/* =========================================
   Modern UI/UX Design System (2025/2026)
   ========================================= */

:root {
    /* Light Theme Palette */
    --bg-main: #f0f4f8;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-card: rgba(255, 255, 255, 0.9);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: rgba(15, 23, 42, 0.1);
    
    /* Brand Colors (AI Vibe: Cyan & Purple) */
    --accent-1: #04c37f;
    --accent-2: #30bcc9;
    --accent-3: #ec4899;
    --gradient-brand: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    
    --glow-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
    --box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    /* Deep Dark Cyberpunk/AI Theme */
    --bg-main: #050505;
    --bg-glass: rgba(10, 10, 12, 0.6);
    --bg-card: rgba(18, 18, 20, 0.8);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.08);
    
    --accent-1: #04c37f;
    --accent-2: #30bcc9;
    --gradient-brand: linear-gradient(135deg, #30bcc9, #12b880, #04c37f);
    
    --glow-shadow: 0 0 30px rgba(79, 172, 254, 0.4);
    --box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* =========================================
   Global, Typography & Strict Reset
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    max-width: 100vw;
    overflow-x: hidden !important; /* جلوگیری قطعی از اسکرول افقی در موبایل */
    font-family: 'Vazirmatn', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.7;
    transition: background-color 0.5s ease;
}

/* اعمال صریح فونت وزیر به تمامی المان‌هایی که فونت پیش‌فرض سیستم را می‌گیرند */
button, input, textarea, select, a {
    font-family: 'Vazirmatn', sans-serif;
}

@media (pointer: fine) {
    * {
        cursor: none !important;
    }
}

.en-text {
    font-family: 'Poppins', sans-serif !important;
    display: inline-block;
}

.font-bold {
    font-weight: 700;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: 100px 0 10px 0;
    overflow: hidden; /* جلوگیری از بیرون زدگی محتوا */
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 60px;
    text-align: center;
}

.text-muted {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mt-4 {
    margin-top: 1.5rem;
}

.w-100 {
    width: 100%;
}

/* =========================================
   Modern Effects (Noise, Gradients, Glass)
   ========================================= */
.noise-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.04;
    background: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
}

.gradient-text {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    box-shadow: var(--box-shadow);
}

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    width: 0%;
    background: var(--gradient-brand);
    z-index: 10001;
    transition: width 0.1s ease;
}

/* =========================================
   Custom Cursor
   ========================================= */
.cursor-dot, 
.cursor-outline {
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    z-index: 20000;
    pointer-events: none;
}

.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-1);
}

.cursor-outline {
    width: 40px;
    height: 40px;
    border: 1px solid var(--accent-2);
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

/* =========================================
   Header & Nav
   ========================================= */
.header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1100px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 40px;
    z-index: 1000;
    transition: all 0.4s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    padding: 0 30px;
}

.logo {
    font-size: 1.5rem;
    font-family: 'Poppins', sans-serif !important;
    font-weight: 800;
}

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

.nav-item {
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

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

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    padding: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
    font-family: none;
    line-height: 1.2;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    z-index: 9999;
    padding: 40px 30px;
    transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    border-left: 1px solid var(--border-color);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}

.close-menu-btn {
    position: absolute;
    top: 25px;
    left: 25px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;
}

.mobile-nav-item {
    font-size: 1.2rem;
    font-weight: 600;
    display: block;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

/* Mobile Menu English */
.mobile-menu-en {
    position: fixed;
    top: 0;
    left: -100%;
    width: 300px;
    height: 100vh;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    z-index: 9999;
    padding: 40px 30px;
    transition: left 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    border-right: 1px solid var(--border-color);
}

.mobile-menu-en.active {
    left: 0;
}

.mobile-menu-en-overlay {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s;
}

.mobile-menu-en-overlay.active {
    opacity: 1;
    visibility: visible;
}

.close-menu-en-btn {
    position: absolute;
    top: 25px;
    right: 25px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-nav-en-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 40px;
}

.mobile-nav-en-item {
    font-size: 1.2rem;
    font-weight: 600;
    display: block;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-glow {
    background: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-glow:hover {
    border-color: var(--accent-1);
    box-shadow: var(--glow-shadow);
}

.btn-primary {
    background: var(--gradient-brand);
    color: #fff;
    box-shadow: var(--glow-shadow);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 120px;
}

.glow-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    z-index: -1;
    opacity: 0.5;
    animation: floatBlob 10s infinite alternate ease-in-out;
}

.blob-1 {
    width: 400px;
    height: 400px;
    background: var(--accent-1);
    top: 10%;
    right: 10%;
}

.blob-2 {
    width: 350px;
    height: 350px;
    background: var(--accent-2);
    bottom: 10%;
    left: 5%;
    animation-delay: -5s;
}

@keyframes floatBlob {
    0% {
        transform: translate(0, 0) scale(1);
    }
    100% {
        transform: translate(50px, 50px) scale(1.2);
    }
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    border-radius: 20px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: var(--accent-2);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 10px #10b981;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }
}

.name {
    font-size: 3.7rem;
    line-height: 1.2;
    margin-bottom: 10px;
}

.role {
    font-size: 2.5rem;
    margin-bottom: 25px;
    min-height: 60px;
}

.cursor {
    color: var(--accent-1);
    animation: blink 1s infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.bio {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 550px;
}

.highlight-bg {
    background: rgba(59, 130, 246, 0.15);
    padding: 0 8px;
    border-radius: 6px;
    color: var(--accent-1);
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    align-items: center;
    gap: 30px;
}

.social-hero {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.social-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    font-size: 1.2rem;
    transition: all 0.3s;
}

.social-icon:hover {
    background: var(--accent-1);
    color: #fff;
    border-color: var(--accent-1);
    transform: translateY(-3px);
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
}

.image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 40px;
    filter: grayscale(20%);
    box-shadow: var(--glow-shadow);
}

.tech-float {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--accent-1);
    box-shadow: var(--box-shadow);
    animation: float 4s ease-in-out infinite alternate;
}

.float-1 {
    top: -10px;
    right: -20px;
    animation-delay: 0s;
}

.float-2 {
    bottom: 40px;
    left: -30px;
    animation-delay: 1s;
}

.float-3 {
    bottom: -10px;
    right: -20px;
    animation-delay: 2s;
}

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

/* =========================================
   Bento Box 
   ========================================= */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.bento-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    padding: 35px;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s;
}

.bento-box:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: var(--glow-shadow);
}

.bento-large {
    grid-column: span 2;
    grid-row: span 2;
}

.bento-medium {
    grid-column: span 2;
    grid-row: span 1;
}

.bento-small {
    grid-column: span 1;
    grid-row: span 1;
}

.bento-icon-bg {
    position: absolute;
    top: -15px;
    left: -30px;
    font-size: 8rem;
    opacity: 0.05;
    color: var(--text-primary);
}

.bento-box h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.tech-tags span {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-family: 'Poppins', sans-serif !important;
}

.stat-box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.stat-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--accent-1);
    line-height: 1;
}

.map-box {
    padding: 0;
    background: url('https://via.placeholder.com/600x300/1e293b/334155?text=Map') center/cover;
}

.map-overlay {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0), transparent);
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-primary);
}

/* =========================================
   Services Section (NEW)
   ========================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    padding: 40px 30px;
    text-align: right;
    transition: transform 0.4s, border-color 0.4s;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-1);
    box-shadow: var(--glow-shadow);
}

.service-icon {
    width: 70px;
    height: 70px;
    border-radius: 20px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 25px;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* =========================================
   Skills Section (NEW)
   ========================================= */
.skills-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    padding: 50px;
}

.skills-title {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.skills-bars {
    display: flex;
    flex-direction: column;
    gap: 25px;
    justify-content: center;
}

.skill-item {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 1rem;
}

.progress-bg {
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    width: 0;
    background: var(--gradient-brand);
    border-radius: 10px;
    transition: width 1.5s cubic-bezier(0.1, 0.8, 0.2, 1);
}

/* =========================================
   Timeline (Experience)
   ========================================= */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-right: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    padding-right: 40px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: right;
}

.timeline-dot {
    position: absolute;
    right: -6px;
    top: 20px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-1);
    box-shadow: 0 0 15px var(--accent-1);
}

.timeline-content {
    padding: 30px;
    width: 100%;
}

.timeline-date {
    color: var(--accent-2);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

/* =========================================
   Timeline English (Experience)
   ========================================= */
.timeline-en {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 30px;
}

.timeline-en::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 2px;
    height: 100%;
    background: var(--border-color);
}

.timeline-en-item {
    position: relative;
    margin-bottom: 50px;
    padding-left: 40px;
}

.timeline-en-dot {
    position: absolute;
    left: -6px;
    top: 20px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent-1);
    box-shadow: 0 0 15px var(--accent-1);
}

.timeline-en-content {
    padding: 30px;
}

.timeline-en-date {
    color: var(--accent-2);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 10px;
    display: block;
}

/* =========================================
   Projects
   ========================================= */
.modern-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.modern-project-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 15px;
    transition: all 0.4s;
    overflow: hidden !important;
}

.modern-project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-shadow);
    border-color: var(--accent-1);
}

.project-image-box {
    position: relative;
    width: 100%;
    height: 280px;
    border-radius: 16px;
    overflow: hidden;
}

.project-image-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.modern-project-card:hover .project-image-box img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
}

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

.round-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #fff;
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transform: scale(0.5);
    transition: transform 0.4s;
}

.modern-project-card:hover .round-btn {
    transform: scale(1);
}

.project-details {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: 25px 15px 10px;
}

.project-name {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.project-desc {
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.project-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    flex-wrap: wrap;
}

.tech-pill {
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    font-family: 'Poppins', sans-serif !important;
}

.github-link {
    margin-right: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    direction: ltr;
}

/* =========================================
   Testimonials (NEW)
   ========================================= */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.testimonial-card {
    padding: 40px;
    position: relative;
}

.quote-icon {
    font-size: 3rem;
    color: var(--accent-1);
    opacity: 0.2;
    position: absolute;
    top: 30px;
    right: 30px;
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.client-info {
    display: flex;
    align-items: center;
    gap: 15px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.client-info img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.client-info h4 {
    font-size: 1rem;
    margin-bottom: 3px;
}

/* =========================================
   Footer & Contact Form
   ========================================= */
.modern-footer {
    border-top: 1px solid var(--border-color);
    position: relative;
    padding-bottom: 40px;
}

.huge-text {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 900;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.email-link {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    display: inline-block;
    margin-top: 30px;
    border-bottom: 2px solid var(--accent-1);
    padding-bottom: 5px;
}

.email-link:hover {
    color: var(--accent-1);
}

.footer-form {
    padding: 40px;
}

.input-container {
    position: relative;
    margin-bottom: 30px;
}

.input-container input, 
.input-container textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.input-container label {
    position: absolute;
    right: 0;
    top: 15px;
    color: var(--text-secondary);
    pointer-events: none;
    transition: all 0.3s;
}

.input-container input:focus, 
.input-container textarea:focus {
    border-bottom-color: var(--accent-1);
}

.input-container input:focus ~ label, 
.input-container input:not(:placeholder-shown) ~ label,
.input-container textarea:focus ~ label, 
.input-container textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    font-size: 0.8rem;
    color: var(--accent-1);
}

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

/* =========================================
   Reveal Animations
   ========================================= */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: 0.2s;
}

.reveal-delay-2 {
    transition-delay: 0.4s;
}

/* =========================================
   Mobile Responsiveness & Strict Overflow Fix
   ========================================= */
@media (max-width: 1200px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .bento-large, 
    .bento-medium {
        grid-column: span 2;
    }
    .bento-small {
        grid-column: span 1;
    }
    .edu-box {
        grid-column: span 3;
    }
}

@media (max-width: 992px) {
    .section {
        padding: 80px 0;
    }
    
    /* Strict Header Fix for Mobile */
    .header {
        width: calc(100% - 30px);
        padding: 5px 0;
    }
    .nav-container {
        padding: 0 15px;
    }
    .nav-links, 
    .hidden-mobile {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }

    .logo {
        font-size: 1.25rem;
    }
    .theme-btn {
        font-size: 1rem;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding-top: 40px;
    }
    .hero-text {
        order: 2;
    }
    .hero-visual {
        order: 1;
    }
    .hero-buttons {
        justify-content: center;
    }
    .bio {
        margin: 0 auto 40px auto;
    }
    
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-large, 
    .bento-medium, 
    .edu-box {
        grid-column: span 2;
    }
    
    .skills-wrapper {
        grid-template-columns: 1fr;
        padding: 30px;
    }
    .footer-grid {
        flex-direction: column;
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .huge-text, 
    .name {
        font-size: 2.6rem;
    }
    .role {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2.2rem;
        margin-bottom: 40px;
    }
    .image-wrapper {
        width: 300px;
        height: 300px;
    }
    
    .bento-grid, 
    .services-grid, 
    .modern-projects-grid, 
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    .bento-large, 
    .bento-medium, 
    .bento-small, 
    .edu-box {
        grid-column: span 1;
    }
    
    .timeline {
        padding-right: 20px;
    }
    .timeline-item {
        padding-right: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    .email-link {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .btn-large {
        width: 100%;
        justify-content: center;
    }
    .image-wrapper {
        width: 250px;
        height: 250px;
    }
    .tech-float {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
    .huge-text {
        font-size: 2.2rem;
    }
    .footer-form {
        padding: 25px;
    }
    .skill-info {
        flex-direction: column;
        gap: 5px;
    }
}

/* ───────────────────────────────────────
   Section Subtitle
─────────────────────────────────────── */
.section-subtitle {
    text-align: center;
    font-size: 1.05rem;
    margin-top: -40px;
    margin-bottom: 50px;
    opacity: 0.75;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ───────────────────────────────────────
   Bento Icon (Normal version, transparent bg)
─────────────────────────────────────── */
.bento-icon {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    display: block;
}

/* Neural Network Box Styles */
.nn-box {
    display: flex;
    flex-direction: column;
    padding: 25px;
    background: linear-gradient(180deg, var(--bg-card) 0%, rgba(10, 10, 12, 0.95) 100%);
}

.nn-header {
    margin-bottom: 15px;
    z-index: 2;
}

.canvas-container {
    flex-grow: 1;
    width: 100%;
    min-height: 150px;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
}

#neural-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: crosshair;
}

/* =========================================
   Live Terminal Box
   ========================================= */
.terminal-box {
    background: #0a0a0c !important; /* پس‌زمینه کاملا تاریک شبیه ترمینال */
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.1);
    height: 350px !important; /* ارتفاع ثابت */
}

.terminal-header {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.term-dots {
    display: flex;
    gap: 8px;
    margin-right: 15px;
}

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

.dot.close {
    background-color: #ff5f56;
}

.dot.min {
    background-color: #ffbd2e;
}

.dot.max {
    background-color: #27c93f;
}

.term-title {
    font-size: 0.8rem;
    color: #8b949e;
    font-family: monospace;
}

.terminal-body {
    padding: 20px;
    flex-grow: 1;
    overflow-y: auto;
    max-height: calc(100% - 45px); /* کم کردن ارتفاع هدر ترمینال */
    font-family: 'Courier New', Courier, monospace !important;
    font-size: 0.85rem;
    line-height: 1.6;
    color: #c9d1d9;
    position: relative;
    mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
}

/* شخصی‌سازی اسکرول‌بار ترمینال */
.terminal-body::-webkit-scrollbar {
    width: 6px;
}

.terminal-body::-webkit-scrollbar-track {
    background: transparent;
}

.terminal-body::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}

.term-line {
    margin-bottom: 4px;
    opacity: 0.9;
}

.term-line .keyword {
    color: #ff7b72;
}

.term-line .value {
    color: #79c0ff;
}

.term-line .success {
    color: #3fb950;
}

.term-line .warning {
    color: #d2a8ff;
}

.term-cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background-color: #c9d1d9;
    vertical-align: middle;
    animation: term-blink 1s step-end infinite;
}

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

/* =========================================
   Computer Vision Box Styles
   ========================================= */
.cv-box {
    background: #0d1117 !important;
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.cv-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 10;
}

.cv-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.live-dot {
    width: 8px;
    height: 8px;
    background-color: #ff5f56;
    border-radius: 50%;
    animation: pulse-red 1.5s infinite;
}

@keyframes pulse-red {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 95, 86, 0.7);
    }
    70% {
        box-shadow: 0 0 0 6px rgba(255, 95, 86, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 95, 86, 0);
    }
}

.cv-viewport {
    position: relative;
    flex-grow: 1;
    min-height: 200px;
    background-color: #050505;
    overflow: hidden;
}

/* شبکه پس‌زمینه (Grid) */
.cv-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.5;
}

/* خط اسکنر */
.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #00f2fe;
    box-shadow: 0 0 10px #00f2fe, 0 20px 20px rgba(0, 242, 254, 0.2);
    animation: scan 3s linear infinite;
    z-index: 5;
}

@keyframes scan {
    0% {
        top: -10%;
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        top: 110%;
        opacity: 0;
    }
}

/* استایل مربع‌های تشخیص (Bounding Boxes) */
.bounding-box {
    position: absolute;
    border: 2px solid;
    box-sizing: border-box;
    background: rgba(255, 255, 255, 0.05);
    transition: opacity 0.3s ease;
    z-index: 2;
    animation: pop-in 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.bb-label {
    position: absolute;
    top: -20px;
    left: -2px;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 0.7rem;
    color: #000;
    font-weight: bold;
    white-space: nowrap;
}

@keyframes pop-in {
    0% {
        transform: scale(0.9);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* =========================================
   Vector Space Box
   ========================================= */
.vector-box {
    background: #0f0f13 !important;
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    position: relative;
}

.vector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: transparent;
    position: absolute;
    width: 100%;
    top: 0;
    z-index: 10;
}

#vector-container {
    flex-grow: 1;
    min-height: 220px;
    background: radial-gradient(circle at center, #1a1a24 0%, #0f0f13 100%);
    overflow: hidden;
}

#vector-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* =========================================
   Fixes & New Sections (Added by Assistant)
   ========================================= */
.timeline-content {
    width: 100%;
}

/* استایل‌های بخش جدید مقالات (Publications) */
.publications-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    max-width: 900px;
    margin: 0 auto;
}

.publication-card {
    display: flex;
    gap: 25px;
    padding: 35px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(16px);
}

.publication-card:hover {
    transform: translateX(-15px); /* حرکت به سمت راست در حالت RTL */
    border-color: var(--accent-1);
    box-shadow: var(--glow-shadow);
}

.pub-icon {
    font-size: 3rem;
    color: var(--accent-1);
    opacity: 0.8;
    flex-shrink: 0;
}

.pub-content {
    flex-grow: 1;
}

.pub-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.pub-meta {
    font-size: 0.9rem;
    color: var(--accent-2);
    margin-bottom: 15px;
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.pub-meta span {
    background: rgba(139, 92, 246, 0.1);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.pub-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* رسپانسیو برای مقالات */
@media (max-width: 768px) {
    .publication-card {
        flex-direction: column;
        gap: 15px;
        padding: 25px;
    }
    .publication-card:hover {
        transform: translateY(-10px);
    }
}

/* =========================================
   Light Theme Overrides for Live Models
   ========================================= */

/* --- 1. Neural Network Box --- */
body:not([data-theme="dark"]) .nn-box {
    background: linear-gradient(180deg, #ffffff 0%, #f0f4f8 100%) !important;
}

body:not([data-theme="dark"]) .nn-box .canvas-container {
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.08) 0%, transparent 70%) !important;
}

/* --- 2. Live Terminal Box --- */
body:not([data-theme="dark"]) .terminal-box {
    background: #ffffff !important;
    border-color: var(--border-color) !important;
}

body:not([data-theme="dark"]) .terminal-header {
    background: #f8fafc !important;
    border-bottom: 1px solid var(--border-color) !important;
}

body:not([data-theme="dark"]) .terminal-body {
    color: #334155 !important;
    mask-image: linear-gradient(to bottom, black 60%, transparent 100%) !important;
    -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent 100%) !important;
}

body:not([data-theme="dark"]) .term-cursor {
    background-color: #334155 !important;
}

/* --- 3. Computer Vision Box --- */
body:not([data-theme="dark"]) .cv-box {
    background: #ffffff !important;
}

body:not([data-theme="dark"]) .cv-header {
    background: #f8fafc !important;
    border-bottom: 1px solid var(--border-color) !important;
}

body:not([data-theme="dark"]) .cv-viewport {
    background-color: #f0f4f8 !important;
}

body:not([data-theme="dark"]) .cv-grid {
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.15) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.15) 1px, transparent 1px) !important;
}

body:not([data-theme="dark"]) .bounding-box {
    background: rgba(59, 130, 246, 0.05) !important;
}

/* --- 4. Vector Space Box --- */
body:not([data-theme="dark"]) .vector-box {
    background: #ffffff !important;
}

body:not([data-theme="dark"]) #vector-container {
    background: radial-gradient(circle at center, #f8fafc 0%, #ffffff 100%) !important;
}

/* =========================================
   Custom Detail Modal Styles
   ========================================= */
.custom-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 10005;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    overflow-y: auto; 
    overscroll-behavior: contain; 
}

.custom-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.custom-modal-container {
    width: 90%;
    max-width: 650px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 40px 30px;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.custom-modal-overlay.active .custom-modal-container {
    transform: scale(1);
}

.custom-modal-close {
    position: absolute;
    top: 20px;
    left: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 10;
}

body:not([data-theme="dark"]) .custom-modal-close {
    background: rgba(0, 0, 0, 0.05);
}

.custom-modal-close:hover {
    background: var(--accent-1);
    color: #fff;
    border-color: var(--accent-1);
}

.custom-modal-body {
    display: flex;
    flex-direction: column;
    text-align: right;
}

.modal-image-wrapper {
    width: 100%;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    margin-top: 20px;
}

.modal-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* =========================================
   LTR Layout Fixes for Background Icons
   ========================================= */
/* منتقل کردن لوگوهای بک‌گراند به سمت راست در نسخه انگلیسی */
[dir="ltr"] .bento-icon-bg {
    left: auto;
    right: -20px;
}

/* منتقل کردن آیکون نقل‌قول کارت‌های رضایت مشتری به سمت چپ در نسخه انگلیسی */
[dir="ltr"] .quote-icon {
    right: auto;
    left: 30px;
}

/* ==========================================================================
   Dynamic Language Switching Overrides
   ========================================================================== */

/* مخفی کردن خودکار المان‌های انگلیسی زمانی که زبان سایت روی فارسی است */
html[lang="fa"] .lang-en {
    display: none !important;
}

/* مخفی کردن خودکار المان‌های فارسی زمانی که زبان سایت روی انگلیسی است */
html[lang="en"] .lang-fa {
    display: none !important;
}

/* اصلاح تراز دکمه بستن پاپ‌آپ‌ها در زبان انگلیسی (چپ‌چین) */
[dir="ltr"] .custom-modal-close {
    left: auto !important;
    right: 20px !important;
}

/* رفع افکت هاله، بوردر تکراری و تداخل پس‌زمینه در تگ‌های span تو در تو (مانند تگ‌های ابزارها و تاریخ‌ها) */
span.lang-fa, span.lang-en {
    background: none !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    display: inline;
}

/* راست‌چین و چپ‌چین شدن خودکار محتوای متنی پاپ‌آپ‌ها متناسب با دایرکشن زبان فعال */
[dir="ltr"] .custom-modal-body {
    text-align: left !important;
}

/* اصلاح اتوماتیک موقعیت خط عمودی و فاصله‌های خط زمانی ترکیبی در حالت انگلیسی */
[dir="ltr"] .timeline {
    padding-right: 0 !important;
    padding-left: 30px !important;
}

[dir="ltr"] .timeline::before {
    right: auto !important;
    left: 0 !important;
}

[dir="ltr"] .timeline-item {
    padding-right: 0 !important;
    padding-left: 40px !important;
    text-align: left !important;
}

[dir="ltr"] .timeline-dot {
    right: auto !important;
    left: -6px !important;
}