/* ============================================
   JOAS ANTONIO DOS SANTOS - PORTFOLIO
   Cybersecurity Leader & Researcher
   ============================================ */

/* CSS Variables */
:root {
    --primary: #00f0ff;
    --primary-dark: #00b4cc;
    --secondary: #ff0066;
    --accent: #7b2fff;
    --accent-light: #a855f7;
    --bg-dark: #0a0a0f;
    --bg-card: #111118;
    --bg-card-hover: #1a1a25;
    --text-primary: #e4e4e7;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border: #1f1f2e;
    --glow-primary: rgba(0, 240, 255, 0.3);
    --glow-secondary: rgba(255, 0, 102, 0.3);
    --glow-accent: rgba(123, 47, 255, 0.3);
    --gradient-1: linear-gradient(135deg, #00f0ff, #7b2fff);
    --gradient-2: linear-gradient(135deg, #ff0066, #ff6b35);
    --gradient-3: linear-gradient(135deg, #7b2fff, #00f0ff);
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-dark);
}

html::-webkit-scrollbar {
    width: 6px;
}

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

html::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    font-size: 16px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

/* ============================================
   PRELOADER
   ============================================ */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.cyber-loader {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader-ring {
    position: absolute;
    border: 2px solid transparent;
    border-radius: 50%;
    animation: loaderSpin 1.5s linear infinite;
}

.loader-ring:nth-child(1) {
    width: 100%;
    height: 100%;
    border-top-color: var(--primary);
    border-bottom-color: var(--primary);
}

.loader-ring:nth-child(2) {
    width: 75%;
    height: 75%;
    border-left-color: var(--secondary);
    border-right-color: var(--secondary);
    animation-direction: reverse;
    animation-duration: 1s;
}

.loader-ring:nth-child(3) {
    width: 50%;
    height: 50%;
    border-top-color: var(--accent);
    animation-duration: 0.75s;
}

.loader-text {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--primary);
    letter-spacing: 2px;
    animation: loaderPulse 1s ease-in-out infinite;
}

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

@keyframes loaderPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* ============================================
   PARTICLES & MATRIX CANVAS
   ============================================ */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.04;
}

/* ============================================
   CURSOR TRAIL
   ============================================ */
#cursor-trail {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 1px solid var(--primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease, opacity 0.3s ease;
    mix-blend-mode: difference;
    opacity: 0;
}

#cursor-trail.visible {
    opacity: 1;
}

/* ============================================
   NAVIGATION
   ============================================ */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
}

#navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.6rem 2rem;
    border-bottom: 1px solid var(--border);
}

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

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo-bracket {
    color: var(--primary);
    font-weight: 400;
}

.logo-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--text-secondary);
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: width 0.3s ease;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
}

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

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

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

/* ============================================
   HERO SECTION
   ============================================ */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 6rem 2rem 2rem;
    overflow: hidden;
}

.hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(5deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(5deg) translateY(50px); }
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--primary);
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    animation: fadeInDown 0.8s ease forwards;
    background: rgba(0, 240, 255, 0.05);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: #00ff88;
    border-radius: 50%;
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.4); }
    50% { opacity: 0.6; box-shadow: 0 0 0 6px rgba(0, 255, 136, 0); }
}

/* Glitch Effect */
.glitch-wrapper {
    margin-bottom: 1.5rem;
}

.glitch {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    color: var(--text-primary);
    position: relative;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.glitch:hover::before {
    animation: glitch-1 0.3s linear infinite;
    color: var(--primary);
    opacity: 0.7;
    clip-path: polygon(0 0, 100% 0, 100% 33%, 0 33%);
}

.glitch:hover::after {
    animation: glitch-2 0.3s linear infinite;
    color: var(--secondary);
    opacity: 0.7;
    clip-path: polygon(0 66%, 100% 66%, 100% 100%, 0 100%);
}

@keyframes glitch-1 {
    0% { transform: translate(0); }
    20% { transform: translate(-3px, 3px); }
    40% { transform: translate(-3px, -3px); }
    60% { transform: translate(3px, 3px); }
    80% { transform: translate(3px, -3px); }
    100% { transform: translate(0); }
}

@keyframes glitch-2 {
    0% { transform: translate(0); }
    20% { transform: translate(3px, -3px); }
    40% { transform: translate(3px, 3px); }
    60% { transform: translate(-3px, -3px); }
    80% { transform: translate(-3px, 3px); }
    100% { transform: translate(0); }
}

.glitch-sub {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

/* Typewriter */
.typewriter-container {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.typewriter-prefix {
    color: var(--secondary);
    margin-right: 0.3rem;
}

.typewriter-cursor {
    animation: cursorBlink 0.8s step-end infinite;
    color: var(--primary);
    font-weight: 700;
}

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

.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

/* Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(17, 17, 24, 0.5);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-item:hover {
    border-color: rgba(0, 240, 255, 0.3);
    background: rgba(0, 240, 255, 0.05);
    transform: translateY(-3px);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    display: inline;
}

.stat-plus {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.3rem;
    font-family: var(--font-mono);
}

/* Hero Buttons */
.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1.2s;
    opacity: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--bg-dark);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 30px var(--glow-primary);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 240, 255, 0.05);
    transform: translateY(-2px);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 1px;
    background: transparent;
    color: var(--primary);
    border: 1px solid rgba(0, 240, 255, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-outline:hover {
    background: rgba(0, 240, 255, 0.1);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 240, 255, 0.15);
}

.btn-svg {
    width: 18px;
    height: 18px;
}

/* Hero Right - Photo */
.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 1s ease forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

.photo-container {
    position: relative;
    width: 350px;
    height: 350px;
}

.photo-hexagon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 250px;
    height: 250px;
}

.photo-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    z-index: 2;
    border: 3px solid var(--primary);
    box-shadow: 0 0 30px var(--glow-primary), inset 0 0 30px rgba(0, 240, 255, 0.1);
}

.photo-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #111118, #1a1a25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--bg-card), var(--bg-card-hover));
    color: var(--primary);
}

.hex-border {
    position: absolute;
    top: -8px;
    left: -8px;
    width: calc(100% + 16px);
    height: calc(100% + 16px);
    border-radius: 50%;
    border: 1px solid rgba(0, 240, 255, 0.2);
    animation: rotateBorder 10s linear infinite;
    border-top-color: var(--primary);
    border-right-color: transparent;
}

.hex-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    width: calc(100% + 40px);
    height: calc(100% + 40px);
    border-radius: 50%;
    background: radial-gradient(circle, var(--glow-primary) 0%, transparent 70%);
    animation: glowPulse 3s ease-in-out infinite;
    z-index: 0;
}

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

@keyframes glowPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

/* Orbit Rings */
.orbit-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(0, 240, 255, 0.1);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 {
    width: 300px;
    height: 300px;
    animation: orbit 15s linear infinite;
}

.orbit-2 {
    width: 340px;
    height: 340px;
    animation: orbit 20s linear infinite reverse;
}

.orbit-3 {
    width: 380px;
    height: 380px;
    animation: orbit 25s linear infinite;
}

.orbit-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 10px var(--primary);
}

.orbit-2 .orbit-dot {
    background: var(--secondary);
    box-shadow: 0 0 10px var(--secondary);
}

.orbit-3 .orbit-dot {
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

@keyframes orbit {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Floating Badges */
.floating-badges {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.floating-badge {
    position: absolute;
    padding: 0.3rem 0.8rem;
    background: rgba(17, 17, 24, 0.9);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--primary);
    letter-spacing: 1px;
    white-space: nowrap;
    z-index: 3;
    animation: floatBadge 6s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

.fb-1 { top: 10%; right: -10%; animation-delay: 0s; }
.fb-2 { bottom: 15%; right: -5%; animation-delay: 1.5s; }
.fb-3 { top: 5%; left: -5%; animation-delay: 3s; }
.fb-4 { bottom: 10%; left: -10%; animation-delay: 4.5s; border-color: rgba(255, 215, 0, 0.3); color: #ffd700; }

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 2px;
    animation: fadeInUp 1s ease forwards 2s, bounce 2s ease-in-out infinite 2s;
    opacity: 0;
}

.mouse {
    width: 22px;
    height: 34px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse-wheel {
    width: 3px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: mouseScroll 1.5s ease-in-out infinite;
}

@keyframes mouseScroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-8px); }
}

/* ============================================
   SECTIONS GENERAL
   ============================================ */
.section {
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3.5vw, 3rem);
    font-weight: 800;
    letter-spacing: 3px;
    position: relative;
    display: inline-block;
}

.glitch-hover {
    position: relative;
}

.glitch-hover::before,
.glitch-hover::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.glitch-hover:hover::before {
    animation: glitch-1 0.3s linear infinite;
    color: var(--primary);
    opacity: 0.5;
}

.glitch-hover:hover::after {
    animation: glitch-2 0.3s linear infinite;
    color: var(--secondary);
    opacity: 0.5;
}

.section-line {
    width: 80px;
    height: 3px;
    background: var(--gradient-1);
    margin: 1rem auto 0;
    border-radius: 2px;
    position: relative;
}

.section-line::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    filter: blur(8px);
    transform: translateY(-50%);
}

.section-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

.cyber-link {
    color: var(--primary);
    border-bottom: 1px dashed var(--primary);
    transition: all 0.3s ease;
}

.cyber-link:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px var(--primary);
}

.section-footer {
    text-align: center;
    margin-top: 4rem;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}

/* Terminal Window */
.terminal-window {
    background: #0d0d12;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    background: #161620;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
}

.terminal-line {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.terminal-line .prompt {
    color: var(--primary);
    margin-right: 0.5rem;
    font-weight: 700;
}

.terminal-line strong {
    color: var(--text-primary);
}

.blink-line .cursor-blink {
    animation: cursorBlink 1s step-end infinite;
    color: var(--primary);
}

/* Info Cards */
.about-cards {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.info-card:hover {
    border-color: rgba(0, 240, 255, 0.2);
    transform: translateX(5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

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

.card-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
    margin-bottom: 0.8rem;
}

.card-icon svg {
    width: 100%;
    height: 100%;
}

.info-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    padding: 0.25rem 0.6rem;
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.15);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--primary);
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(0, 240, 255, 0.15);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.achievements-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.achievement {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.achievement-num {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    min-width: 50px;
}

/* ============================================
   SKILLS SECTION
   ============================================ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.skill-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--glow-primary) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.skill-card:hover {
    border-color: rgba(0, 240, 255, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px var(--glow-primary);
}

.skill-card:hover::after {
    opacity: 0.1;
}

.skill-icon-wrapper {
    position: relative;
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
}

.skill-icon {
    width: 100%;
    height: 100%;
    color: var(--primary);
    position: relative;
    z-index: 1;
}

.skill-icon svg {
    width: 100%;
    height: 100%;
}

.skill-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 1px solid rgba(0, 240, 255, 0.2);
    animation: skillPulse 2s ease-in-out infinite;
}

@keyframes skillPulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    100% { transform: translate(-50%, -50%) scale(1.8); opacity: 0; }
}

.skill-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    letter-spacing: 1px;
    margin-bottom: 0.8rem;
    position: relative;
    z-index: 1;
}

.skill-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ============================================
   REPOS SECTION
   ============================================ */
.repos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.repo-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.repo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.repo-card:hover {
    border-color: rgba(0, 240, 255, 0.2);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.repo-card:hover::before {
    transform: scaleX(1);
}

.repo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.8rem;
}

.repo-icon {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
}

.repo-stars {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #ffd700;
}

.repo-stars svg {
    color: #ffd700;
    fill: #ffd700;
}

.repo-name {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

.repo-card:hover .repo-name {
    text-shadow: 0 0 10px var(--glow-primary);
}

.repo-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    flex: 1;
}

.repo-footer {
    margin-top: 1rem;
    display: flex;
    align-items: center;
}

.repo-lang {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.lang-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.repos-cta {
    text-align: center;
    margin-top: 2.5rem;
}

/* ============================================
   PUBLICATIONS SECTION
   ============================================ */
.pub-category {
    margin-bottom: 3rem;
}

.pub-category-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    letter-spacing: 1px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border);
}

.pub-category-title svg {
    color: var(--primary);
}

/* Books Grid */
.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.book-card {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.book-card:hover {
    border-color: rgba(0, 240, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.book-spine {
    width: 5px;
    background: var(--gradient-1);
    flex-shrink: 0;
}

.book-card:nth-child(even) .book-spine {
    background: var(--gradient-2);
}

.book-card:nth-child(3n) .book-spine {
    background: var(--gradient-3);
}

.book-content {
    padding: 1rem;
    flex: 1;
}

.book-content h4 {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.book-tag {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--primary);
    padding: 0.15rem 0.5rem;
    background: rgba(0, 240, 255, 0.08);
    border-radius: 3px;
    letter-spacing: 0.5px;
}

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

/* Magazine Grid */
.magazine-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.magazine-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.magazine-name {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.magazine-articles {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.magazine-articles::-webkit-scrollbar {
    width: 3px;
}

.magazine-articles::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 2px;
}

.magazine-link {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.5rem 0.8rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    border-left: 2px solid transparent;
}

.magazine-link:hover {
    background: rgba(0, 240, 255, 0.05);
    color: var(--primary);
    border-left-color: var(--primary);
    padding-left: 1.2rem;
}

.academic-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    max-width: 600px;
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    display: block;
}

.project-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, var(--glow-accent) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.project-card:hover .project-glow {
    opacity: 0.15;
}

.project-card:hover {
    border-color: rgba(123, 47, 255, 0.3);
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.project-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-light);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.project-icon svg {
    width: 100%;
    height: 100%;
}

.project-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.project-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.project-link-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-light);
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.project-card:hover .project-link-text {
    color: var(--primary);
    letter-spacing: 3px;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
    transition: all 0.3s ease;
}

.contact-item:hover {
    border-color: rgba(0, 240, 255, 0.3);
    background: rgba(0, 240, 255, 0.03);
    transform: translateX(5px);
}

.contact-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    color: var(--primary);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.top-voice-badge {
    padding: 0.1rem 0.4rem;
    background: linear-gradient(135deg, #ffd700, #ff8c00);
    color: #000;
    border-radius: 3px;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    animation: goldShine 3s ease-in-out infinite;
}

@keyframes goldShine {
    0%, 100% { box-shadow: 0 0 5px rgba(255, 215, 0, 0.3); }
    50% { box-shadow: 0 0 15px rgba(255, 215, 0, 0.6); }
}

.contact-value {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-top: 0.2rem;
}

/* Cyber Globe */
.cyber-globe {
    width: 300px;
    height: 300px;
    position: relative;
    margin: 0 auto;
}

.globe-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0, 240, 255, 0.15);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 {
    width: 100%;
    height: 100%;
    animation: globeRotate1 12s linear infinite;
    border-top-color: var(--primary);
    border-bottom-color: transparent;
}

.ring-2 {
    width: 80%;
    height: 80%;
    animation: globeRotate2 8s linear infinite reverse;
    border-left-color: var(--secondary);
    border-right-color: transparent;
    transform: translate(-50%, -50%) rotateX(60deg);
}

.ring-3 {
    width: 60%;
    height: 60%;
    animation: globeRotate1 15s linear infinite;
    border-top-color: var(--accent);
    border-bottom-color: transparent;
    transform: translate(-50%, -50%) rotateY(60deg);
}

@keyframes globeRotate1 {
    to { transform: translate(-50%, -50%) rotateZ(360deg); }
}

@keyframes globeRotate2 {
    to { transform: translate(-50%, -50%) rotateX(60deg) rotateZ(360deg); }
}

.globe-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
}

.globe-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    text-shadow: 0 0 20px var(--glow-primary);
}

.globe-dot {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary), 0 0 20px var(--glow-primary);
    animation: dotFloat 4s ease-in-out infinite;
}

.dot-1 { top: 60%; left: 30%; animation-delay: 0s; }
.dot-2 { top: 25%; left: 55%; animation-delay: 0.8s; }
.dot-3 { top: 40%; right: 15%; animation-delay: 1.6s; }
.dot-4 { bottom: 30%; right: 25%; animation-delay: 2.4s; background: var(--secondary); box-shadow: 0 0 10px var(--secondary); }
.dot-5 { bottom: 20%; left: 40%; animation-delay: 3.2s; background: var(--accent); box-shadow: 0 0 10px var(--accent); }

@keyframes dotFloat {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.5); opacity: 1; }
}

/* ============================================
   FOOTER
   ============================================ */
#footer {
    border-top: 1px solid var(--border);
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
}

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

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px var(--glow-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-tagline {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
    letter-spacing: 1px;
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal-up,
.reveal-left,
.reveal-right {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-up {
    transform: translateY(40px);
}

.reveal-left {
    transform: translateX(-40px);
}

.reveal-right {
    transform: translateX(40px);
}

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
    opacity: 1;
    transform: translate(0);
}

/* General animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-right {
        order: -1;
    }

    .photo-container {
        width: 280px;
        height: 280px;
    }

    .photo-hexagon {
        width: 200px;
        height: 200px;
    }

    .orbit-1 { width: 240px; height: 240px; }
    .orbit-2 { width: 270px; height: 270px; }
    .orbit-3 { width: 300px; height: 300px; }

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

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

    .repos-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .cyber-globe {
        display: none;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        gap: 2rem;
        transition: right 0.4s ease;
        border-left: 1px solid var(--border);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-link {
        font-size: 1rem;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

    .floating-badge {
        display: none;
    }

    #cursor-trail {
        display: none;
    }

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

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

@media (max-width: 480px) {
    .section {
        padding: 4rem 1rem;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }

    .stat-number {
        font-size: 1.4rem;
    }

    .glitch {
        font-size: 2rem;
    }

    .glitch-sub {
        font-size: 1.2rem;
    }

    .photo-container {
        width: 220px;
        height: 220px;
    }

    .photo-hexagon {
        width: 160px;
        height: 160px;
    }

    .book-links {
        flex-direction: column;
    }
}