/* ===== CSS Variables / Design System ===== */
:root {
    /* Colors - Dark Theme (default) */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2128;
    --bg-card-hover: #21262d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-primary: #00d4ff;
    --accent-secondary: #a855f7;
    --border-color: #30363d;
    --header-bg: rgba(13, 17, 23, 0.85);
    --overlay-bg: rgba(13, 17, 23, 0.9);
    --input-bg: rgba(255, 255, 255, 0.03);
    --toast-bg: #1c2128;
    --toast-success: #238636;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00d4ff, #a855f7);
    --gradient-card: linear-gradient(145deg, #1c2128, #161b22);
    --gradient-glow: 0 0 40px rgba(0, 212, 255, 0.3);
    
    /* Typography */
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 6rem 0;
    --container-width: 1200px;
    --border-radius: 0.75rem;
    --border-radius-lg: 1rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-primary: #0ea5e9;
    --accent-secondary: #8b5cf6;
    --border-color: #e2e8f0;
    --header-bg: rgba(248, 250, 252, 0.9);
    --overlay-bg: rgba(255, 255, 255, 0.95);
    --input-bg: #f1f5f9;
    --toast-bg: #ffffff;
    --toast-success: #16a34a;
    
    --gradient-primary: linear-gradient(135deg, #0ea5e9, #8b5cf6);
    --gradient-card: linear-gradient(145deg, #ffffff, #f8fafc);
    --gradient-glow: 0 0 40px rgba(14, 165, 233, 0.25);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* ===== Utility Classes ===== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin-bottom: 4rem;
}
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 14px 35px rgba(37, 211, 102, 0.55);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: var(--gradient-glow);
}

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

.btn-outline:hover {
    background: var(--accent-primary);
    color: var(--bg-primary);
    box-shadow: var(--gradient-glow);
}

.btn-full {
    width: 100%;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.5rem 0;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background: var(--header-bg);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-secondary);
    padding: 0.5rem;
    border-radius: 9999px;
    border: 1px solid var(--border-color);
    
}

.nav-item {
    list-style: none
}

.nav-link {
    position: relative;
    display: block;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.625rem 1.25rem;
    border-radius: 9999px;
    transition: all var(--transition-normal);
}

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

.nav-link.active {
    background: var(--gradient-primary);
    color: #ffffff;
}

.nav-cta {
    background: var(--gradient-primary);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--gradient-glow);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--bg-card-hover);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    transform: rotate(15deg);
}

/* Show/hide sun and moon icons based on theme */
.theme-toggle .sun-icon {
    display: none;
}

.theme-toggle .moon-icon {
    display: block;
}

[data-theme="light"] .theme-toggle .sun-icon {
    display: block;
}

[data-theme="light"] .theme-toggle .moon-icon {
    display: none;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
    transition: all var(--transition-normal);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}


/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding-top: 5rem;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, var(--bg-primary) 0%, transparent 30%, transparent 70%, var(--bg-primary) 100%);
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 8s ease-in-out infinite;
}

.shape-1 {
    top: 10%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: rgba(0, 212, 255, 0.15);
}

.shape-2 {
    bottom: 20%;
    left: 5%;
    width: 400px;
    height: 400px;
    background: rgba(168, 85, 247, 0.1);
    animation-delay: 2s;
}

[data-theme="light"] .shape-1 {
    background: rgba(14, 165, 233, 0.2);
}

[data-theme="light"] .shape-2 {
    background: rgba(139, 92, 246, 0.15);
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.3; }
    50% { transform: translateY(-30px) scale(1.1); opacity: 0.5; }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
}

.hero-subtitle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-subtitle .line {
    width: 3rem;
    height: 1px;
    background: var(--accent-primary);
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-services {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
}

.service-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.icon-box {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    color: var(--accent-primary);
    transition: all var(--transition-normal);
}

.service-icon:hover .icon-box {
    background: rgba(0, 212, 255, 0.2);
    transform: translateY(-5px);
}

.service-icon span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color var(--transition-normal);
}

.service-icon:hover span {
    color: var(--text-primary);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    animation: bounce 2s ease-in-out infinite;
}

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

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin: 1rem 0 1.5rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Services Section ===== */
.services {
    padding: var(--section-padding);
    position: relative;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: all var(--transition-slow);
}

[data-theme="light"] .service-card {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

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

.service-icon-large {
    width: 3.5rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    transition: background var(--transition-normal);
}

[data-theme="light"] .service-icon-large {
    background: rgba(14, 165, 233, 0.1);
}

.service-card:hover .service-icon-large {
    background: rgba(0, 212, 255, 0.2);
}

[data-theme="light"] .service-card:hover .service-icon-large {
    background: rgba(14, 165, 233, 0.2);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.service-features li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-primary);
    border-radius: 50%;
}

/* ===== Projects Section ===== */
.projects {
    padding: var(--section-padding);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    background: var(--bg-card);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.10);
}

.project-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s ease;
}

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

.project-overlay {
    position: absolute;
    inset: 0;
    background: var(--overlay-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-overlay .project-category {
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

.project-overlay h3 {
    font-size: 1.5rem;
    margin: 0.5rem 0 0.75rem;
}

.project-overlay p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.2);
    border-radius: 50%;
    color: var(--accent-primary);
    transition: all var(--transition-normal);
}

.project-link:hover {
    background: rgba(0, 212, 255, 0.3);
    transform: scale(1.1);
}

.project-info {
    padding: 1.5rem;
}

.project-category-tag {
    color: var(--accent-primary);
    font-size: 0.875rem;
    font-weight: 500;
}

.project-info h3 {
    font-size: 1.125rem;
    margin: 0.25rem 0 0.75rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tags span {
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: 9999px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}
[data-theme="light"] .project-tags span {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    background: rgba(240,240,245, 1)
}

.projects-cta {
    text-align: center;
    margin-top: 3rem;
}

/* ===== Skills Section ===== */
.skills {
    padding: var(--section-padding);
}

.skills-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.skills-bars h3,
.skills-tools h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

.skill-percent {
    color: var(--accent-primary);
}

.skill-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 9999px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 9999px;
    width: 0;
    transition: width 1s ease;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.tool-item {
    padding: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    cursor: pointer;
}

[data-theme="light"] .tool-item {
    background: var(--bg-card);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.tool-item:hover {
    border-color: var(--accent-primary);
    transform: translateY(-5px);
    box-shadow: var(--gradient-glow);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* ===== Contact Section ===== */
.contact {
    padding: var(--section-padding);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: color var(--transition-normal);
}

.contact-item:hover .contact-value {
    color: var(--accent-primary);
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--accent-primary);
    transition: background var(--transition-normal);
}

[data-theme="light"] .contact-icon {
    background: rgba(14, 165, 233, 0.1);
}

.contact-item:hover .contact-icon {
    background: rgba(0, 212, 255, 0.2);
}

[data-theme="light"] .contact-item:hover .contact-icon {
    background: rgba(14, 165, 233, 0.2);
}

.contact-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.contact-value {
    font-weight: 500;
    transition: color var(--transition-normal);
}

.social-links h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

[data-theme="light"] .social-icon {
    background: var(--bg-card);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.social-icon:hover {
    border-color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.1);
    color: var(--accent-primary);
    transform: translateY(-5px);
}

[data-theme="light"] .social-icon:hover {
    background: rgba(14, 165, 233, 0.1);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-normal);
    resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

[data-theme="light"] .form-group input:focus,
[data-theme="light"] .form-group textarea:focus {
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

/* ===== Custom Toast Notification ===== */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--toast-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    min-width: 300px;
    max-width: 400px;
    animation: slideIn 0.3s ease forwards;
    transform: translateX(100%);
    opacity: 0;
}

[data-theme="light"] .toast {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.hide {
    animation: slideOut 0.3s ease forwards;
}

@keyframes slideIn {
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.toast-icon {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.toast-icon.success {
    background: rgba(35, 134, 54, 0.2);
    color: var(--toast-success);
}

[data-theme="light"] .toast-icon.success {
    background: rgba(22, 163, 74, 0.15);
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--text-primary);
    margin-bottom: 0.125rem;
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
    flex-shrink: 0;
}

.toast-close:hover {
    color: var(--text-primary);
}

/* ===== Footer ===== */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.footer-copyright .heart {
    color: var(--accent-primary);
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-nav a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: color var(--transition-normal);
}

.footer-nav a:hover {
    color: var(--text-primary);
}

/* ===== Animations ===== */
.animate-fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive Styles ===== */
@media (max-width: 1024px) {
    .skills-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-cta {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: calc(100% + 0rem);
        left: 0rem;
        right: 0rem;
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius-lg);
        border-top-left-radius: 0;
        border-top-right-radius: 0;
        padding: 1rem;
        gap: 0.25rem;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
        background: var(--header-bg);
        backdrop-filter: blur(3px);
        -webkit-backdrop-filter: blur(3px);
    }
    
    [data-theme="light"] .nav-menu.active {
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
        color: black
    }
    
    .nav-menu.active .nav-item {
        border-bottom: none;
    }
    
    .nav-menu.active .nav-link {
        display: block;
        padding: 0.875rem 1rem;
        font-size: 1rem;
        border-radius: var(--border-radius);
        
    }
    
    .nav-menu.active .nav-link:hover,
    .nav-menu.active .nav-link.active {
        background: var(--gradient-primary);
    }
    
    .hero-services {
        gap: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .toast-container {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }
    
    .toast {
        min-width: auto;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero-services {
        flex-wrap: wrap;
    }
    
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}