/* ===============================
   CSS VARIABLES - DARK THEME (DEFAULT)
=============================== */
:root[data-theme="dark"] {
    --primary-color: #D20A2E;
    --secondary-color: #FF4500;
    --accent-color: #FF6B6B;
    --background-color: #0a0a0a;
    --background-secondary: #121212;
    --background-tertiary: #1e1e1e;
    --text-color: #e0e0e0;
    --text-secondary: #a0a0a0;
    --highlight-color: #f0f0f0;
    --card-bg: rgba(30, 30, 30, 0.98);
    --shadow-color: rgba(0, 0, 0, 0.5);
    --shadow-glow: rgba(210, 10, 46, 0.3);
    --border-color: rgba(255, 255, 255, 0.1);
}

/* ===============================
   CSS VARIABLES - LIGHT THEME
=============================== */
:root[data-theme="light"] {
    --primary-color: #D20A2E;
    --secondary-color: #FF4500;
    --accent-color: #FF6B6B;
    --background-color: #f5f5f5;
    --background-secondary: #ffffff;
    --background-tertiary: #fafafa;
    --text-color: #1a1a1a;
    --text-secondary: #666666;
    --highlight-color: #000000;
    --card-bg: rgba(255, 255, 255, 0.98);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-glow: rgba(210, 10, 46, 0.15);
    --border-color: rgba(0, 0, 0, 0.1);
}

/* ===============================
   GLOBAL RESET & BASE STYLES
=============================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    font-size: 16px;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===============================
   LOADING SCREEN
=============================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--background-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

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

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* ===============================
   PARTICLES BACKGROUND
=============================== */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.15;
}

/* ===============================
   HEADER & NAVIGATION
=============================== */
header {
    background: var(--background-tertiary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px var(--shadow-color);
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-color);
}

header:hover {
    box-shadow: 0 4px 30px var(--shadow-glow);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-text {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.logo .dot {
    color: var(--primary-color);
    font-size: 2rem;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    align-items: center;
    height: 44px;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

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

.nav-links a:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle,
.lang-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    color: var(--text-color);
}

.theme-toggle:hover,
.lang-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-glow);
    border-color: var(--primary-color);
}

.theme-toggle {
    width: 44px;
    height: 44px;
    position: relative;
    justify-content: center;
}

.sun-icon,
.moon-icon {
    position: absolute;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(180deg) scale(0);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="light"] .sun-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

[data-theme="light"] .moon-icon {
    opacity: 0;
    transform: rotate(-180deg) scale(0);
}

.lang-toggle {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.lang-flag {
    font-size: 1.2rem;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ===============================
   HERO SECTION
=============================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    background: linear-gradient(135deg, var(--background-color) 0%, var(--background-secondary) 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, var(--shadow-glow) 0%, transparent 70%);
    opacity: 0.3;
    animation: pulse-bg 4s ease-in-out infinite;
}

@keyframes pulse-bg {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.5; }
}

.hero-content {
    max-width: 900px;
    text-align: center;
    z-index: 2;
    opacity: 0;
    animation: slideUp 0.8s ease forwards 0.2s;
}

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

.hero-badge {
    display: inline-block;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    padding: 0.75rem 1.5rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    animation: fadeInScale 0.8s ease forwards 0.4s;
    opacity: 0;
    transition: all 0.3s ease;
    cursor: pointer;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-badge:hover {
    border-color: var(--primary-color);
    background: rgba(210, 10, 46, 0.1);
    color: var(--primary-color);
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--highlight-color);
    letter-spacing: -1px;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    animation: gradientShift 3s ease infinite;
    background-size: 200% 200%;
    font-weight: 800;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.typing-effect {
    display: inline-block;
    border-right: 3px solid var(--primary-color);
    padding-right: 8px;
    animation: blink 0.7s step-end infinite;
}

@keyframes blink {
    50% { border-color: transparent; }
}

.hero-subtitle,
.hero-subtitle-2 {
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.8;
    animation: fadeIn 0.8s ease forwards 0.5s;
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin: 2.5rem 0;
    animation: fadeIn 0.8s ease forwards 0.6s;
    opacity: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: inherit;
    filter: brightness(1.2);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    box-shadow: 0 4px 15px var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background: var(--card-bg);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px var(--shadow-glow);
}

.quote {
    margin-top: 3rem;
    padding: 2.5rem;
    background: var(--card-bg);
    border-left: 4px solid var(--primary-color);
    border-radius: 12px;
    position: relative;
    box-shadow: 0 4px 20px var(--shadow-color);
    animation: fadeIn 0.8s ease forwards 0.7s;
    opacity: 0;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
}

.quote:hover {
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 8px 30px var(--shadow-glow);
    transform: translateX(5px);
}

.quote-icon {
    position: absolute;
    top: -15px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.1;
    font-family: Georgia, serif;
}

.quote-text {
    font-style: italic;
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

.quote-author {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: right;
    font-family: 'Space Mono', monospace;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: bounce 2s infinite;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.scroll-indicator:hover {
    opacity: 1;
}

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

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--text-secondary);
    border-radius: 20px;
    position: relative;
    transition: border-color 0.3s ease;
}

.scroll-indicator:hover .mouse {
    border-color: var(--primary-color);
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 30px; }
}

/* ===============================
   SECTION COMMON STYLES
=============================== */
section {
    padding: 5rem 2rem;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 0.8s ease forwards;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--highlight-color);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%); 
    width: 150px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    animation: slideInUp 0.6s ease forwards 0.2s;
    opacity: 0;
    margin-left: -75px; 
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 1.5rem;
    font-weight: 500;
}

/* ===============================
   PROJECTS SECTION
=============================== */
.projects-section {
    background: var(--background-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.project-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid var(--border-color);
    position: relative;
}

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

.project-card[data-aos="fade-up"] {
    animation: cardFloatIn 0.6s ease forwards;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px var(--shadow-glow);
    border-color: var(--primary-color);
}

.project-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--background-tertiary);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.project-card:hover .project-image img {
    transform: scale(1.15) rotate(2deg);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(210, 10, 46, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    backdrop-filter: blur(5px);
}

.project-card:hover .project-overlay {
    opacity: 0;
}

.project-link {
    color: white;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.3s ease;
    border: 2px solid white;
}

.project-link:hover {
    background: white;
    color: var(--primary-color);
    transform: scale(1.2) rotate(90deg);
}

.project-content {
    padding: 2rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-glow);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--highlight-color);
    margin-bottom: 0.8rem;
    transition: color 0.3s ease;
}

.project-card:hover .project-title {
    color: var(--primary-color);
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    min-height: 60px;
    font-weight: 500;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.project-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-btn {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    position: relative;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.project-btn::after {
    bottom: -2px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

.project-btn:hover::after {
    width: 100%;
}

.section-footer {
    text-align: center;
    margin-top: 3rem;
}

.btn-more {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.1rem 2.8rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 4px 15px var(--shadow-glow);
    border: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-more:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--shadow-glow);
}

/* ===============================
   ABOUT SECTION
=============================== */
.about-section {
    background: var(--background-color);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto 4rem;
    align-items: start;
}

.about-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 800;
    position: relative;
    padding-bottom: 1rem;
}

.about-text p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    font-weight: 500;
}

.about-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    width: 100%;
}

.stat-item {
    background: var(--card-bg);
    padding: 2rem 1.5rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow-color);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), transparent);
    opacity: 0.1;
    transition: left 0.4s ease;
}

.stat-item:hover::before {
    left: 100%;
}

.stat-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px var(--shadow-glow);
    border-color: var(--primary-color);
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Skills */
.skills-container {
    max-width: 1200px;
    margin: 0 auto;
}

.skills-title {
    font-size: 2rem;
    color: var(--highlight-color);
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 800;
    position: relative;
}

.skills-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.skills-category {
    margin-bottom: 3.5rem;
}

.skills-category h4 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

.skill-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 10px var(--shadow-color);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.skill-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 8px 25px var(--shadow-glow);
    border-color: var(--primary-color);
}

.skill-item img {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.skill-item:hover img {
    transform: scale(1.15) rotate(-5deg);
}

.skill-item span {
    display: block;
    color: var(--text-color);
    font-weight: 700;
    font-size: 0.95rem;
}

/* ===============================
   CONTACTS SECTION
=============================== */
.contacts-section {
    background: var(--background-secondary);
}

.contacts-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-weight: 500;
}

.contact-methods {
    margin-bottom: 2.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: var(--card-bg);
    padding: 1.8rem 2rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    border: 2px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 30px var(--shadow-glow);
    transform: translateX(5px);
}

.contact-item svg {
    color: var(--primary-color);
    width: 28px;
    height: 28px;
}

.contact-item a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
}

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

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: var(--card-bg);
    padding: 1.1rem 2.2rem;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 2px solid var(--border-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--shadow-glow);
}

/* ===============================
   FOOTER
=============================== */
footer {
    background: var(--background-tertiary);
    color: var(--text-secondary);
    text-align: center;
    padding: 3rem 2rem;
    border-top: 2px solid var(--border-color);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* ===============================
   RESPONSIVE DESIGN
=============================== */
@media (max-width: 1024px) {
    nav {
        padding: 1rem 1.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    section {
        padding: 3rem 1.5rem;
    }
    
    .hero-section {
        padding: 8rem 1.5rem 4rem;
    }
}

@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    nav {
        padding: 0.75rem 1rem;
        gap: 1rem;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: 0;
        overflow-y: auto;
        background: var(--background-tertiary);
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        padding: 0 1rem;
        transition: height 0.6s ease-in-out, padding 0.6s ease-in-out;
        box-shadow: 0 4px 20px var(--shadow-color);
        z-index: 999;
        gap: 0.75rem;
        bottom: 0;
    }
    
    .nav-links.active {
        height: calc(100vh - 60px);
        padding: 1.5rem 1rem;
        box-shadow: 0 8px 30px var(--shadow-glow);
    }
    
    .nav-links a {
        width: 100%;
        text-align: center;
        padding: 1rem 1.25rem;
        font-size: 1rem;
        border: 2px solid var(--border-color);
        border-radius: 12px;
        margin: 0;
        font-weight: 700;
        transition: all 0.3s ease-out;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        background: var(--card-bg);
        color: var(--text-color);
        opacity: 0;
    }
    
    .nav-links.active a {
        opacity: 1;
        animation: linkFadeIn 0.6s ease-out forwards;
    }
    
    @keyframes linkFadeIn {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .nav-links a:nth-child(1) { animation-delay: 0.1s; }
    .nav-links a:nth-child(2) { animation-delay: 0.15s; }
    .nav-links a:nth-child(3) { animation-delay: 0.2s; }
    .nav-links a:nth-child(4) { animation-delay: 0.25s; }
    .nav-links a:nth-child(5) { animation-delay: 0.3s; }
    
    .nav-links a:hover {
        background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
        color: white;
        border-color: var(--primary-color);
        transform: translateY(-2px);
        box-shadow: 0 4px 15px var(--shadow-glow);
    }
    
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column;
        gap: 0.4rem;
        width: 30px;
        height: 30px;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
    }
    
    .mobile-menu-toggle span {
        width: 100%;
        height: 3px;
        background: var(--text-color);
        border-radius: 2px;
        transition: all 0.3s ease;
        display: block;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: translateX(-10px);
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-section {
        padding: 5rem 1.5rem 3rem;
        min-height: auto;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        padding: 0.75rem 1.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-card {
        flex-direction: column;
    }
    
    .project-image {
        height: 250px;
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-item h3 {
        font-size: 1.5rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 0.75rem;
    }
    
    .skill-item {
        font-size: 0.85rem;
        padding: 0.75rem 0.5rem;
    }
    
    section {
        padding: 2.5rem 1rem;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form {
        max-width: 100%;
    }
    
    .form-group {
        margin-bottom: 1.25rem;
    }
    
    input, textarea {
        font-size: 16px;
        padding: 0.75rem;
    }
    
    .lang-toggle .lang-code {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 13px;
    }
    
    body {
        font-size: 13px;
    }
    
    nav {
        padding: 0.5rem 0.75rem;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .nav-controls {
        gap: 0.5rem;
    }
    
    .theme-toggle, .lang-toggle {
        width: 36px;
        height: 36px;
        padding: 0.4rem;
    }
    
    .hero-section {
        padding: 4rem 1rem 2rem;
    }
    
    .hero-content h1 {
        font-size: 1.5rem;
        line-height: 1.3;
    }
    
    .hero-content p {
        font-size: 0.9rem;
    }
    
    .hero-badge {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        padding: 0.65rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .quote {
        font-size: 0.95rem;
        padding: 1rem;
        margin: 1.5rem 0;
    }
    
    .project-card {
        flex-direction: column;
    }
    
    .project-image {
        height: 200px;
        width: 100%;
    }
    
    .project-content {
        padding: 1rem;
    }
    
    .project-title {
        font-size: 1.1rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .stat-item {
        text-align: center;
    }
    
    .stat-item h3 {
        font-size: 1.2rem;
    }
    
    .stat-item p {
        font-size: 0.85rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        gap: 0.5rem;
    }
    
    .skill-item {
        font-size: 0.75rem;
        padding: 0.5rem 0.4rem;
    }
    
    section {
        padding: 2rem 0.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.1rem;
    }
    
    .contact-form {
        max-width: 100%;
        padding: 1rem 0;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    input, textarea {
        font-size: 16px;
        padding: 0.65rem;
        width: 100%;
    }
    
    footer {
        padding: 2rem 1rem;
        font-size: 0.85rem;
    }
}

/* ===============================
   UTILITIES & ANIMATIONS
=============================== */
.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Slide animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Zoom animations */
@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Float animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Glow animation */
@keyframes glow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(210, 10, 46, 0.3);
    }
    50% {
        text-shadow: 0 0 20px rgba(210, 10, 46, 0.6);
    }
}

/* Bounce animation */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Pulse animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Rotate animation */
@keyframes spin-smooth {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"].aos-animate {
    animation: slideInUp 0.8s ease forwards;
    transform: translateY(0);
}

[data-aos="fade-down"].aos-animate {
    animation: slideInDown 0.8s ease forwards;
    transform: translateY(0);
}

[data-aos="fade-right"].aos-animate {
    animation: slideInRight 0.8s ease forwards;
    transform: translateX(0);
}

[data-aos="fade-left"].aos-animate {
    animation: slideInLeft 0.8s ease forwards;
    transform: translateX(0);
}

[data-aos="zoom-in"].aos-animate {
    animation: zoomIn 0.8s ease forwards;
    transform: scale(1);
}

/* Apply animations to common elements */
.section-title {
    animation: slideInDown 0.8s ease forwards;
}

.section-subtitle {
    animation: slideInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.project-card {
    animation: slideInUp 0.8s ease forwards;
}

.skill-item {
    animation: zoomIn 0.6s ease forwards;
}

.stat-item {
    animation: slideInUp 0.8s ease forwards;
}

/* Hover effects for better interactivity */
.skill-item:hover {
    animation: float 0.6s ease infinite;
}

.project-card:hover {
    animation: none;
}

/* Lazy Loading Images */
img[data-src] {
    opacity: 1;
    transition: opacity 0.3s ease;
    display: block;
}

img[data-src].loaded {
    opacity: 1;
    animation: zoomIn 0.5s ease;
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Smooth transitions */
* {
    scroll-behavior: smooth;
}