lg));
        margin-right: calc(-1 * var(--spacing-lg));
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }
    
    .portfolio-filters::after {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        width: 50px;
        background: linear-gradient(to right, transparent, var(--bg-secondary));
        pointer-events: none;
        opacity: 0.8;
    }
}

.portfolio-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-card:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.9), 
        rgba(245, 101, 101, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-card:hover .portfolio-overlay,
.portfolio-overlay.show-mobile {
    opacity: 1;
}

/* Mobile overlay - always show buttons, tap to toggle details */
@media (max-width: 768px) {
    .portfolio-image {
        cursor: pointer;
    }
    
    .portfolio-overlay.show-mobile .overlay-content {
        transform: translateY(0);
    }
}

.overlay-content {
    text-align: center;
    color: white;
    padding: var(--spacing-lg);
    transform: translateY(20px);
    transition: transform var(--transition-base);
}

.portfolio-card:hover .overlay-content {
    transform: translateY(0);
}

.overlay-content .category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.overlay-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.overlay-content p {
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
    color: rgba(255, 255, 255, 0.9);
}

.portfolio-links {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    transition: all var(--transition-base);
}

.btn-icon:hover {
    background: white;
    color: var(--primary-color);
    transform: scale(1.1);
}

.portfolio-info {
    padding: var(--spacing-lg);
}

.portfolio-info h4 {
    margin-bottom: var(--spacing-sm);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tech-tag {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.portfolio-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    flex-wrap: wrap;
}

.portfolio-actions .btn {
    flex: 1;
    min-width: 120px;
    justify-content: center;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.portfolio-cta {
    text-align: center;
}

/* ============================
   Skills Section
============================ */
.skills {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.skill-category {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.category-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.category-header h3 {
    margin: 0;
}

.skill-item {
    margin-bottom: var(--spacing-lg);
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-percentage {
    font-weight: 600;
    color: var(--primary-color);
}

.skill-progress {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.skill-bar {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-full);
    width: 0;
    transition: width 1.5s ease;
}

/* ============================
   Services Section
============================ */
.services {
    padding: var(--spacing-3xl) 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    position: relative;
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.service-card.featured {
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.05), 
        rgba(245, 101, 101, 0.05));
    border-color: var(--primary-color);
}

.badge-featured {
    position: absolute;
    top: -12px;
    right: 20px;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1), 
        rgba(245, 101, 101, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    transform: scale(1.1);
}

.service-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color var(--transition-base);
}

.service-card:hover .service-icon i {
    color: white;
}

.service-card h3 {
    margin-bottom: var(--spacing-md);
}

.service-features {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.service-features i {
    color: var(--success-color);
    font-size: 0.875rem;
}

/* ============================
   Testimonials Section
============================ */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.testimonials-slider {
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.quote-icon {
    font-size: 2rem;
    color: var(--primary-color);
    opacity: 0.3;
    margin-bottom: var(--spacing-lg);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-color);
}

.author-info h4 {
    margin: 0;
    color: var(--text-primary);
}

.author-info span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.rating {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
}

.rating i {
    color: #fbbf24;
}

/* Swiper Customization */
.swiper-pagination {
    margin-top: var(--spacing-xl);
}

.swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    background: var(--text-light);
    opacity: 0.5;
    transition: all var(--transition-base);
}

.swiper-pagination-bullet-active {
    width: 30px;
    border-radius: 5px;
    background: var(--primary-color);
    opacity: 1;
}

/* ============================
   Contact Section
============================ */
.contact {
    padding: var(--spacing-3xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    margin-bottom: var(--spacing-lg);
}

.contact-items {
    margin: var(--spacing-2xl) 0;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1), 
        rgba(245, 101, 101, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.contact-text h4 {
    margin: 0 0 var(--spacing-xs);
    font-size: 1rem;
}

.contact-text a,
.contact-text span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
}

.social-links a i {
    color: var(--text-primary);
    transition: color var(--transition-base);
}

.social-links a:hover i {
    color: white;
}

/* Contact Form */
.contact-form {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    padding-top: var(--spacing-lg);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group label {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 0.875rem;
    pointer-events: none;
    transition: all var(--transition-base);
}

.form-group textarea + label {
    top: var(--spacing-lg);
    transform: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group select:focus + label,
.form-group select:valid + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--primary-color);
    transform: none;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Responsive Contact */
@media (max-width: 968px) {
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ============================
   Footer
============================ */
.footer {
    background: var(--bg-secondary);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid var(--border-color);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-social a i {
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

.footer-social a:hover i {
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: var(--spacing-sm);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
}

.newsletter-form button {
    padding: var(--spacing-sm) var(--spacing-md);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
}

.footer-bottom p {
    margin: var(--spacing-xs) 0;
    color: var(--text-secondary);
}

.heart-pulse {
    color: var(--danger-color);
    animation: pulse 1s ease infinite;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

/* ============================
   Utility Components
============================ */

/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.whatsapp-button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.whatsapp-button:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.whatsapp-button i {
    font-size: 1.75rem;
    color: white;
}

.whatsapp-tooltip {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 10px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--text-primary);
    color: white;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 100px;
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: var(--z-fixed);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

.back-to-top i {
    font-size: 1.25rem;
    color: white;
}

/* Project Modal */
.project-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-modal);
}

.project-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    background: var(--bg-primary);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    animation: modalIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 1;
}

.modal-close:hover {
    background: var(--danger-color);
    color: white;
}

.modal-body {
    padding: var(--spacing-2xl);
}

/* ============================
   Music Player
============================ */
.music-player {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: rgba(20, 24, 38, 0.85);
    border-radius: 30px;
    padding: 6px 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition-base);
    opacity: 0.6;
}

.music-player:hover {
    opacity: 1;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.25);
}

body.dark-mode .music-player {
    background: rgba(20, 24, 38, 0.9);
    border-color: rgba(255, 255, 255, 0.1);
}

.music-player-content {
    display: flex;
    align-items: center;
    gap: 8px;
}

.music-prev,
.music-next {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.music-prev:hover,
.music-next:hover {
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.9);
}

.music-toggle {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    color: white;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.music-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.music-toggle.playing #playIcon::before {
    content: '\f04c'; /* pause icon */
}

.music-title {
    display: none;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .music-player {
        bottom: 15px;
        left: 15px;
        padding: 5px 8px;
        opacity: 0.5;
    }
    
    .music-player:hover {
        opacity: 0.9;
    }
    
    .music-player-content {
        gap: 6px;
    }
    
    .music-prev,
    .music-next {
        width: 26px;
        height: 26px;
        font-size: 0.65rem;
    }
    
    .music-toggle {
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }
}

@media (max-width: 576px) {
    .music-player {
        bottom: 12px;
        left: 12px;
        padding: 4px 7px;
    }
    
    .music-player-content {
        gap: 5px;
    }
    
    .music-prev,
    .music-next {
        width: 24px;
        height: 24px;
        font-size: 0.6rem;
    }
    
    .music-toggle {
        width: 28px;
        height: 28px;
        font-size: 0.65rem;
    }
}

/* Modal images responsive */
.modal-body img {
    max-width: 100%;
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.modal-body .project-image,
.modal-body .modal-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.modal-body .project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.modal-body .project-gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
    cursor: pointer;
}

.modal-body .project-gallery img:hover {
    transform: scale(1.05);
}

/* Modal content styles */
.modal-header {
    margin-bottom: var(--spacing-lg);
}

.modal-category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
}

.modal-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.modal-gallery img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
    cursor: pointer;
}

.modal-gallery img:hover {
    transform: scale(1.02);
}

.modal-info {
    margin-top: var(--spacing-xl);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.info-item strong {
    display: block;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.tech-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-primary);
}

.modal-description,
.modal-features {
    margin-bottom: var(--spacing-lg);
}

.modal-description h3,
.modal-features h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.modal-features ul {
    list-style: none;
    padding: 0;
}

.modal-features li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-features li i {
    color: var(--success-color);
    font-size: 1rem;
}

.modal-actions {
    display: flex;
    justify-content: center;
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-color);
}

/* Mobile modal adjustments */
@media (max-width: 768px) {
    .project-modal {
        padding: var(--spacing-md);
    }
    
    .modal-content {
        max-width: 100%;
        max-height: 95vh;
        margin: 0;
    }
    
    .modal-body {
        padding: var(--spacing-lg);
    }
    
    .modal-close {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        width: 36px;
        height: 36px;
    }
    
    .modal-body img {
        max-width: 100%;
        height: auto;
        object-fit: contain;
    }
    
    .modal-gallery {
        grid-template-columns: 1fr;
    }
    
    .modal-gallery img {
        height: auto;
        max-height: 300px;
        object-fit: contain;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
        padding: var(--spacing-md);
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 576px) {
    .project-modal {
        padding: var(--spacing-sm);
    }
    
    .modal-body {
        padding: var(--spacing-md);
    }
    
    .modal-body img {
        margin: var(--spacing-sm) 0;
    }
    
    .modal-gallery img {
        max-height: 250px;
    }
    
    .modal-header h2 {
        font-size: 1.25rem;
    }
}

/* ============================
   Animations
============================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.2;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.3;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================
   Responsive Design
============================ */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }
    
    .back-to-top {
        right: 30px;
        bottom: 100px;
    }
    
    /* Prevent overflow on mobile */
    .hero, .about, .portfolio, .skills, .services, .contact {
        overflow-x: hidden;
        width: 100%;
        max-width: 100vw;
    }
    
    .hero-content, .about-content {
        width: 100%;
        overflow-x: hidden;
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 100%;
        padding: 0 var(--spacing-md);
    }
    
    .portfolio-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    /* Additional mobile overflow fixes */
    * {
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .hero-title, .section-title {
        word-break: break-word;
        hyphens: auto;
    }
}

/* ============================
   Print Styles
============================ */
@media print {
    .navbar,
    .whatsapp-button,
    .back-to-top,
    .theme-toggle {
        display: none;
    }
    
    body {
        font-size: 12pt;
    }
    
    .container {
        max-width: 100%;
    }
}