/* ============================================
   ENTERPRISE PORTFOLIO - Ts. Mohd Rizan
   Professional CTO Portfolio with WOW Factor
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #38bdf8;
    --accent: #f59e0b;
    --accent-light: #fbbf24;

    /* Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(26, 26, 37, 0.8);

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --gradient-accent: linear-gradient(135deg, var(--accent) 0%, #d97706 100%);
    --gradient-hero: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(245, 158, 11, 0.05) 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(14, 165, 233, 0.3);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(14, 165, 233, 0.2);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;

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

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

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

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

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

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

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

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

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

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    padding: 8px 16px;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.2);
    border-radius: 30px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-title .accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   LOADER
   ============================================ */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

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

.loader-ring {
    width: 60px;
    height: 60px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

.loader-text {
    font-family: var(--font-display);
    font-size: 0.875rem;
    letter-spacing: 4px;
    color: var(--primary);
    animation: pulse 1.5s ease infinite;
}

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

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

/* ============================================
   CUSTOM CURSOR
   ============================================ */
.cursor, .cursor-follower {
    display: none;
}

@media (min-width: 1024px) and (hover: hover) {
    .cursor {
        display: block;
        position: fixed;
        width: 8px;
        height: 8px;
        background: var(--primary);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9998;
        transform: translate(-50%, -50%);
        transition: transform 0.1s ease;
    }

    .cursor-follower {
        display: block;
        position: fixed;
        width: 40px;
        height: 40px;
        border: 1px solid var(--primary);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9997;
        transform: translate(-50%, -50%);
        transition: transform 0.3s ease, width 0.3s ease, height 0.3s ease;
    }

    .cursor-follower.hover {
        width: 60px;
        height: 60px;
        border-color: var(--accent);
    }
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

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

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

.nav-link.nav-cta {
    background: var(--gradient-primary);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.nav-link.nav-cta::after {
    display: none;
}

.nav-link.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

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

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

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

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 24px;
        transition: right var(--transition-base);
    }

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

    .nav-link {
        font-size: 1.25rem;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 24px 80px;
}

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

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

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(14, 165, 233, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(14, 165, 233, 0.05) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.3);
    padding: 10px 20px;
    border-radius: 50px;
    margin-bottom: 32px;
}

.hero-badge i {
    color: var(--primary);
}

.hero-badge span {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.hero-title {
    font-family: var(--font-display);
    margin-bottom: 24px;
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
}

.title-accent {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-role {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.role-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
}

.role-divider {
    color: var(--text-muted);
}

.role-years {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.hero-tagline {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 48px;
    line-height: 1.8;
}

.hero-tagline .highlight {
    color: var(--text-primary);
    font-weight: 500;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-plus {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: var(--border-color);
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 12px;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(14, 165, 233, 0.4);
}

.btn-primary i {
    transition: transform var(--transition-base);
}

.btn-primary:hover i {
    transform: translateX(4px);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
    transform: translateY(-3px);
}

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

.hero-scroll span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    margin: 0 auto;
    position: relative;
}

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

@keyframes scrollBounce {
    0%, 100% { top: 8px; opacity: 1; }
    50% { top: 20px; opacity: 0.5; }
}

/* Hero Socials */
.hero-socials {
    position: absolute;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hero-socials a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
}

.hero-socials a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateX(5px);
}

@media (max-width: 1024px) {
    .hero-socials {
        display: none;
    }
}

/* Animation Classes */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.about-grid {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 80px;
    align-items: center;
}

@media (max-width: 968px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

.about-image {
    position: relative;
}

.image-wrapper {
    position: relative;
    aspect-ratio: 4/5;
    border-radius: 20px;
    overflow: hidden;
}

.image-frame {
    position: absolute;
    top: -10px;
    left: -10px;
    right: 10px;
    bottom: 10px;
    border: 2px solid var(--primary);
    border-radius: 20px;
    z-index: 0;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient-card);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    position: relative;
    z-index: 1;
    border-radius: 20px;
    background: var(--bg-tertiary);
    transition: transform var(--transition-base);
}

.image-wrapper:hover .profile-image {
    transform: scale(1.02);
}

.image-placeholder i {
    font-size: 8rem;
    color: var(--text-muted);
    opacity: 0.3;
}

.image-accent {
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 150px;
    height: 150px;
    background: var(--gradient-primary);
    border-radius: 20px;
    opacity: 0.2;
    z-index: 0;
}

.about-badge {
    position: absolute;
    bottom: 30px;
    left: -20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-glow);
    padding: 16px 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    z-index: 2;
}

.about-badge i {
    color: var(--accent);
    font-size: 1.5rem;
}

.about-badge span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

@media (max-width: 968px) {
    .about-badge {
        left: 20px;
    }
}

.about-content .section-tag {
    display: inline-block;
    margin-bottom: 16px;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

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

.about-highlight {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin: 32px 0;
}

.highlight-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.highlight-icon i {
    font-size: 1.5rem;
    color: white;
}

.highlight-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 8px;
}

.highlight-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-info {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-item i {
    color: var(--primary);
}

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

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

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

@media (max-width: 968px) {
    .expertise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .expertise-grid {
        grid-template-columns: 1fr;
    }
}

.expertise-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

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

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

.card-icon {
    width: 64px;
    height: 64px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all var(--transition-base);
}

.expertise-card:hover .card-icon {
    background: var(--gradient-primary);
}

.card-icon i {
    font-size: 1.75rem;
    color: var(--primary);
    transition: color var(--transition-base);
}

.expertise-card:hover .card-icon i {
    color: white;
}

.expertise-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.expertise-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-list {
    list-style: none;
}

.card-list li {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.card-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ============================================
   JOURNEY/TIMELINE SECTION
   ============================================ */
.journey {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    transform: translateX(-50%);
}

@media (max-width: 768px) {
    .timeline-line {
        left: 20px;
    }
}

.timeline-item {
    display: flex;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    justify-content: flex-start;
    padding-right: calc(50% + 40px);
}

.timeline-item:nth-child(even) {
    justify-content: flex-end;
    padding-left: calc(50% + 40px);
}

@media (max-width: 768px) {
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding-left: 60px;
        padding-right: 0;
        justify-content: flex-start;
    }
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--bg-tertiary);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

@media (max-width: 768px) {
    .timeline-marker {
        left: 20px;
        width: 40px;
        height: 40px;
    }
}

.timeline-marker i {
    color: var(--primary);
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    .timeline-marker i {
        font-size: 1rem;
    }
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    transition: all var(--transition-base);
}

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

.timeline-date {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(14, 165, 233, 0.1);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.timeline-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--accent);
    margin-bottom: 16px;
}

.timeline-content ul {
    list-style: none;
    margin-bottom: 20px;
}

.timeline-content li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
}

.timeline-content li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-tags span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

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

.projects-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    font-size: 0.9rem;
    font-weight: 500;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 30px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    border-color: var(--primary);
    color: white;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (max-width: 768px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    transition: all var(--transition-base);
    display: flex;
    gap: 24px;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.project-icon {
    width: 60px;
    height: 60px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.project-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.project-content {
    flex: 1;
}

.project-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.project-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.project-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.project-stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.project-stats .stat {
    text-align: center;
}

.project-stats .stat-value {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
}

.project-stats .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

@media (max-width: 640px) {
    .project-card {
        flex-direction: column;
    }
}

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

.credentials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    margin-bottom: 80px;
}

@media (max-width: 768px) {
    .credentials-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

.credentials-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 32px;
}

.credentials-heading.center {
    justify-content: center;
}

.credentials-heading i {
    color: var(--primary);
}

.credential-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 16px;
    transition: all var(--transition-base);
}

.credential-card:hover {
    border-color: var(--border-glow);
}

.credential-year {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    min-width: 60px;
}

.credential-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.credential-content p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

@media (max-width: 500px) {
    .cert-grid {
        grid-template-columns: 1fr;
    }
}

.cert-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all var(--transition-base);
}

.cert-badge:hover {
    border-color: var(--primary);
    background: rgba(14, 165, 233, 0.05);
}

.cert-badge i {
    font-size: 1.25rem;
    color: var(--primary);
}

.cert-badge span {
    font-size: 0.85rem;
    font-weight: 500;
}

/* International */
.international-section {
    margin-bottom: 60px;
}

.international-grid {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.intl-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    min-width: 150px;
    transition: all var(--transition-base);
}

.intl-item:hover {
    transform: translateY(-5px);
    border-color: var(--border-glow);
}

.intl-item img {
    width: 40px;
    height: auto;
    border-radius: 4px;
}

.intl-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Partners */
.partners-section {
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.partners-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
}

.partner-logo {
    padding: 16px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.partner-logo:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

@media (max-width: 968px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

.contact-content .section-tag {
    display: inline-block;
}

.contact-content .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.contact-text {
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-info {
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    margin-bottom: 16px;
    text-decoration: none;
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: var(--primary);
    transform: translateX(10px);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.25rem;
    color: var(--primary);
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.contact-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.contact-socials {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
}

/* Contact Card */
.contact-visual {
    display: flex;
    justify-content: center;
}

.contact-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.card-avatar {
    width: 80px;
    height: 80px;
    background: rgba(14, 165, 233, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-avatar i {
    font-size: 2rem;
    color: var(--primary);
}

.card-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.card-info p {
    font-size: 0.875rem;
    color: var(--primary);
}

.card-body {
    display: flex;
    justify-content: space-between;
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

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

.card-stat .value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.card-stat .label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.availability {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 10px;
    height: 10px;
    background: #22c55e;
    border-radius: 50%;
    animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* ============================================
   SCROLL ANIMATIONS (AOS-like)
   ============================================ */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 480px) {
    .hero-stats {
        gap: 24px;
    }

    .stat-divider {
        display: none;
    }

    .stat-number {
        font-size: 2rem;
    }

    .btn {
        padding: 14px 24px;
        font-size: 0.9rem;
    }
}

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

.presentations-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

@media (max-width: 768px) {
    .presentations-grid {
        grid-template-columns: 1fr;
    }
}

.presentation-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    text-decoration: none;
    transition: all var(--transition-base);
}

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

.presentation-preview {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.preview-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.preview-gradient.sirim {
    background: linear-gradient(135deg, #0056a4 0%, #0891b2 50%, #10b981 100%);
}

.preview-gradient.sirim-alt {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.preview-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
}

.preview-content i {
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1rem;
}

.preview-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    color: white;
    backdrop-filter: blur(10px);
}

.presentation-info {
    padding: 1.5rem;
}

.presentation-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.presentation-info h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.presentation-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.presentation-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.presentation-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.presentation-meta i {
    color: var(--accent);
    font-size: 0.85rem;
}

.presentation-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary);
    transition: gap var(--transition-fast);
}

.presentation-card:hover .presentation-cta {
    gap: 0.75rem;
}

.presentation-cta i {
    transition: transform var(--transition-fast);
}

.presentation-card:hover .presentation-cta i {
    transform: translateX(4px);
}