/* ==========================================
   CSS Custom Properties – Black & White
   ========================================== */
:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    --bg-card: rgba(255, 255, 255, 0.03);

    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #555555;

    --accent: #ffffff;
    --accent-dim: #888888;

    --accent-glow: 0 0 15px rgba(255, 255, 255, 0.15),
                   0 0 30px rgba(255, 255, 255, 0.08);
    --accent-text-glow: 0 0 10px rgba(255, 255, 255, 0.4),
                        0 0 20px rgba(255, 255, 255, 0.15);

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.25);

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

    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    --nav-height: 80px;
    --section-padding: 60px;
    --container-max: 1200px;
}

/* ==========================================
   Base
   ========================================== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

::selection {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* ==========================================
   Loading Screen
   ========================================== */
#loading-screen {
    position: fixed;
    inset: 0;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loading-screen.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

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

.loader-ring {
    width: 50px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

.loader-text {
    font-family: var(--font-display);
    font-size: 13px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-muted);
}

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

/* ==========================================
   Particles
   ========================================== */
#particles-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* ==========================================
   Navigation
   ========================================== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    z-index: 1000;
    transition: all var(--transition-normal);
}

#navbar.scrolled {
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 40px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 2px;
    transition: var(--transition-normal);
}
.nav-logo:hover { transform: scale(1.05); }

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

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: var(--transition-normal);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: #fff;
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: #fff;
}

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

/* Mobile Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}
.nav-toggle span {
    width: 28px;
    height: 1.5px;
    background: #fff;
    transition: var(--transition-normal);
    transform-origin: center;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ==========================================
   Sections (shared)
   ========================================== */
.section {
    position: relative;
    z-index: 1;
}

.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--section-padding) 40px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 36px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-subtle), transparent);
    max-width: 300px;
}

.title-number {
    font-size: 18px;
    color: var(--accent-dim);
    font-weight: 400;
}

/* ==========================================
   Hero Section
   ========================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: var(--nav-height);
    position: relative;
    overflow: hidden;
}

#rain-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 0 40px;
    max-width: 800px;
}

.hero-greeting {
    font-size: 16px;
    color: var(--accent-dim);
    font-weight: 400;
    letter-spacing: 6px;
    text-transform: uppercase;
}

.hero-name {
    font-family: var(--font-display);
    font-size: 80px;
    font-weight: 800;
    line-height: 1.05;
}

.name-line { display: block; }

.accent-text {
    text-shadow: var(--accent-text-glow);
}

.hero-title {
    font-size: 22px;
    color: var(--text-secondary);
    font-weight: 300;
    letter-spacing: 1px;
    margin-top: 8px;
}

.hero-description {
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 550px;
    margin-top: 4px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-top: 28px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    z-index: 1;
    animation: fadeInUp 1s ease 2.5s both;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
    animation: scrollPulse 2.5s ease infinite;
}

.scroll-indicator span {
    font-size: 10px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--text-muted);
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.2; transform: scaleY(0.5); }
    50% { opacity: 0.8; transform: scaleY(1); }
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
}

.btn-primary {
    background: #fff;
    color: #000;
}

.btn-primary:hover {
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

/* ==========================================
   Profile
   ========================================== */
.profile-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.profile-info {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 60px;
    align-items: start;
}

.avatar-frame {
    width: 200px;
    height: 200px;
    border-radius: 20px;
    border: 1px solid var(--border-hover);
    padding: 4px;
    transition: var(--transition-normal);
}

.avatar-frame:hover {
    box-shadow: var(--accent-glow);
}

.avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 16px;
    object-fit: cover;
    display: block;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    text-shadow: var(--accent-text-glow);
}

.profile-bio h3 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
}

.profile-bio p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.skills-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 30px;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    transition: all var(--transition-normal);
    cursor: default;
}

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

.skill-icon {
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-dim);
    transition: color var(--transition-normal);
}

.skill-item:hover .skill-icon {
    color: #fff;
}

.skill-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-normal);
}

.skill-item:hover .skill-name { color: #fff; }

/* Hobbies & Interests */
.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.hobby-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    transition: all var(--transition-normal);
}

.hobby-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.04);
}

.hobby-icon { font-size: 24px; flex-shrink: 0; }

.hobby-info h4 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: #fff;
}

.hobby-info p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ==========================================
   Projects
   ========================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-icon { font-size: 34px; }

.card-links { display: flex; gap: 12px; }

.card-link {
    color: var(--text-muted);
    transition: var(--transition-normal);
    text-decoration: none;
}
.card-link:hover { color: #fff; }

.card-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    transition: color var(--transition-normal);
}

.project-card:hover .card-title { color: #fff; }

.card-description {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.tag {
    font-size: 11px;
    padding: 4px 14px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Explore Project Button */
.btn-explore {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 20px;
    font-family: var(--font-primary);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    align-self: flex-start;
}

.btn-explore:hover {
    color: #fff;
    border-color: #fff;
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.08);
}

.btn-explore svg {
    transition: transform var(--transition-normal);
}

.btn-explore:hover svg {
    transform: translateX(4px);
}

/* ==========================================
   Education
   ========================================== */
.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 32px;
    transition: all var(--transition-normal);
}

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

.edu-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 8px;
}

.edu-header h4 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
}

.edu-location {
    font-size: 14px;
    color: var(--text-muted);
}

.edu-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.edu-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    text-shadow: var(--accent-text-glow);
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.edu-ap {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ap-badge {
    font-size: 12px;
    padding: 6px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* ==========================================
   Achievements
   ========================================== */
.achievements-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    transition: all var(--transition-normal);
}

.achievement-item:hover {
    border-color: var(--border-hover);
    transform: translateX(6px);
}

.achievement-badge {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
}

.achievement-badge.gold {
    background: linear-gradient(135deg, #b8860b, #ffd700);
    color: #000;
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.3);
}

.achievement-badge.silver {
    background: linear-gradient(135deg, #808080, #c0c0c0);
    color: #000;
    box-shadow: 0 0 12px rgba(192, 192, 192, 0.3);
}

.achievement-badge.bronze {
    background: linear-gradient(135deg, #8b4513, #cd7f32);
    color: #fff;
    box-shadow: 0 0 12px rgba(205, 127, 50, 0.3);
}

.achievement-badge.special {
    background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.2));
    color: #fff;
    border: 1px solid var(--border-hover);
    font-size: 18px;
}

.achievement-badge.star-gold {
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.4));
    color: #ffd700;
    border: 1px solid rgba(255, 215, 0, 0.6);
    font-size: 20px;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.35);
}

.achievement-badge.honour {
    background: linear-gradient(135deg, rgba(147, 112, 219, 0.2), rgba(138, 43, 226, 0.35));
    color: #d8bfd8;
    border: 1px solid rgba(147, 112, 219, 0.5);
    font-size: 18px;
    box-shadow: 0 0 12px rgba(147, 112, 219, 0.25);
}

.achievement-item span:last-child {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================
   Experience Timeline
   ========================================== */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--border-hover), var(--border-subtle), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

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

.timeline-dot {
    position: absolute;
    left: -34px;
    top: 8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--bg-primary);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    z-index: 1;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 28px;
    transition: all var(--transition-normal);
}

.timeline-content:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.timeline-role {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
}

.timeline-org {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 4px;
}

.timeline-date {
    font-size: 12px;
    color: var(--accent-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 500;
    white-space: nowrap;
    padding: 4px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
}

.timeline-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-bullets li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding-left: 20px;
    position: relative;
}

.timeline-bullets li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent-dim);
}

/* ==========================================
   Contact
   ========================================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 15px;
    padding: 16px 20px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    transition: all var(--transition-normal);
}

.contact-link:hover {
    border-color: var(--border-hover);
    color: #fff;
    transform: translateX(6px);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--accent-dim);
    transition: color var(--transition-normal);
}

.contact-link:hover .contact-icon {
    color: #fff;
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.form-group { position: relative; }

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px 0;
    font-family: var(--font-primary);
    font-size: 15px;
    color: #fff;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-subtle);
    outline: none;
    transition: var(--transition-normal);
    resize: none;
}

.form-group label {
    position: absolute;
    top: 18px;
    left: 0;
    font-size: 15px;
    color: var(--text-muted);
    pointer-events: none;
    transition: all var(--transition-normal);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -10px;
    font-size: 11px;
    color: #fff;
    letter-spacing: 1px;
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: #fff;
    transition: width var(--transition-normal);
}

.form-group input:focus ~ .input-line,
.form-group textarea:focus ~ .input-line {
    width: 100%;
}

.btn-submit { align-self: flex-start; }

.btn-submit.sent {
    background: #fff;
    color: #000;
}

.btn-arrow { transition: transform var(--transition-normal); }
.btn-submit:hover .btn-arrow { transform: translateX(5px); }

/* ==========================================
   Footer
   ========================================== */
#footer {
    position: relative;
    z-index: 1;
    padding: 40px;
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-content p { font-size: 14px; color: var(--text-muted); }
.footer-tech { font-size: 12px !important; opacity: 0.5; }

/* ==========================================
   Scroll Animations
   ========================================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translate(-50%, 20px); }
    to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ==========================================
   Blog Section & Cards
   ========================================== */
.section-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    margin-top: -40px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: all var(--transition-normal);
    position: relative;
}

.blog-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    background: rgba(255, 255, 255, 0.04);
}

.blog-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blog-icon { font-size: 32px; }

.blog-date {
    font-size: 12px;
    color: var(--accent-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.blog-title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    line-height: 1.4;
    transition: color var(--transition-normal);
}

.blog-card:hover .blog-title { color: #fff; }

.blog-summary {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
}

/* Blog Modal Reader */
.blog-modal {
    position: fixed;
    inset: 0;
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.blog-modal.open {
    opacity: 1;
    visibility: visible;
}

.blog-modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.blog-modal-container {
    position: relative;
    z-index: 1;
    background: #0d0d0d;
    border: 1px solid var(--border-hover);
    border-radius: 16px;
    max-width: 720px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 40px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.9);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.blog-modal.open .blog-modal-container {
    transform: translateY(0);
}

.blog-modal-close {
    position: absolute;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 32px;
    cursor: pointer;
    transition: color var(--transition-normal);
    line-height: 1;
}

.blog-modal-close:hover { color: #fff; }

.blog-modal-header h2 {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    margin-top: 8px;
}

.blog-meta {
    font-size: 13px;
    color: var(--accent-dim);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.blog-modal-body {
    margin-top: 28px;
    border-top: 1px solid var(--border-subtle);
    padding-top: 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.blog-modal-body h3 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 12px;
    color: #fff;
}

.blog-modal-body ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.blog-modal-body li {
    margin-bottom: 8px;
}
@media (max-width: 968px) {
    .hero-name { font-size: 56px; }

    .profile-info {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .profile-avatar { display: flex; justify-content: center; }
    .contact-content { grid-template-columns: 1fr; gap: 48px; }
    .projects-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 32px; }

    .edu-stats { gap: 24px; justify-content: center; }
    .edu-ap { justify-content: center; }
    .timeline-header { flex-direction: column; }
    .achievement-item { flex-direction: column; text-align: center; }
}

@media (max-width: 768px) {
    :root { --section-padding: 80px; }

    .nav-links {
        position: fixed;
        inset: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: rgba(0, 0, 0, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 36px;
        transition: right var(--transition-normal);
    }

    .nav-links.open { right: 0; }
    .nav-link { font-size: 20px; letter-spacing: 3px; }
    .nav-toggle { display: flex; }

    .hero-name { font-size: 40px; }
    .hero-title { font-size: 17px; }
    .hero-content { padding: 0 20px; }

    .hero-cta { flex-direction: column; width: 100%; }
    .btn { justify-content: center; }

    .avatar-frame { width: 150px; height: 150px; }
    .avatar-placeholder { font-size: 40px; }

    .section-container { padding: var(--section-padding) 20px; }
    .nav-container { padding: 0 20px; }
    .skills-container { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }

    .timeline { padding-left: 30px; }
    .timeline-dot { left: -24px; width: 10px; height: 10px; }
    .timeline::before { left: 8px; }
    .timeline-content { padding: 20px; }
    .stat-value { font-size: 26px; }
    .edu-header { flex-direction: column; }
}