/* ============================================================
   PORTFOLIO — Muh Alfarid Jufda
   Modern, Interactive, Dark-first Design
   ============================================================ */

/* ========== CSS VARIABLES ========== */
:root {
    /* Dark Theme (default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a2e;
    --bg-card-hover: #222240;
    --bg-glass: rgba(26, 26, 46, 0.7);
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --accent: #6c63ff;
    --accent-light: #8b83ff;
    --accent-dark: #4a42d4;
    --accent-glow: rgba(108, 99, 255, 0.3);
    --gradient-1: linear-gradient(135deg, #6c63ff 0%, #e942f5 100%);
    --gradient-2: linear-gradient(135deg, #6c63ff 0%, #00d4ff 100%);
    --gradient-3: linear-gradient(135deg, #e942f5 0%, #ff6b6b 100%);
    --border-color: rgba(108, 99, 255, 0.15);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(108, 99, 255, 0.2);
    --nav-height: 80px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Plus Jakarta Sans', 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

[data-theme="light"] {
    --bg-primary: #f8f8ff;
    --bg-secondary: #eeeef5;
    --bg-card: #ffffff;
    --bg-card-hover: #f0f0ff;
    --bg-glass: rgba(255, 255, 255, 0.85);
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a60;
    --text-muted: #8888a0;
    --border-color: rgba(108, 99, 255, 0.2);
    --border-subtle: rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 2px 10px rgba(108, 99, 255, 0.08);
    --shadow-md: 0 8px 30px rgba(108, 99, 255, 0.12);
    --shadow-lg: 0 20px 60px rgba(108, 99, 255, 0.15);
    --shadow-glow: 0 0 30px rgba(108, 99, 255, 0.1);
}

/* ========== RESET & BASE ========== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

::selection {
    background: var(--accent);
    color: #fff;
}

::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 10px;
}

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

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

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

/* ========== CURSOR GLOW ========== */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cursor-glow.active {
    opacity: 1;
}

@media (max-width: 768px) {
    .cursor-glow { display: none; }
}

/* ========== PRELOADER ========== */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

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

.preloader-code {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.code-bracket {
    color: var(--accent);
    font-weight: 600;
}

.code-text {
    color: var(--accent-light);
    min-width: 160px;
    text-align: left;
}

.code-cursor {
    color: var(--accent);
    animation: blink 0.7s infinite;
}

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

.preloader-bar {
    width: 260px;
    height: 4px;
    background: var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 auto;
}

.preloader-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--gradient-1);
    border-radius: 4px;
    transition: width 0.1s linear;
}

/* ========== UTILITY CLASSES ========== */
.text-gradient {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-accent {
    color: var(--accent);
}

.section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
    opacity: 0.7;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--gradient-1);
    margin: 0 auto 16px;
    border-radius: 4px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

.section-close {
    text-align: center;
    margin-top: 50px;
}

/* ========== NAVBAR ========== */
.navbar {
    padding: 16px 0;
    transition: var(--transition);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: transparent;
    border-bottom: 1px solid transparent;
    z-index: 1000;
}

.navbar.scrolled {
    padding: 10px 0;
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-sm);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.3rem;
}

.brand-icon {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 1.1rem;
    background: var(--accent-glow);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.brand-text {
    color: var(--text-primary);
}

.navbar-toggler {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
}

.navbar-toggler:focus {
    box-shadow: none;
}

.toggler-icon {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 24px;
}

.toggler-icon span {
    display: block;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.92rem;
    padding: 8px 16px !important;
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent) !important;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}

.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    margin-left: 12px;
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: rotate(20deg);
}

/* ========== HERO SECTION ========== */
.hero-section {
    position: relative;
    overflow: hidden;
    background: var(--bg-primary);
    min-height: 100vh;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(var(--border-subtle) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
    50% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
}

.hero-greeting {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 8px;
}

.hero-name {
    font-size: clamp(2.8rem, 7vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.hero-typed-wrapper {
    display: flex;
    align-items: center;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    margin-bottom: 20px;
    min-height: 40px;
}

.typed-prefix {
    color: var(--text-secondary);
}

.typed-text {
    color: var(--accent);
    font-weight: 600;
    font-family: var(--font-mono);
}

.typed-cursor {
    color: var(--accent);
    animation: blink 0.7s infinite;
    font-weight: 100;
    margin-left: 2px;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 550px;
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

/* Buttons */
.btn-glow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: var(--gradient-1);
    color: #fff;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-glow::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;
    z-index: -1;
}

.btn-glow:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--accent-glow);
    color: #fff;
}

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

.btn-outline-glow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline-glow:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-3px);
}

/* Stats */
.hero-stats {
    display: flex;
    gap: 40px;
}

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

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    display: block;
    line-height: 1;
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 500;
    margin-top: 4px;
    display: block;
}

/* Hero Visual - Code Window */
.hero-visual {
    position: relative;
    padding: 40px;
}

.code-window {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.code-window-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

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

.window-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }

.window-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.code-window-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.8;
    overflow-x: auto;
}

.code-window-body pre {
    margin: 0;
}

.code-keyword { color: #c678dd; }
.code-var { color: #e06c75; }
.code-prop { color: #e5c07b; }
.code-string { color: #98c379; }
.code-method { color: #61afef; }

/* Floating Badges */
.floating-badge {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--shadow-md);
    z-index: 2;
    white-space: nowrap;
}

.floating-badge i {
    color: var(--accent);
}

.badge-1 {
    top: 20px;
    right: 0;
    animation: float-badge 3s ease-in-out infinite;
}

.badge-2 {
    bottom: 60px;
    left: 0;
    animation: float-badge 3s ease-in-out infinite 0.5s;
}

.badge-3 {
    bottom: 10px;
    right: 30px;
    animation: float-badge 3s ease-in-out infinite 1s;
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 2;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 20px;
    margin: 0 auto 8px;
    position: relative;
}

.mouse-wheel {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 3px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: mouse-scroll 1.5s infinite;
}

@keyframes mouse-scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 22px; }
}

.scroll-indicator span {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

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

.about-image-wrapper {
    position: relative;
}

.about-image-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    aspect-ratio: 3/4;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-avatar {
    position: relative;
    z-index: 2;
}

.avatar-placeholder {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #fff;
    box-shadow: 0 0 40px var(--accent-glow);
}

.about-image-decor {
    position: absolute;
    border-radius: 50%;
    z-index: 1;
}

.decor-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: 10%;
    left: -20%;
    animation: float-badge 6s ease-in-out infinite;
}

.decor-2 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(233, 66, 245, 0.15) 0%, transparent 70%);
    bottom: 10%;
    right: -10%;
    animation: float-badge 5s ease-in-out infinite 1s;
}

.about-info-float {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 3;
}

.info-float-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    box-shadow: var(--shadow-md);
}

.about-subtitle {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.about-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 28px;
    padding: 28px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.detail-value {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* ========== SKILLS SECTION ========== */
.skills-filter {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.88rem;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-color);
    box-shadow: var(--shadow-glow);
}

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

.skill-card.hidden-card {
    display: none;
}

.skill-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.6rem;
    color: var(--accent);
    transition: var(--transition);
}

.skill-card:hover .skill-icon-wrapper {
    background: var(--accent);
    color: #fff;
    transform: scale(1.1) rotate(5deg);
}

.skill-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.skill-bar {
    height: 6px;
    background: var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 10px;
}

.skill-bar-fill {
    height: 100%;
    background: var(--gradient-1);
    border-radius: 6px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.skill-level {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

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

.project-showcase {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 40px;
    transition: var(--transition);
}

.project-showcase:hover {
    border-color: var(--border-color);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.project-preview {
    padding: 30px;
    height: 100%;
    display: flex;
    align-items: center;
}

.project-browser {
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
}

.browser-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-subtle);
}

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

.browser-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
    opacity: 0.4;
}

.browser-dots span:first-child { background: #ff5f57; opacity: 1; }
.browser-dots span:nth-child(2) { background: #ffbd2e; opacity: 1; }
.browser-dots span:last-child { background: #28c840; opacity: 1; }

.browser-url {
    flex: 1;
    background: var(--bg-card);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.browser-url i {
    color: #28c840;
    font-size: 0.7rem;
}

.browser-body {
    min-height: 250px;
    position: relative;
    overflow: hidden;
}

/* Project Mockups */
.project-mockup {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, #1a472a 0%, #2d5a3e 50%, #1a472a 100%);
    display: flex;
    align-items: stretch;
}

.mockup-dark {
    background: linear-gradient(135deg, #1a1a2e 0%, #2d2d44 50%, #1a1a2e 100%);
}

.mockup-purple {
    background: linear-gradient(135deg, #2d1b69 0%, #4a2d8e 50%, #2d1b69 100%);
}

.mockup-green {
    background: linear-gradient(135deg, #0d3b2e 0%, #1a6b4a 50%, #0d3b2e 100%);
}

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

.mockup-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: rgba(0,0,0,0.2);
}

.mockup-logo {
    font-size: 0.85rem;
    font-weight: 600;
    color: #fff;
}

.mockup-nav-links {
    display: flex;
    gap: 8px;
}

.mockup-nav-links span {
    width: 30px;
    height: 3px;
    background: rgba(255,255,255,0.3);
    border-radius: 3px;
}

.mockup-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    text-align: center;
}

.mockup-badge {
    font-size: 0.7rem;
    background: rgba(255,255,255,0.15);
    padding: 4px 14px;
    border-radius: 20px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 10px;
    backdrop-filter: blur(5px);
}

.mockup-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.mockup-subtitle {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
    margin-bottom: 12px;
}

.mockup-btn {
    font-size: 0.7rem;
    background: var(--accent);
    color: #fff;
    padding: 6px 20px;
    border-radius: 20px;
    font-weight: 600;
}

/* Project Info */
.project-info {
    padding: 40px;
}

.project-number {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 800;
    color: var(--border-color);
    line-height: 1;
    display: block;
    margin-bottom: 12px;
}

.project-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.project-subtitle {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.93rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tech-tag {
    padding: 4px 14px;
    background: var(--accent-glow);
    color: var(--accent-light);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

.project-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.feature-item i {
    color: #4ade80;
    font-size: 0.9rem;
}

/* ========== EXPERIENCE / TIMELINE ========== */
.experience-section {
    background: var(--bg-primary);
}

.timeline {
    position: relative;
    max-width: 700px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -40px;
    top: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.8rem;
    z-index: 2;
    box-shadow: 0 0 20px var(--accent-glow);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--border-color);
    box-shadow: var(--shadow-glow);
    transform: translateX(8px);
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 10px;
    padding: 4px 12px;
    background: var(--accent-glow);
    border-radius: 50px;
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.timeline-company {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.timeline-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 14px;
    line-height: 1.7;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.timeline-tags span {
    padding: 3px 12px;
    background: var(--bg-primary);
    color: var(--text-muted);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border-subtle);
}

/* ========== EDUCATION SECTION ========== */
.education-section {
    background: var(--bg-secondary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.edu-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.edu-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-color);
    box-shadow: var(--shadow-glow);
}

.edu-card-accent {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-1);
}

.edu-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.edu-year {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 8px;
}

.edu-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.edu-place {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.edu-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.edu-highlight {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--accent-glow);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--accent-light);
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* ========== CONTACT SECTION ========== */
.contact-section {
    background: var(--bg-primary);
}

.contact-card-main {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.contact-card-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-1);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 36px;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.contact-info-item:hover {
    border-color: var(--border-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-info-item h5 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-info-item p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Contact Form */
.contact-form {
    margin-top: 10px;
}

.form-floating-custom {
    position: relative;
}

.form-floating-custom input,
.form-floating-custom textarea {
    width: 100%;
    padding: 16px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.92rem;
    transition: var(--transition);
    outline: none;
}

.form-floating-custom textarea {
    resize: vertical;
    min-height: 130px;
}

.form-floating-custom input:focus,
.form-floating-custom textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-floating-custom label {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
    transition: var(--transition);
}

.form-floating-custom textarea ~ label {
    top: 20px;
    transform: none;
}

.form-floating-custom input:focus ~ label,
.form-floating-custom input:not(:placeholder-shown) ~ label {
    top: -8px;
    left: 14px;
    font-size: 0.72rem;
    color: var(--accent);
    background: var(--bg-card);
    padding: 0 6px;
    transform: none;
}

.form-floating-custom textarea:focus ~ label,
.form-floating-custom textarea:not(:placeholder-shown) ~ label {
    top: -8px;
    left: 14px;
    font-size: 0.72rem;
    color: var(--accent);
    background: var(--bg-card);
    padding: 0 6px;
}

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

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

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.footer-quote {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 28px;
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.footer-line {
    width: 60px;
    height: 2px;
    background: var(--border-color);
    margin: 0 auto 20px;
}

.footer-copy {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ========== BACK TO TOP ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: 0 4px 20px var(--accent-glow);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

/* ========== PARTICLES ========== */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    animation: particle-float linear infinite;
}

@keyframes particle-float {
    0% {
        opacity: 0;
        transform: translateY(100vh) rotate(0deg);
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) rotate(360deg);
    }
}

/* ========== TILT EFFECT ========== */
.tilt-element {
    transition: transform 0.1s ease;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 991.98px) {
    .section { padding: 80px 0; }
    .navbar-collapse {
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--border-subtle);
        border-radius: var(--radius-md);
        margin-top: 12px;
        padding: 16px;
    }
    .nav-link.active::after { display: none; }
    .theme-toggle { margin: 12px 0 0; }
    .hero-stats { gap: 24px; }
    .about-details { grid-template-columns: 1fr; }
    .project-info { padding: 24px; }
    .project-preview { padding: 20px; }
}

@media (max-width: 767.98px) {
    .hero-name { font-size: 2.5rem; }
    .hero-actions { flex-direction: column; }
    .hero-stats { flex-wrap: wrap; justify-content: center; }
    .about-info-float { flex-direction: column; align-items: center; }
    .project-features { grid-template-columns: 1fr; }
    .contact-info-grid { grid-template-columns: 1fr; }
    .education-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
}

@media (max-width: 575.98px) {
    .section { padding: 60px 0; }
    .section-header { margin-bottom: 40px; }
    .hero-badge { font-size: 0.75rem; padding: 6px 14px; }
    .project-showcase .row { flex-direction: column !important; }
    .btn-glow, .btn-outline-glow { width: 100%; justify-content: center; }
    .contact-card-main { padding: 20px; }
    .timeline { padding-left: 30px; }
    .timeline::before { left: 10px; }
    .timeline-dot { left: -30px; width: 24px; height: 24px; font-size: 0.6rem; }
}

/* ========== ANIMATIONS ========== */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========== FORM SUCCESS STATE ========== */
.form-success {
    text-align: center;
    padding: 40px;
}

.form-success i {
    font-size: 3rem;
    color: #4ade80;
    margin-bottom: 16px;
}

.form-success h4 {
    font-weight: 700;
    margin-bottom: 8px;
}

.form-success p {
    color: var(--text-secondary);
}

/* ========== SMOOTH SECTION TRANSITIONS ========== */
.section::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--border-subtle);
}

/* ========== SKIP TO CONTENT (Accessibility) ========== */
.skip-to-content {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    padding: 12px 28px;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 100001;
    transition: top 0.3s ease;
    text-decoration: none;
}

.skip-to-content:focus {
    top: 0;
    color: #fff;
}

/* ========== PRELOADER SKIP BUTTON ========== */
.preloader-skip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 24px;
    padding: 8px 20px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    border-radius: 50px;
    font-family: var(--font-main);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    animation: fade-in-skip 0.5s ease 1.5s forwards;
}

.preloader-skip:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-glow);
}

.preloader-skip i {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.preloader-skip:hover i {
    transform: translateX(3px);
}

@keyframes fade-in-skip {
    to { opacity: 1; }
}

/* ========== PAGE TRANSITION OVERLAY ========== */
.page-transition {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent);
    z-index: 99998;
    transform: scaleY(0);
    transform-origin: bottom;
    pointer-events: none;
    transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1);
}

.page-transition.active {
    transform: scaleY(1);
    transform-origin: top;
}

/* ========== CV DOWNLOAD BUTTON ========== */
.btn-cv-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: var(--accent);
    font-weight: 600;
    border: 2px solid var(--accent);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    font-family: var(--font-main);
}

.btn-cv-download::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    transition: left 0.4s ease;
    z-index: -1;
}

.btn-cv-download:hover {
    color: #fff;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--accent-glow);
}

.btn-cv-download:hover::before {
    left: 0;
}

.btn-cv-download i {
    font-size: 1.1rem;
}

/* ========== PROJECT ACTION BUTTONS ========== */
.project-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.btn-project-demo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--gradient-1);
    color: #fff;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-project-demo:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--accent-glow);
    color: #fff;
}

.btn-project-code {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-project-code:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
    transform: translateY(-3px);
}

/* ========== ACHIEVEMENTS SECTION ========== */
.achievements-section {
    background: var(--bg-primary);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.achievement-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.achievement-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.4s ease;
}

.achievement-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-color);
    box-shadow: var(--shadow-glow);
}

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

.achievement-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: #fff;
    box-shadow: 0 8px 30px var(--accent-glow);
}

.achievement-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.achievement-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.achievement-meta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    background: var(--accent-glow);
    color: var(--accent-light);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* ========== AVATAR SVG ========== */
.avatar-svg {
    width: 100%;
    height: 100%;
}

.avatar-placeholder {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    box-shadow: 0 0 60px var(--accent-glow);
    border: 3px solid var(--border-color);
    transition: var(--transition);
}

.avatar-placeholder:hover {
    border-color: var(--accent);
    box-shadow: 0 0 80px var(--accent-glow);
    transform: scale(1.05);
}

.avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* ========== FORM STATUS ========== */
.form-status {
    margin-top: 16px;
    padding: 0;
    text-align: center;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
    max-height: 0;
    overflow: hidden;
}

.form-status.show {
    padding: 14px 20px;
    max-height: 80px;
}

.form-status.success {
    background: rgba(74, 222, 128, 0.1);
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.form-status.error {
    background: rgba(255, 95, 87, 0.1);
    color: #ff5f57;
    border: 1px solid rgba(255, 95, 87, 0.3);
}

/* ========== FOCUS STYLES (Accessibility) ========== */
*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

.btn-glow:focus-visible,
.btn-outline-glow:focus-visible,
.btn-cv-download:focus-visible,
.btn-project-demo:focus-visible,
.btn-project-code:focus-visible {
    box-shadow: 0 0 0 4px var(--accent-glow), 0 10px 30px var(--accent-glow);
}

.nav-link:focus-visible {
    outline-offset: 6px;
}

.social-link:focus-visible {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    transform: translateY(-4px);
}

/* ========== RESPONSIVE ADDITIONS ========== */
@media (max-width: 767.98px) {
    .achievements-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
    .project-actions {
        flex-direction: column;
    }
    .btn-project-demo,
    .btn-project-code {
        justify-content: center;
        width: 100%;
    }
    .btn-cv-download {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 575.98px) {
    .achievements-grid {
        grid-template-columns: 1fr;
    }
}