/* ============================================
   GUERRIERGETHO.COM - Tech-Spirit Design
   Glassmorphism | Dark Theme | Animations
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #0d1224;
    --bg-tertiary: #111936;
    --blue-dark: #1a237e;
    --blue-medium: #283593;
    --blue-light: #3949ab;
    --yellow-electric: #00dbe3;
    --yellow-glow: #00b8c4;
    --white: #ffffff;
    --white-muted: rgba(255, 255, 255, 0.8);
    --white-subtle: rgba(255, 255, 255, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);

    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Selection */
::selection {
    background: var(--yellow-electric);
    color: var(--bg-primary);
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--yellow-electric);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
}

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

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: 0 8px 32px var(--glass-shadow);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.btn-primary {
    background: var(--yellow-electric);
    color: var(--bg-primary);
    box-shadow: 0 0 30px rgba(0, 219, 227, 0.3);
}

.btn-primary:hover {
    background: var(--yellow-glow);
    box-shadow: 0 0 50px rgba(0, 219, 227, 0.5);
    transform: translateY(-3px);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--glass-border);
}

.btn-secondary:hover {
    border-color: var(--yellow-electric);
    color: var(--yellow-electric);
    transform: translateY(-3px);
}

.btn-full {
    width: 100%;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--bg-primary);
    background: var(--yellow-electric);
    padding: 6px 10px;
    border-radius: 8px;
    text-shadow: none;
    box-shadow: 0 0 15px rgba(0, 219, 227, 0.4);
}

.logo-name {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.nav-logo:hover .logo-icon {
    box-shadow: 0 0 25px rgba(0, 219, 227, 0.6);
}

.nav-logo:hover .logo-name {
    color: var(--yellow-electric);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white-muted);
    position: relative;
    padding: 5px 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Language Selector */
.lang-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    color: var(--white);
    font-family: var(--font-display);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    border-color: var(--yellow-electric);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 10px 0;
    min-width: 150px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown li {
    padding: 10px 20px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-dropdown li:hover {
    background: var(--glass-bg);
    color: var(--yellow-electric);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: all var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px;
}

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

.particles {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(26, 35, 126, 0.4) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(0, 219, 227, 0.1) 0%, transparent 40%),
                radial-gradient(circle at 50% 80%, rgba(40, 53, 147, 0.3) 0%, transparent 50%);
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 60px;
    max-width: 1200px;
    width: 100%;
}

.hero-image-container {
    flex: 0 0 400px;
}

.hero-image-wrapper {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 30px;
    animation: float 6s ease-in-out infinite;
}

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

.image-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(255, 235, 59, 0.3) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    letter-spacing: 3px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--white) 0%, var(--yellow-electric) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
    0% { filter: drop-shadow(0 0 20px rgba(0, 219, 227, 0.3)); }
    100% { filter: drop-shadow(0 0 40px rgba(0, 219, 227, 0.6)); }
}

.typewriter-container {
    font-family: var(--font-display);
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--yellow-electric);
    margin-bottom: 25px;
    min-height: 40px;
}

.typewriter {
    border-right: none;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-motto {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--white-subtle);
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    animation: bounce 2s ease-in-out infinite;
}

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

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--white-muted);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--yellow-electric);
    border-radius: 2px;
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0; }
}

.scroll-indicator span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--white-subtle);
}

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

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--white) 0%, var(--yellow-electric) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--white-subtle);
    font-size: 1.1rem;
    margin-bottom: 60px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 60px;
    align-items: start;
}

.about-image .image-card {
    padding: 15px;
    position: sticky;
    top: 120px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    display: block;
}

.about-content .glass-card {
    padding: 40px;
}

.about-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--glass-border);
}

.about-intro strong {
    color: var(--yellow-electric);
}

.about-section {
    margin-bottom: 30px;
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-section h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-section h3 i {
    color: var(--yellow-electric);
    font-size: 1.1rem;
}

.about-section p {
    color: var(--white-muted);
    line-height: 1.8;
}

.about-section p strong {
    color: var(--yellow-electric);
}

.about-section p a {
    color: var(--yellow-electric);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast);
}

.about-section p a:hover {
    border-bottom-color: var(--yellow-electric);
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills {
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.skill-card {
    padding: 35px;
    transition: all var(--transition-medium);
}

.skill-card:hover {
    transform: translateY(-10px);
    border-color: var(--yellow-electric);
    box-shadow: 0 20px 50px rgba(0, 219, 227, 0.1);
}

.skill-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--blue-medium) 0%, var(--blue-dark) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.skill-icon i {
    font-size: 1.8rem;
    color: var(--yellow-electric);
}

.skill-card h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.tag {
    padding: 6px 14px;
    background: rgba(0, 219, 227, 0.1);
    border: 1px solid rgba(0, 219, 227, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--yellow-electric);
}

.skill-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-item span {
    font-size: 0.9rem;
    color: var(--white-muted);
}

.progress-bar {
    height: 6px;
    background: var(--glass-bg);
    border-radius: 3px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, var(--blue-light) 0%, var(--yellow-electric) 100%);
    border-radius: 3px;
    transition: width 1s ease;
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */
.portfolio {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.portfolio-card {
    padding: 30px;
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.portfolio-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 219, 227, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    border-color: var(--yellow-electric);
}

.portfolio-card:hover::before {
    opacity: 1;
}

.portfolio-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--blue-medium) 0%, var(--blue-dark) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all var(--transition-medium);
}

.portfolio-card:hover .portfolio-icon {
    background: linear-gradient(135deg, var(--yellow-electric) 0%, var(--yellow-glow) 100%);
}

.portfolio-icon i {
    font-size: 1.5rem;
    color: var(--white);
    transition: color var(--transition-medium);
}

.portfolio-card:hover .portfolio-icon i {
    color: var(--bg-primary);
}

.portfolio-card h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.portfolio-card p {
    color: var(--white-subtle);
    font-size: 0.9rem;
}

.portfolio-link {
    position: absolute;
    top: 15px;
    right: 15px;
    color: var(--white-subtle);
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-medium);
}

.portfolio-card:hover .portfolio-link {
    opacity: 1;
    transform: translateX(0);
    color: var(--yellow-electric);
}

/* ============================================
   PUBLICATIONS SECTION
   ============================================ */
.publications {
    background: var(--bg-primary);
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.publication-card {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: all var(--transition-medium);
}

.publication-card:hover {
    transform: translateY(-10px);
    border-color: var(--yellow-electric);
}

.publication-card.coming-soon {
    opacity: 0.7;
}

.book-cover {
    width: 80px;
    height: 100px;
    background: linear-gradient(135deg, var(--blue-medium) 0%, var(--blue-dark) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.book-cover i {
    font-size: 2rem;
    color: var(--yellow-electric);
}

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

.publication-content h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.publication-category {
    display: inline-block;
    padding: 5px 15px;
    background: rgba(0, 219, 227, 0.1);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--yellow-electric);
    margin-bottom: 15px;
}

.publication-content p {
    font-size: 0.9rem;
    color: var(--white-subtle);
    line-height: 1.6;
}

.philosophy-section {
    padding: 50px;
    text-align: center;
}

.philosophy-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--yellow-electric) 0%, var(--yellow-glow) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
}

.philosophy-icon i {
    font-size: 2.5rem;
    color: var(--bg-primary);
}

.philosophy-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.philosophy-section p {
    max-width: 800px;
    margin: 0 auto;
    color: var(--white-muted);
    line-height: 1.8;
    font-size: 1.05rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    padding: 40px;
}

.contact-image {
    margin-bottom: 30px;
    border-radius: 20px;
    overflow: hidden;
}

.contact-image img {
    width: 100%;
    height: auto;
    max-height: 450px;
    object-fit: contain;
    display: block;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item i {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--blue-medium) 0%, var(--blue-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--yellow-electric);
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    margin-bottom: 5px;
    font-size: 0.9rem;
    color: var(--white-subtle);
}

.contact-item p {
    font-size: 1rem;
}

.contact-item a {
    color: var(--white);
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.social-link {
    width: 50px;
    height: 50px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all var(--transition-medium);
}

.social-link:hover {
    background: var(--yellow-electric);
    color: var(--bg-primary);
    border-color: var(--yellow-electric);
    transform: translateY(-5px);
}

/* Contact Form */
.contact-form {
    padding: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--white-subtle);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group label i {
    color: var(--yellow-electric);
    font-size: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--yellow-electric);
    box-shadow: 0 0 20px rgba(0, 219, 227, 0.1);
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 30px;
}

.footer-logo .logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 10px;
    color: var(--white);
    transition: color var(--transition-fast);
}

.footer-logo .logo-text:hover {
    color: var(--yellow-electric);
}

.footer-logo p {
    color: var(--white-subtle);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--white-muted);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--yellow-electric);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--white-subtle);
}

.footer-bottom strong {
    color: var(--yellow-electric);
}

.footer-bottom strong a {
    color: var(--yellow-electric);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.footer-bottom strong a:hover {
    text-shadow: 0 0 10px var(--yellow-electric);
}

/* ============================================
   ANIMATIONS - Fade In on Scroll
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .logo-name {
        display: inline !important;
        font-size: 0.95rem;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-image-container {
        flex: 0 0 auto;
        max-width: 350px;
    }

    .hero-cta {
        justify-content: center;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-image .image-card {
        position: static;
        max-width: 400px;
        margin: 0 auto;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .publications-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .logo-name {
        display: inline !important;
        font-size: 0.8rem !important;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: 20px;
        transform: translateX(-100%);
        transition: transform var(--transition-medium);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-link {
        display: block;
        padding: 15px 0;
        border-bottom: 1px solid var(--glass-border);
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding: 120px 20px 80px;
    }

    .hero-image-container {
        max-width: 280px;
    }

    .section {
        padding: 60px 0;
    }

    .about-content .glass-card {
        padding: 25px;
    }

    .skill-card {
        padding: 25px;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .typewriter-container {
        font-size: 0.9rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.8rem;
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .social-links {
        flex-wrap: wrap;
    }
}