/* css/premium.css */
/* Foundation for Premium AI Leader Portfolio */

:root {
    /* Color Palette */
    --bg-color: #0a0f1e;
    --surface-color: #111827;
    --surface-hover: #1a2236;
    --accent-color: #f5a623;
    --accent-glow: rgba(245, 166, 35, 0.35);
    --text-primary: #f0ece4;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --border-color: rgba(240, 236, 228, 0.08);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;

    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography elements */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.01em;
    margin-bottom: var(--spacing-xl);
}

h3 {
    font-size: 1.5rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

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

a:hover {
    color: var(--text-primary);
}

/* Layout classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: var(--spacing-md) 0;
    z-index: 1000;
    background: rgba(10, 15, 30, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

.gradient-text {
    background: linear-gradient(135deg, #f0ece4 0%, #f5a623 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, transform;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Main Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    /* offset navbar */
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-xl);
}

.stat-item h4 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stat-item p {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

/* Animated Gradient Mesh Background */
.hero-mesh {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-mesh::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background:
        radial-gradient(ellipse 900px 700px at 25% 45%, rgba(245, 166, 35, 0.07) 0%, transparent 70%),
        radial-gradient(ellipse 700px 500px at 75% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 60%),
        radial-gradient(ellipse 800px 600px at 55% 85%, rgba(245, 166, 35, 0.04) 0%, transparent 65%);
    animation: meshDrift 22s ease-in-out infinite alternate;
}

@keyframes meshDrift {
    0%   { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-4%, -3%) rotate(2deg); }
}

/* Hero Two-Column Layout */
.hero-inner {
    display: flex;
    align-items: center;
    gap: 5rem;
    position: relative;
    z-index: 10;
}

.hero-text {
    flex: 1;
}

.hero-photo {
    flex-shrink: 0;
    width: 260px;
}

.hero-photo img {
    width: 260px;
    height: 260px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid rgba(245, 166, 35, 0.45);
    box-shadow: 0 0 50px rgba(245, 166, 35, 0.12), 0 20px 40px rgba(0, 0, 0, 0.4);
    display: block;
}

/* Availability Badge */
.availability-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(245, 166, 35, 0.1);
    border: 1px solid rgba(245, 166, 35, 0.3);
    color: #f5a623;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    margin-bottom: var(--spacing-md);
}

.availability-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #f5a623;
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.4; transform: scale(0.8); }
}

/* Hero subtext (credential/focus line below tagline) */
.hero-subtext {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    font-family: var(--font-primary);
    letter-spacing: 0.03em;
}

/* Hero tagline + scannable bullets */
.hero-tagline {
    font-size: 1rem;
    color: var(--accent-color);
    font-weight: 500;
    letter-spacing: 0.03em;
    margin-bottom: 1.25rem;
    font-family: var(--font-primary);
}

.hero-bullets {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
}

.hero-bullets li {
    position: relative;
    padding: 0.35rem 0 0.35rem 1.4rem;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

.hero-bullets li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 600;
}

/* Hero CTA Buttons */
.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn-resume {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-resume:hover {
    background: #e6971e;
    color: #000;
    transform: translateY(-2px);
}

.btn-github {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border: 1px solid rgba(240, 236, 228, 0.2);
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-github:hover {
    border-color: rgba(240, 236, 228, 0.4);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

/* Experience Timeline */
.timeline {
    position: relative;
    max-width: 900px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-color) 0%, rgba(245, 166, 35, 0.08) 100%);
}

.timeline-item {
    position: relative;
    padding-left: 3.5rem;
    padding-bottom: var(--spacing-xl);
}

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

.timeline-dot {
    position: absolute;
    left: 5px;
    top: 1rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-color);
    border: 3px solid var(--bg-color);
    box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.2);
}

.timeline-dot.current {
    box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.2), 0 0 18px rgba(245, 166, 35, 0.35);
}

.timeline-period {
    font-size: 0.78rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-family: var(--font-primary);
}

.timeline-role {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-display);
    margin-bottom: 0.2rem;
    line-height: 1.2;
}

.timeline-company {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-sm);
}

.timeline-highlights {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.timeline-highlights li {
    font-size: 0.9rem;
    color: var(--text-muted);
    padding-left: 1.1rem;
    position: relative;
    line-height: 1.55;
}

.timeline-highlights li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-size: 0.7rem;
    top: 0.2rem;
}

/* Case Studies */
.case-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

@media (min-width: 992px) {
    .case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.case-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.case-card h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.75rem;
}

.case-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.case-section {
    margin-bottom: var(--spacing-md);
}

.case-status-badge {
    display: inline-block;
    background: rgba(245, 166, 35, 0.12);
    border: 1px solid rgba(245, 166, 35, 0.35);
    color: var(--accent-color);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.2rem 0.65rem;
    border-radius: 20px;
    margin-bottom: var(--spacing-sm);
}

.case-section h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-primary);
}

.case-section p {
    font-size: 1rem;
    margin-bottom: 0;
}

/* Tech Ecosystem */
.ecosystem-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

@media (min-width: 768px) {
    .ecosystem-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 900px) {
    .ecosystem-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.eco-category {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    text-align: center;
    transition: transform var(--transition-normal);
}

.eco-category:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.eco-category i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.eco-category h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.skill-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-size: 0.85rem;
    transition: all var(--transition-fast);
}

.skill-tag:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* Leadership Section */
.leadership-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

@media (min-width: 992px) {
    .leadership-grid {
        grid-template-columns: 2fr 1fr;
        /* Pubs take 2/3, Service takes 1/3 */
    }
}

.pub-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.pub-item {
    background: rgba(255, 255, 255, 0.02);
    border-left: 3px solid var(--accent-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 0 8px 8px 0;
}

.pub-item h4 {
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.pub-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.service-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    border-radius: 12px;
    height: 100%;
}

.service-box h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--accent-color);
}

/* Resume Bot */
.bot-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--accent-color);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 15px var(--accent-glow);
    z-index: 1000;
    transition: transform var(--transition-normal);
}

.bot-toggle:hover {
    transform: scale(1.1);
}

.bot-window {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 350px;
    height: 500px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
}

.bot-window.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.bot-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(245, 166, 35, 0.05);
    border-radius: 12px 12px 0 0;
}

.bot-header h4 {
    margin: 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.bot-close {
    cursor: pointer;
    color: var(--text-muted);
    font-size: 1.2rem;
    padding: 6px;
    border-radius: 4px;
    line-height: 1;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.bot-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

.bot-messages {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.msg {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.msg.bot {
    background: rgba(255, 255, 255, 0.05);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.msg.user {
    background: var(--accent-color);
    color: #000;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

/* Bot Typing Animation */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    width: fit-content;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

.bot-suggestions {
    padding: 8px var(--spacing-md) 6px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    flex-shrink: 0;
}

.bot-suggest-btn {
    background: transparent;
    border: 1px solid rgba(245, 166, 35, 0.4);
    color: var(--accent-color);
    border-radius: 20px;
    padding: 4px 10px;
    font-size: 0.7rem;
    font-family: var(--font-primary);
    cursor: pointer;
    white-space: nowrap;
    transition: background var(--transition-fast);
    line-height: 1.4;
}

.bot-suggest-btn:hover {
    background: rgba(245, 166, 35, 0.1);
}

.bot-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px var(--spacing-md);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.bot-input-area input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 8px 14px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.88rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.bot-input-area input:focus {
    border-color: var(--accent-color);
}

.bot-send-btn {
    background: var(--accent-color);
    border: none;
    border-radius: 50%;
    width: 34px;
    height: 34px;
    color: #000;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
    transition: opacity var(--transition-fast);
}

.bot-send-btn:hover    { opacity: 0.85; }
.bot-send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.bot-options {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bot-option-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-fast);
}

.bot-option-btn:hover {
    background: rgba(245, 166, 35, 0.1);
}

/* Certifications Section */
.cert-issuer-group {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.cert-issuer-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.cert-issuer-badge {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
    flex-shrink: 0;
    font-family: var(--font-display);
}

.cert-issuer-badge.datacamp {
    background: rgba(3, 239, 98, 0.12);
    color: #03ef62;
    border: 1px solid rgba(3, 239, 98, 0.3);
}

.cert-issuer-badge.google {
    background: rgba(66, 133, 244, 0.12);
    color: #4285f4;
    border: 1px solid rgba(66, 133, 244, 0.3);
}


.cert-issuer-header-text h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.cert-issuer-header-text p {
    margin: 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: var(--spacing-sm);
}

.cert-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.7rem 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 10px;
}

.cert-card::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #03ef62;
    flex-shrink: 0;
}

.cert-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.cert-standalone-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .cert-standalone-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.cert-standalone-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md) var(--spacing-lg);
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.cert-standalone-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.18);
}

.cert-standalone-card h4 {
    font-size: 0.975rem;
    margin-bottom: 0.2rem;
    font-family: var(--font-primary);
    font-weight: 600;
    color: var(--text-primary);
}

.cert-standalone-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0;
}

/* Engineering Philosophy */
.philosophy-block {
    max-width: 760px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.philosophy-statement {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.85;
    padding: var(--spacing-lg);
    border-left: 3px solid var(--accent-color);
    background: rgba(245, 166, 35, 0.03);
    border-radius: 0 8px 8px 0;
    margin: 0;
}

.philosophy-lead {
    display: block;
    font-size: 1.15rem;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.65rem;
}

/* Section heading gold accent */
.section > .container > h2 {
    display: inline-block;
    position: relative;
    padding-bottom: 0.75rem;
    margin-bottom: var(--spacing-xl);
}

.section > .container > h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

/* Production Portfolio Section */
.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 760px;
    margin-top: -2.5rem;
    margin-bottom: var(--spacing-xl);
    line-height: 1.65;
}

.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 640px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1100px) {
    .project-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.project-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-4px);
    border-color: rgba(245, 166, 35, 0.25);
}

.project-category {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.18rem 0.6rem;
    border-radius: 20px;
    display: inline-block;
    width: fit-content;
}
.project-category.cat-ai        { background: rgba(245,166,35,0.12); color: #f5a623; border: 1px solid rgba(245,166,35,0.3); }
.project-category.cat-ml        { background: rgba(139,92,246,0.12); color: #a78bfa; border: 1px solid rgba(139,92,246,0.3); }
.project-category.cat-pipeline  { background: rgba(59,130,246,0.12);  color: #60a5fa; border: 1px solid rgba(59,130,246,0.3); }
.project-category.cat-compliance{ background: rgba(239,68,68,0.12);   color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.project-category.cat-viz       { background: rgba(16,185,129,0.12);  color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.project-category.cat-scraping  { background: rgba(20,184,166,0.12);  color: #2dd4bf; border: 1px solid rgba(20,184,166,0.3); }
.project-category.cat-go        { background: rgba(99,102,241,0.12);  color: #818cf8; border: 1px solid rgba(99,102,241,0.3); }
.project-category.cat-auto      { background: rgba(107,114,128,0.15); color: #9ca3af; border: 1px solid rgba(107,114,128,0.3); }

.project-card h4 {
    font-family: var(--font-display);
    font-size: 1.0rem;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

.project-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.55;
    flex: 1;
}

.project-psi {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.psi-row {
    display: flex;
    gap: 0.6rem;
    font-size: 0.83rem;
    line-height: 1.45;
    align-items: flex-start;
}

.psi-label {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    min-width: 58px;
    flex-shrink: 0;
    padding-top: 0.1rem;
}

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

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 0.25rem;
}

.project-tech span {
    font-size: 0.7rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text-muted);
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
}

.project-impact {
    font-size: 0.78rem;
    color: var(--accent-color);
    font-weight: 600;
    border-top: 1px solid var(--border-color);
    padding-top: 0.5rem;
    margin-top: 0.25rem;
}

.portfolio-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.8;
}

/* ============================================================
   Impact Metrics Strip
   ============================================================ */
.metrics-strip {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, rgba(245,166,35,0.05) 0%, transparent 100%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.metrics-strip::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 800px 200px at 50% 50%, rgba(245,166,35,0.04) 0%, transparent 70%);
    pointer-events: none;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    position: relative;
}

@media (min-width: 768px) {
    .metrics-grid { grid-template-columns: repeat(6, 1fr); }
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

.metric-num {
    font-family: var(--font-display);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800;
    color: var(--accent-color);
    line-height: 1;
    letter-spacing: -0.03em;
    text-shadow: 0 0 40px rgba(245,166,35,0.4);
}

.metric-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.09em;
    line-height: 1.5;
}

/* ============================================================
   Core Strengths / Capabilities Section
   ============================================================ */
.capabilities-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

@media (min-width: 768px)  { .capabilities-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 1100px) { .capabilities-grid { grid-template-columns: repeat(3,1fr); } }

.capability-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: 16px 16px 0 0;
}

.capability-card.innov::before    { background: linear-gradient(90deg,#f5a623,#ef4444); }
.capability-card.reliable::before { background: linear-gradient(90deg,#10b981,#06b6d4); }
.capability-card.domain::before   { background: linear-gradient(90deg,#6366f1,#8b5cf6); }
.capability-card.lead::before     { background: linear-gradient(90deg,#f59e0b,#f5a623); }

.capability-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(0,0,0,0.35), 0 0 40px rgba(245,166,35,0.06);
    border-color: rgba(255,255,255,0.12);
}

.capability-icon {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.capability-card.innov .capability-icon    { color: #f5a623; }
.capability-card.reliable .capability-icon { color: #10b981; }
.capability-card.domain .capability-icon   { color: #818cf8; }
.capability-card.lead .capability-icon     { color: #f59e0b; }

.capability-card > h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.capability-card > p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.65;
}

.capability-evidence {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.capability-evidence li {
    font-size: 0.8rem;
    color: var(--text-muted);
    padding-left: 1.1rem;
    position: relative;
    line-height: 1.45;
}

.capability-evidence li::before {
    content: '▸';
    position: absolute;
    left: 0;
    font-size: 0.65rem;
    top: 0.2rem;
}

.capability-card.innov li::before    { color: #f5a623; }
.capability-card.reliable li::before { color: #10b981; }
.capability-card.domain li::before   { color: #818cf8; }
.capability-card.lead li::before     { color: #f59e0b; }

/* ============================================================
   Project Card Upgrades — gradient top border + glow
   ============================================================ */
.project-card {
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: 12px 12px 0 0;
}

.project-card.cat-ai::before         { background: linear-gradient(90deg,#f5a623,#f59e0b); }
.project-card.cat-ml::before         { background: linear-gradient(90deg,#8b5cf6,#c084fc); }
.project-card.cat-pipeline::before   { background: linear-gradient(90deg,#3b82f6,#60a5fa); }
.project-card.cat-compliance::before { background: linear-gradient(90deg,#ef4444,#f87171); }
.project-card.cat-viz::before        { background: linear-gradient(90deg,#10b981,#34d399); }
.project-card.cat-scraping::before   { background: linear-gradient(90deg,#14b8a6,#2dd4bf); }
.project-card.cat-go::before         { background: linear-gradient(90deg,#6366f1,#818cf8); }
.project-card.cat-auto::before       { background: linear-gradient(90deg,#6b7280,#9ca3af); }

.project-card:hover {
    box-shadow: 0 24px 50px rgba(0,0,0,0.45), 0 0 35px rgba(245,166,35,0.08);
}

.project-num {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    opacity: 0.45;
}

/* Staggered entrance */
.project-grid .project-card.fade-in:nth-child(1)  { transition-delay: 0.04s; }
.project-grid .project-card.fade-in:nth-child(2)  { transition-delay: 0.08s; }
.project-grid .project-card.fade-in:nth-child(3)  { transition-delay: 0.12s; }
.project-grid .project-card.fade-in:nth-child(4)  { transition-delay: 0.16s; }
.project-grid .project-card.fade-in:nth-child(5)  { transition-delay: 0.20s; }
.project-grid .project-card.fade-in:nth-child(6)  { transition-delay: 0.24s; }
.project-grid .project-card.fade-in:nth-child(7)  { transition-delay: 0.28s; }
.project-grid .project-card.fade-in:nth-child(8)  { transition-delay: 0.32s; }
.project-grid .project-card.fade-in:nth-child(9)  { transition-delay: 0.04s; }
.project-grid .project-card.fade-in:nth-child(10) { transition-delay: 0.08s; }
.project-grid .project-card.fade-in:nth-child(11) { transition-delay: 0.12s; }
.project-grid .project-card.fade-in:nth-child(12) { transition-delay: 0.16s; }

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

@media (max-width: 768px) {
    .hero-inner {
        flex-direction: column-reverse;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .hero-photo {
        width: 160px;
    }

    .hero-photo img {
        width: 160px;
        height: 160px;
    }

    .availability-badge {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-stats {
        justify-content: center;
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background: var(--surface-color);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 30px;
        transition: right 0.3s ease;
        border-left: 1px solid var(--border-color);
    }

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

    .nav-links a {
        font-size: 1.2rem;
    }
}

/* ============================================================
   Contact Form
   ============================================================ */
.contact-form-wrap {
    max-width: 520px;
    margin: var(--spacing-xl) auto 0;
    text-align: left;
}

.contact-form-wrap h3 {
    text-align: center;
    font-size: 1.4rem;
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--accent-color);
    color: #000;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    margin-top: var(--spacing-sm);
}

.btn-submit:hover    { opacity: 0.88; }
.btn-submit:disabled { opacity: 0.45; cursor: not-allowed; }

.form-feedback {
    margin-top: var(--spacing-md);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    display: none;
}

.form-feedback.success {
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.form-feedback.error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

/* ============================================================
   GitHub Live Stats Widget
   ============================================================ */
.gh-stats-widget {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    max-width: 620px;
    margin: var(--spacing-lg) auto 0;
    text-align: left;
}

@media (max-width: 560px) {
    .gh-stats-widget { grid-template-columns: 1fr; }
}

.gh-stats-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
}

.gh-stats-card h4 {
    font-family: var(--font-primary);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.lang-bar-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 0.83rem;
}

.lang-bar-label {
    width: 56px;
    color: var(--text-primary);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lang-bar-track {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.07);
    border-radius: 3px;
    overflow: hidden;
}

.lang-bar-fill {
    height: 100%;
    background: var(--accent-color);
    border-radius: 3px;
    transition: width 0.6s ease;
}

.lang-count {
    width: 22px;
    text-align: right;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.gh-commit-item {
    margin-bottom: 10px;
}

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

.gh-commit-repo {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 2px;
}

.gh-commit-msg {
    font-size: 0.82rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gh-stats-loading {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: var(--spacing-md) 0;
}

/* ============================================================
   Dynamic Project Gallery & Filter
   ============================================================ */
.gallery-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 20px;
    padding: 7px 18px;
    font-size: 0.82rem;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.filter-btn.filter-active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #000;
    font-weight: 600;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.gallery-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: opacity 0.25s ease, transform 0.25s ease, border-color var(--transition-fast);
}

.gallery-card:hover {
    border-color: rgba(245, 166, 35, 0.35);
}

.gallery-card.gcard-hide {
    opacity: 0;
    transform: scale(0.93) translateY(6px);
    pointer-events: none;
}

.gcard-top {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    align-items: center;
}

.gcard-status {
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 2px 8px;
    border-radius: 4px;
    flex-shrink: 0;
}

.gcard-status.status-production {
    background: rgba(34, 197, 94, 0.1);
    color: #86efac;
    border: 1px solid rgba(34, 197, 94, 0.25);
}

.gcard-status.status-research {
    background: rgba(99, 102, 241, 0.1);
    color: #a5b4fc;
    border: 1px solid rgba(99, 102, 241, 0.25);
}

.gcard-status.status-in-progress {
    background: rgba(245, 166, 35, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(245, 166, 35, 0.3);
}

.gcard-tag {
    font-size: 0.62rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 7px;
}

.gcard-title {
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.35;
}

.gcard-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin: 0;
    flex: 1;
}

.gcard-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.gcard-tech span {
    background: rgba(245, 166, 35, 0.08);
    color: var(--accent-color);
    border-radius: 4px;
    padding: 2px 7px;
    font-size: 0.67rem;
    font-weight: 500;
}

.gcard-impact {
    font-size: 0.7rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 8px;
    line-height: 1.4;
}

/* Resume download counter label */
.resume-dl-count {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 4px;
    min-height: 1em;
}