/* =====================
   Root Variables
   ===================== */
:root {
    --primary: #0f172a;
    --secondary: #64748b;
    --accent: #0ea5e9;
    --accent-light: #e0f2fe;
    --background: #ffffff;
    --surface: #f8fafc;
    --border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --hero-bg: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    --section-alt-bg: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    --card-bg: #ffffff;
    --chip-bg: var(--accent-light);
    --chip-text: var(--accent);
    --profile-border: #ffffff;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    --transition: 0.3s ease;

    /* Navbar — dark glass, consistent across both modes */
    --nav-bg: rgba(11, 17, 32, 0.93);
    --nav-border: rgba(255, 255, 255, 0.07);
    --nav-text: #94a3b8;
    --nav-text-active: #f1f5f9;
    --nav-brand: var(--accent);

    /* Footer */
    --footer-bg: #1e293b;
    --footer-text: #f1f5f9;
    --footer-subtext: #64748b;
    --footer-heading: #f1f5f9;
    --footer-badge-color: #7dd3fc;
    --footer-badge-bg: rgba(14, 165, 233, 0.12);
    --footer-badge-border: rgba(14, 165, 233, 0.28);
    --footer-divider: rgba(255, 255, 255, 0.07);
    --footer-bottom-text: #475569;
    --footer-outline-border: rgba(255, 255, 255, 0.18);
    --footer-outline-text: #94a3b8;
    --footer-outline-hover-bg: rgba(255, 255, 255, 0.08);
    --footer-outline-hover-border: rgba(255, 255, 255, 0.38);
    --footer-outline-hover-text: #f1f5f9;
}

.theme-dark {
    --background: #0b1220;
    --surface: #111827;
    --border: #1f2937;
    --text-primary: #e5e7eb;
    --text-secondary: #94a3b8;
    --accent-light: rgba(14, 165, 233, 0.18);
    --hero-bg: linear-gradient(135deg, #0b1220 0%, #111827 100%);
    --section-alt-bg: linear-gradient(135deg, #0f172a 0%, #111827 100%);
    --card-bg: #0f172a;
    --chip-bg: rgba(14, 165, 233, 0.2);
    --chip-text: #7dd3fc;
    --profile-border: #0b1220;

    /* Navbar — deeper dark in dark mode */
    --nav-bg: rgba(5, 8, 18, 0.97);
    --nav-border: rgba(255, 255, 255, 0.05);
    --nav-text: #64748b;
    --nav-text-active: #e2e8f0;

    /* Footer */
    --footer-bg: #070c18;
    --footer-text: #e2e8f0;
    --footer-subtext: #4b5563;
    --footer-heading: #f1f5f9;
    --footer-bottom-text: #334155;
    --footer-divider: rgba(255, 255, 255, 0.06);
    --footer-outline-border: rgba(255, 255, 255, 0.13);
    --footer-outline-text: #64748b;
    --footer-outline-hover-bg: rgba(255, 255, 255, 0.06);
    --footer-outline-hover-border: rgba(255, 255, 255, 0.3);
    --footer-outline-hover-text: #e2e8f0;
}

/* =====================
   Global Styles
   ===================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* =====================
   Navigation
   ===================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    z-index: 1000;
    border-bottom: 1px solid var(--nav-border);
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-lg);
    height: 66px;
}

.nav-brand {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--nav-brand);
    letter-spacing: 0.06em;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.nav-brand::before {
    content: '>';
    color: var(--nav-text);
    font-size: 0.85rem;
    opacity: 0.6;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 999px;
    border: 1px solid var(--nav-border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--nav-text-active);
    cursor: pointer;
    transition: all var(--transition);
    flex-shrink: 0;
}

.theme-toggle:hover {
    border-color: var(--accent);
    background: rgba(14, 165, 233, 0.14);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.25);
}

.theme-toggle-icon {
    font-size: 0.95rem;
    line-height: 1;
}

.nav-link {
    text-decoration: none;
    color: var(--nav-text);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    transition: color var(--transition);
    position: relative;
    padding-bottom: 2px;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent);
    border-radius: 2px;
    transition: width var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.hamburger span {
    width: 22px;
    height: 2px;
    background: var(--nav-text-active);
    border-radius: 2px;
    transition: all var(--transition);
}

/* =====================
   Hero Section
   ===================== */
.hero {
    padding-top: 100px;
    padding-bottom: var(--spacing-2xl);
    background: var(--hero-bg);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Dot-grid background texture */
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
    background-size: 28px 28px;
    opacity: 0.55;
    pointer-events: none;
}

/* Ambient glow blobs */
.hero-glow {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(80px);
}

.hero-glow-1 {
    width: 520px;
    height: 520px;
    top: -140px;
    right: -100px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.13) 0%, transparent 70%);
}

.hero-glow-2 {
    width: 360px;
    height: 360px;
    bottom: -80px;
    left: -60px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.09) 0%, transparent 70%);
}

/* Two-column layout */
.hero-content {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: var(--spacing-2xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

/* ── Left: Text content ── */
.hero-text {
    max-width: 580px;
}

/* Availability badge */
.hero-availability {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(74, 222, 128, 0.10);
    border: 1px solid rgba(74, 222, 128, 0.30);
    color: #15803d;
    font-size: 0.76rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
}

.theme-dark .hero-availability {
    color: #4ade80;
    background: rgba(74, 222, 128, 0.08);
    border-color: rgba(74, 222, 128, 0.22);
}

.hero-pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #4ade80;
    will-change: opacity, transform;
    animation: hero-pulse-dot 2s ease-in-out infinite;
}

@keyframes hero-pulse-dot {
    0%, 100% { opacity: 1;   transform: scale(1);    }
    50%       { opacity: 0.5; transform: scale(0.75); }
}

/* Headline */
.hero-title {
    font-size: clamp(2.4rem, 4.5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.12;
    margin-bottom: 1.1rem;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.hero-title .highlight {
    background: linear-gradient(120deg, var(--accent) 0%, #06b6d4 55%, #818cf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Terminal-style role tag */
.hero-role-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.5rem 1rem;
    margin-bottom: 1.6rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    width: fit-content;
}

.hero-role-prompt {
    color: var(--accent);
    font-weight: 700;
}

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

.hero-role-cursor {
    color: var(--accent);
    font-weight: 700;
    will-change: opacity;
    animation: cursor-blink 1.1s step-end infinite;
}

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

/* Description */
.hero-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    max-width: 510px;
}

/* CTA Buttons */
.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.6rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #06b6d4 100%);
    color: #fff;
    box-shadow: 0 8px 22px rgba(14, 165, 233, 0.28);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(14, 165, 233, 0.42);
}

.btn-secondary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

/* Stats row */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.hero-stat-value {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.02em;
}

.hero-stat-label {
    font-size: 0.74rem;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.hero-stat-sep {
    width: 1px;
    height: 38px;
    background: var(--border);
    flex-shrink: 0;
}

/* ── Right: Visual column ── */
.hero-visual {
    position: relative;
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Ambient glow behind photo */
.profile-glow {
    position: absolute;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.20) 0%, transparent 68%);
    filter: blur(32px);
    pointer-events: none;
}

/* Profile photo */
.profile-image-wrapper {
    position: relative;
    width: 260px;
    height: 260px;
    z-index: 2;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--background);
    box-shadow: 0 0 0 2.5px var(--accent), 0 20px 60px rgba(14, 165, 233, 0.28);
    position: relative;
    z-index: 2;
    transition: transform var(--transition), box-shadow var(--transition);
}

.profile-image:hover {
    transform: scale(1.04);
    box-shadow: 0 0 0 3px var(--accent), 0 28px 72px rgba(14, 165, 233, 0.42);
}

/* Pulsing rings */
.profile-ring {
    position: absolute;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    will-change: opacity, transform;
}

.profile-ring:not(.profile-ring-outer) {
    inset: -14px;
    opacity: 0.28;
    animation: ring-pulse-inner 2.6s ease-in-out infinite;
}

.profile-ring-outer {
    inset: -28px;
    opacity: 0.12;
    animation: ring-pulse-outer 2.6s ease-in-out infinite 0.8s;
}

@keyframes ring-pulse-inner {
    0%, 100% { transform: scale(1);    opacity: 0.28; }
    50%       { transform: scale(1.04); opacity: 0.45; }
}

@keyframes ring-pulse-outer {
    0%, 100% { transform: scale(1);    opacity: 0.12; }
    50%       { transform: scale(1.05); opacity: 0.22; }
}

/* Floating badges */
.hero-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.09);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    z-index: 3;
    will-change: transform;
}

.badge-golang {
    top: 55px;
    left: -10px;
    animation: badge-float 3.6s ease-in-out infinite 0s;
}

.badge-aws {
    top: 55px;
    right: -10px;
    animation: badge-float 3.6s ease-in-out infinite 0.65s;
}

.badge-exp {
    bottom: 75px;
    left: 50%;
    animation: badge-float-center 3.6s ease-in-out infinite 1.3s;
}

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

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

/* Shared utility keyframes */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0);    }
}

/* =====================
   About Section
   ===================== */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-primary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

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

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.highlight-box {
    padding: var(--spacing-lg);
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
}

.highlight-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, #06b6d4 100%);
}

.highlight-box:hover {
    box-shadow: 0 12px 32px rgba(14, 165, 233, 0.12);
    transform: translateY(-4px);
    border-color: rgba(14, 165, 233, 0.3);
}

.highlight-box-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.highlight-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-light), rgba(6, 182, 212, 0.15));
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.highlight-box h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.01em;
}

.highlight-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.highlight-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.65;
}

.highlight-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    min-width: 6px;
    background: var(--accent);
    border-radius: 50%;
    margin-top: 0.55em;
}

/* =====================
   Experience Section
   ===================== */
.experience {
    padding: var(--spacing-2xl) 0;
    background: var(--background);
}

.experience-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    padding: var(--spacing-xl) 0;
}

/* Timeline line */
.experience-timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent) 0%, rgba(14, 165, 233, 0.1) 100%);
}

.experience-item {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    animation: fadeInUp 0.6s ease-out backwards;
}

.experience-item:nth-child(1) {
    animation-delay: 0.1s;
}

.experience-item:nth-child(2) {
    animation-delay: 0.2s;
}

.experience-item:nth-child(3) {
    animation-delay: 0.3s;
}

.experience-item:nth-child(4) {
    animation-delay: 0.4s;
}

.experience-item:nth-child(5) {
    animation-delay: 0.5s;
}

.experience-logo {
    width: 80px;
    height: 80px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 2px solid var(--border);
    position: relative;
    z-index: 2;
    transition: all var(--transition);
}

.experience-logo:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.15);
    border-color: var(--accent);
}

.experience-logo img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.experience-content {
    background: var(--surface);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
}

.experience-content:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateX(4px);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.experience-company {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.experience-duration {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(14, 165, 233, 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.experience-roles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.experience-role {
    position: relative;
    padding-left: var(--spacing-md);
    border-left: 3px solid transparent;
    transition: all var(--transition);
}

.experience-role:hover {
    border-left-color: var(--accent);
}

.role-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xs);
}

.role-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.role-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    background: rgba(14, 165, 233, 0.1);
    color: var(--accent);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border: 1px solid rgba(14, 165, 233, 0.28);
}

.role-period {
    display: block;
    font-size: 0.83rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.role-location {
    font-size: 0.83rem;
    color: var(--text-secondary);
    margin: var(--spacing-xs) 0;
    display: flex;
    align-items: center;
}

.role-location::before {
    content: '📍';
    margin-right: 6px;
}

.role-note {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-style: italic;
    margin: var(--spacing-xs) 0;
    padding: 4px 10px;
    background: var(--surface);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--border);
    opacity: 0.85;
}

.role-achievements {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.role-achievements li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.65;
}

.role-achievements li::before {
    content: '';
    width: 5px;
    height: 5px;
    min-width: 5px;
    background: var(--accent);
    border-radius: 50%;
    margin-top: 0.62em;
}

/* =====================
   Skills Section
   ===================== */
.skills {
    padding: var(--spacing-2xl) 0;
    background: var(--section-alt-bg);
    position: relative;
    overflow: hidden;
}

.skills::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(14, 165, 233, 0.07) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
}

.skills .container {
    position: relative;
    z-index: 1;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.skill-category {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent) 0%, #06b6d4 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

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

.skill-category:hover {
    box-shadow: 0 20px 48px rgba(14, 165, 233, 0.13);
    transform: translateY(-6px);
    border-color: rgba(14, 165, 233, 0.22);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.skill-cat-icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-light), rgba(6, 182, 212, 0.15));
    border-radius: var(--radius-md);
    font-size: 1.1rem;
}

.skill-category h3 {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

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

.tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 13px;
    background: var(--surface);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition);
    white-space: nowrap;
    border: 1px solid var(--border);
    cursor: default;
}

.tag img {
    display: block;
    width: 22px;
    height: 22px;
    object-fit: contain;
    flex-shrink: 0;
    transition: transform var(--transition);
}

.tag:hover {
    background: linear-gradient(135deg, var(--accent) 0%, #06b6d4 100%);
    color: white;
    border-color: transparent;
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 6px 18px rgba(14, 165, 233, 0.35);
}

.tag:hover img {
    transform: scale(1.1);
}

/* =====================
   Certifications Section
   ===================== */
.certifications {
    padding: var(--spacing-2xl) 0;
}

.cert-section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: calc(-1 * var(--spacing-xl));
    margin-bottom: var(--spacing-2xl);
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

/* Issuer accent colors */
.cert-aws    { --cert-accent: #FF9900; --cert-accent-light: rgba(255, 153, 0, 0.10); }
.cert-microsoft { --cert-accent: #00A4EF; --cert-accent-light: rgba(0, 164, 239, 0.10); }

.cert-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* Top accent strip */
.cert-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--cert-accent, var(--accent));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.cert-card:hover {
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.10);
    transform: translateY(-6px);
    border-color: var(--cert-accent, var(--accent));
}

/* Card Header */
.cert-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-md) 0;
}

.cert-issuer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cert-issuer-icon {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    background: var(--cert-accent-light, var(--accent-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.cert-issuer-name {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.cert-status {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

.cert-active {
    background: #dcfce7;
    color: #15803d;
}

.cert-verified {
    background: var(--accent-light);
    color: var(--accent);
}

/* Card Body */
.cert-body {
    padding: var(--spacing-md);
    flex: 1;
}

.cert-level {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--cert-accent, var(--accent));
    text-transform: uppercase;
    letter-spacing: 0.09em;
    margin-bottom: 0.4rem;
}

.cert-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.6rem;
    line-height: 1.3;
}

.cert-validity {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.84rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.cert-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* Card Footer */
.cert-footer {
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
    border-top: 1px solid var(--border);
    margin-top: var(--spacing-sm);
}

.cert-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--cert-accent, var(--accent));
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition);
}

.cert-link:hover {
    gap: 0.65rem;
}

/* Dark mode overrides */
.theme-dark .cert-active {
    background: rgba(21, 128, 61, 0.2);
    color: #4ade80;
}

.theme-dark .cert-verified {
    background: var(--accent-light);
    color: #7dd3fc;
}

/* =====================
   Site Footer (Contact + Footer merged)
   ===================== */
.site-footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    position: relative;
    overflow: hidden;
    padding: 5rem 0 0;
    transition: background var(--transition), color var(--transition);
}

/* Radial glow behind CTA */
.footer-glow {
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 350px;
    background: radial-gradient(ellipse, rgba(14, 165, 233, 0.11) 0%, transparent 68%);
    pointer-events: none;
}

/* CTA block */
.footer-cta {
    text-align: center;
    max-width: 660px;
    margin: 0 auto;
    padding-bottom: 4rem;
}

/* Availability badge */
.footer-availability-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--footer-badge-bg);
    border: 1px solid var(--footer-badge-border);
    color: var(--footer-badge-color);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.35rem 1rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.75rem;
}

.footer-pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #4ade80;
    animation: footer-pulse 2.2s ease-in-out infinite;
    will-change: opacity, transform;
}

@keyframes footer-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.75); }
}

.footer-heading {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--footer-heading);
    line-height: 1.15;
    letter-spacing: -0.025em;
    margin-bottom: 1.1rem;
}

.footer-subtext {
    color: var(--footer-subtext);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 2.5rem;
}

/* Contact buttons row */
.footer-contacts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.footer-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.72rem 1.4rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
}

.footer-btn-primary {
    background: var(--accent);
    color: #fff;
}

.footer-btn-primary:hover {
    background: #38bdf8;
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(14, 165, 233, 0.38);
}

.footer-btn-outline {
    background: transparent;
    border: 1.5px solid var(--footer-outline-border);
    color: var(--footer-outline-text);
}

.footer-btn-outline:hover {
    background: var(--footer-outline-hover-bg);
    border-color: var(--footer-outline-hover-border);
    color: var(--footer-outline-hover-text);
    transform: translateY(-2px);
}

/* Bottom copyright bar */
.footer-bottom {
    border-top: 1px solid var(--footer-divider);
    padding: 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.6rem;
    font-size: 0.82rem;
    color: var(--footer-bottom-text);
}

.footer-sep {
    opacity: 0.35;
}

/* =====================
   Responsive Design
   ===================== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 66px;
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: var(--nav-bg);
        -webkit-backdrop-filter: blur(18px);
        backdrop-filter: blur(18px);
        border-bottom: 1px solid var(--nav-border);
        padding: 0.5rem 0 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-link {
        display: block;
        width: 100%;
        padding: 0.75rem var(--spacing-lg);
        font-size: 0.9rem;
        border-bottom: none;
    }

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

    .nav-link:hover,
    .nav-link.active {
        background: rgba(255, 255, 255, 0.05);
        color: var(--nav-text-active);
    }

    .hamburger {
        display: flex;
    }

    /* Hero — mobile */
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        order: 2;
        max-width: 100%;
    }

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

    .hero-role-tag {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-description {
        max-width: 100%;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        order: 1;
        height: 340px;
        margin-bottom: var(--spacing-lg);
    }

    .profile-image-wrapper {
        width: 190px;
        height: 190px;
        margin: 0 auto;
    }

    .profile-glow {
        width: 240px;
        height: 240px;
    }

    .badge-golang {
        left: 0;
        top: 40px;
    }

    .badge-aws {
        right: 0;
        top: 40px;
    }

    .badge-exp {
        bottom: 20px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        justify-content: space-around;
    }

    .section-title {
        font-size: 2rem;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .experience-timeline::before {
        left: 40px;
    }

    .experience-item {
        grid-template-columns: 80px 1fr;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-xl);
    }

    .experience-logo {
        width: 60px;
        height: 60px;
    }

    .experience-logo img {
        width: 45px;
        height: 45px;
    }

    .experience-content {
        padding: var(--spacing-md);
    }

    .experience-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .experience-company {
        font-size: 1.2rem;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .footer-contacts {
        flex-direction: column;
        align-items: center;
    }

    .footer-btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-stats {
        gap: 1rem;
    }

    .hero-stat-value {
        font-size: 1.35rem;
    }

    .hero-badge {
        font-size: 0.72rem;
        padding: 0.4rem 0.8rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .about-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .tag {
        font-size: 0.85rem;
        padding: 6px 12px;
    }

    .tag img {
        width: 20px;
        height: 20px;
    }

    .experience-timeline::before {
        left: 30px;
    }

    .experience-item {
        grid-template-columns: 60px 1fr;
        gap: var(--spacing-sm);
    }

    .experience-logo {
        width: 50px;
        height: 50px;
    }

    .experience-logo img {
        width: 35px;
        height: 35px;
    }

    .experience-company {
        font-size: 1.1rem;
    }

    .role-title {
        font-size: 1rem;
    }
}

/* Additional mobile optimizations */
@media (max-width: 360px) {
    .tag {
        font-size: 0.8rem;
        padding: 5px 10px;
        gap: 6px;
    }

    .tag img {
        width: 18px;
        height: 18px;
    }

    .profile-image-wrapper {
        width: 150px;
        height: 150px;
    }
}

/* =====================
   Portfolio Section
   ===================== */
.portfolio {
    padding: var(--spacing-2xl) 0;
    background: var(--section-alt-bg);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

/* Card */
.project-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
    border-color: var(--accent);
}

/* Image wrapper */
.project-image-link {
    display: block;
    text-decoration: none;
}

.project-image {
    position: relative;
    width: 100%;
    height: 215px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

/* Fallback when image fails */
.project-image.img-fallback::after {
    content: 'Preview Coming Soon';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #475569;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.project-card:hover .project-image img {
    transform: scale(1.07);
}

/* Hover overlay */
.project-image-overlay {
    position: absolute;
    inset: 0;
    background: rgba(14, 165, 233, 0.80);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-preview-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    background: rgba(255, 255, 255, 0.18);
    padding: 0.55rem 1.2rem;
    border-radius: var(--radius-full);
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    transform: translateY(10px);
    transition: transform 0.3s ease;
}

.project-card:hover .project-preview-pill {
    transform: translateY(0);
}

/* Content area */
.project-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: 0.7rem;
}

/* Meta row: number + category */
.project-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-num {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: var(--accent);
    opacity: 0.55;
}

.project-category {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-full);
    background: var(--chip-bg);
    color: var(--chip-text);
}

/* Title */
.project-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin: 0;
}

/* Summary: 3-line clamp */
.project-summary {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
    margin: 0;
}

/* Tech chips */
.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tech-tag {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    background: var(--chip-bg);
    color: var(--chip-text);
    letter-spacing: 0.02em;
    white-space: nowrap;
}

/* Card footer: CTA + live link */
.project-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.project-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1.1rem;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
    transition: all var(--transition);
}

.project-cta:hover {
    background: #38bdf8;
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(14, 165, 233, 0.35);
}

.project-live-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--border);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition);
    flex-shrink: 0;
}

.project-live-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
}

/* =====================
   Project Detail Page
   ===================== */
.project-detail {
    padding-top: 90px;
    padding-bottom: var(--spacing-2xl);
    min-height: 80vh;
    background: var(--background);
}

/* Back button — lives in the navbar left slot on the detail page */
.detail-nav-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0.38rem 0.85rem 0.38rem 0.65rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--nav-border);
    background: rgba(255, 255, 255, 0.06);
    transition: all var(--transition);
    flex-shrink: 0;
    white-space: nowrap;
}

.detail-nav-back:hover {
    color: var(--nav-text-active);
    border-color: var(--accent);
    background: rgba(14, 165, 233, 0.14);
    transform: translateX(-2px);
}

/* Loading state */
.detail-loading {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    color: var(--text-secondary);
}

.detail-loading-spinner {
    width: 36px;
    height: 36px;
    border: 2.5px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: detail-spin 0.8s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

/* Error state */
.detail-error {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.detail-error-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.detail-error h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.detail-error p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.05rem;
}

/* Header */
.detail-header {
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.detail-meta {
    margin-bottom: var(--spacing-sm);
}

.detail-category-badge {
    display: inline-flex;
    align-items: center;
    background: var(--chip-bg);
    color: var(--chip-text);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.3rem 0.9rem;
    border-radius: var(--radius-full);
    border: 1px solid rgba(14, 165, 233, 0.25);
}

.detail-title {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.025em;
    line-height: 1.15;
    margin-bottom: var(--spacing-md);
}

.detail-tech {
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/* Image */
.detail-image-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-2xl);
    border: 1px solid var(--border);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    background: var(--surface);
    position: relative;
}

/* Shimmer skeleton — visible while image loads, covered once image paints.
   Uses transform (GPU-composited) instead of background-position (Paint). */
.detail-image-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    /* Wider than the container so translateX sweep covers edge-to-edge */
    width: 200%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--border) 50%,
        transparent 100%
    );
    transform: translateX(-100%);
    will-change: transform;
    animation: img-shimmer 1.6s linear infinite;
    z-index: 0;
}

@keyframes img-shimmer {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.detail-image-wrapper.img-fallback {
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-image-wrapper.img-fallback::before {
    display: none;
}

.detail-image-wrapper.img-fallback::after {
    content: 'Preview unavailable';
    color: var(--text-secondary);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
}

.detail-image {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.detail-image-wrapper:hover .detail-image {
    transform: scale(1.025);
}

/* Content grid */
.detail-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.detail-description h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

.detail-description p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.85;
}

/* Sidebar */
.detail-sidebar {
    position: sticky;
    top: 86px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.detail-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.detail-card h3 {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

/* Link buttons inside sidebar */
.detail-links {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.detail-link-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    width: 100%;
    border: 1.5px solid transparent;
}

.detail-link-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.detail-link-primary:hover {
    background: #38bdf8;
    border-color: #38bdf8;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.35);
}

.detail-link-secondary {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}

.detail-link-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .detail-title {
        font-size: 2rem;
    }

    .detail-content {
        grid-template-columns: 1fr;
    }

    .detail-sidebar {
        position: static;
    }
}