/* ==========================================================================
   Polish layer — 8px rhythm, unified surfaces, refined interactions
   Preserves existing dark aesthetic; loads last.
   ========================================================================== */

:root {
    /* Strict 8px spacing scale */
    --space-1: 0.5rem;   /* 8px */
    --space-2: 1rem;     /* 16px */
    --space-3: 1.5rem;   /* 24px */
    --space-4: 2rem;     /* 32px */
    --space-5: 2.5rem;   /* 40px */
    --space-6: 3rem;     /* 48px */
    --space-8: 4rem;     /* 64px */
    --space-10: 5rem;    /* 80px */
    --space-12: 6rem;    /* 96px */

    /* Align legacy tokens */
    --space-xs: var(--space-1);
    --space-sm: var(--space-2);
    --space-md: var(--space-2);
    --space-lg: var(--space-3);
    --space-xl: var(--space-4);
    --space-2xl: var(--space-6);
    --space-3xl: var(--space-10);
    --space-4xl: var(--space-12);

    /* Unified surfaces */
    --card-radius: var(--radius-lg);
    --card-border: var(--border-subtle);
    --card-shadow: var(--shadow-sm);
    --card-shadow-hover: var(--shadow-md);

    --gradient-hero: radial-gradient(ellipse 70% 55% at 50% -15%, rgba(99, 102, 241, 0.12), transparent),
                     radial-gradient(ellipse 50% 40% at 100% 10%, rgba(139, 92, 246, 0.06), transparent),
                     radial-gradient(ellipse 45% 35% at 0% 90%, rgba(59, 130, 246, 0.05), transparent);
}

/* Section rhythm */
.section {
    padding-block: var(--space-12);
}

.section--compact {
    padding-block: var(--space-8);
}

.section-header {
    margin-bottom: var(--space-8);
}

.section-header + .section-subtitle,
.section-subtitle {
    margin-top: var(--space-2);
}

.section-title {
    margin-top: var(--space-1);
}

/* Unified card hover */
.about-panel,
.exp-card,
.skill-chip,
.contact-card,
.resume-summary,
.metric-card,
.about-education {
    border-radius: var(--card-radius);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

.about-panel:hover,
.exp-card:hover,
.skill-chip:hover,
.contact-card:hover,
.metric-card:hover {
    border-color: var(--border-default);
    box-shadow: var(--card-shadow-hover);
}

.btn[aria-disabled="true"] {
    opacity: 0.65;
    pointer-events: none;
    cursor: default;
}

.btn {
    min-height: 44px;
    padding: 0.625rem 1.5rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.btn--sm {
    min-height: 36px;
    padding: 0.5rem 1rem;
}

.btn:focus-visible {
    outline: 2px solid var(--accent-light);
    outline-offset: 2px;
}

/* Hero polish */
.hero-canvas {
    opacity: 0.28;
}

.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
}

.hero::before {
    width: 420px;
    height: 420px;
    top: 10%;
    right: 5%;
    background: rgba(99, 102, 241, 0.15);
    animation: blob-drift 18s ease-in-out infinite;
}

.hero::after {
    width: 320px;
    height: 320px;
    bottom: 15%;
    left: 8%;
    background: rgba(59, 130, 246, 0.1);
    animation: blob-drift 22s ease-in-out infinite reverse;
}

@keyframes blob-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(24px, -16px) scale(1.05); }
}

.hero__inner {
    gap: var(--space-8);
    align-items: center;
}

.hero__composition {
    min-height: 460px;
    width: min(520px, 100%);
}

.hero__image-wrapper {
    width: min(360px, 90%);
}

.hero__terminal {
    bottom: 10%;
    left: -4%;
    width: min(280px, 70%);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.2),
        0 16px 48px rgba(0, 0, 0, 0.35),
        0 0 0 1px rgba(255, 255, 255, 0.06);
    transform-style: preserve-3d;
    animation: float-window 7s ease-in-out infinite;
}

@keyframes float-window {
    0%, 100% { transform: translateY(0) rotateX(0deg); }
    50% { transform: translateY(-8px) rotateX(1deg); }
}

/* Metrics */
.metrics__grid {
    gap: 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--card-radius);
    overflow: hidden;
    background: var(--bg-card);
    box-shadow: var(--card-shadow);
}

.metric-card {
    position: relative;
    padding: var(--space-4) var(--space-3);
    border-radius: 0;
    box-shadow: none;
    border: none;
}

.metric-card:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 20%;
    height: 60%;
    width: 1px;
    background: var(--border-subtle);
}

.metric-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin: 0 auto var(--space-2);
    color: var(--accent-light);
    background: var(--accent-subtle);
    border-radius: var(--radius-sm);
}

.metric-card__icon svg {
    width: 18px;
    height: 18px;
}

.metric-card__value {
    font-size: clamp(1.625rem, 3vw, 2.125rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.metric-card__label {
    font-size: 0.8125rem;
    margin-top: var(--space-1);
    line-height: 1.4;
}

.metric-card:hover {
    background: rgba(255, 255, 255, 0.02);
    transform: translateY(-3px);
}

/* About panels — accent storytelling */
.about-panels {
    gap: var(--space-3);
}

.about-panel {
    padding: var(--space-4);
    position: relative;
    overflow: hidden;
}

.about-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--panel-accent, var(--accent));
    opacity: 0.8;
}

.about-panel--identity { --panel-accent: #818cf8; }
.about-panel--build { --panel-accent: #22d3ee; }
.about-panel--interests { --panel-accent: #a78bfa; }
.about-panel--beyond { --panel-accent: #34d399; }

.about-panel__icon {
    background: color-mix(in srgb, var(--panel-accent, var(--accent)) 12%, transparent);
    color: var(--panel-accent, var(--accent-light));
}

.about-panel__title {
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
}

.about-panel p {
    font-size: 0.9375rem;
    line-height: 1.75;
}

/* Experience */
.experience-list {
    gap: var(--space-4);
}

.exp-card {
    padding: 0;
}

.exp-card__main {
    padding: var(--space-4);
    gap: var(--space-4);
    align-items: flex-start;
}

.exp-card__media {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
}

.exp-card__company {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-1);
}

.exp-card__date {
    font-size: 0.8125rem;
    padding: var(--space-1) var(--space-2);
    background: rgba(99, 102, 241, 0.08);
    border-color: rgba(99, 102, 241, 0.15);
    color: var(--accent-light);
}

.exp-card__expand-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-3);
    padding: 0;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--accent-light);
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition-fast), gap var(--transition-fast);
}

.exp-card__expand-link:hover {
    color: var(--text-primary);
    gap: var(--space-2);
}

.exp-card__expand-icon {
    transition: transform var(--transition-base);
}

.exp-card--open .exp-card__expand-icon {
    transform: rotate(90deg);
}

.exp-card__toggle {
    display: none;
}

.exp-case {
    display: grid;
    gap: var(--space-3);
    padding: var(--space-4);
    margin: 0 var(--space-4) var(--space-4);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.exp-case__block h4 {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-light);
    margin-bottom: var(--space-1);
}

.exp-case__block p {
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--text-secondary);
}

.exp-card__extra {
    padding: 0;
    padding-left: 0;
}

/* Projects */
.case-studies {
    gap: var(--space-10);
}

.case-study__preview {
    gap: var(--space-8);
    align-items: center;
}

.project-placeholder {
    --ph-height: 360px;
}

.case-study__summary {
    padding: var(--space-2) 0;
}

.project-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2) var(--space-4);
    margin: var(--space-4) 0;
    padding: var(--space-3);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.project-meta div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.project-meta dt {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.project-meta dd {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
}

.project-learned {
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--text-secondary);
    padding: var(--space-3);
    margin-bottom: var(--space-3);
    border-left: 2px solid var(--accent);
    background: rgba(99, 102, 241, 0.05);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.project-learned strong {
    color: var(--text-primary);
    font-weight: 600;
}

.case-study__actions {
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.case-study--highlight .case-study__visual-wrap {
    box-shadow: 0 0 0 2px var(--accent), 0 8px 40px var(--accent-glow);
}

.case-study--highlight .project-placeholder {
    animation-play-state: paused;
    transform: scale(1.02);
}

/* Skills */
.skills-showcase {
    gap: var(--space-6);
}

.skill-chip {
    padding: var(--space-3);
    cursor: default;
}

.skill-chip:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.skill-chip__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-1);
    margin-top: var(--space-2);
}

.skill-chip__tag {
    font-size: 0.625rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
}

.skill-chip__tag--project {
    color: var(--accent-light);
    border-color: rgba(99, 102, 241, 0.25);
}

/* Resume — Recruiter Snapshot */
.resume-summary {
    padding: var(--space-6);
    max-width: 880px;
}

.resume-summary__title {
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.resume-summary__grid {
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
}

.resume-preview {
    margin: var(--space-4) 0;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-elevated);
}

.resume-preview summary {
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.resume-preview summary::-webkit-details-marker {
    display: none;
}

.resume-preview summary:hover {
    color: var(--text-primary);
}

.resume-preview iframe {
    width: 100%;
    height: 480px;
    border: none;
    display: block;
}

.resume-availability {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.resume-availability span {
    font-size: 0.75rem;
    font-weight: 500;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: #86efac;
}

/* Contact */
.contact-cta {
    padding: var(--space-8) var(--space-6);
    margin-bottom: var(--space-8);
}

.contact-cta__title {
    font-size: clamp(2rem, 5vw, 2.75rem);
    line-height: 1.15;
}

.contact-info-strip {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3) var(--space-6);
    margin-bottom: var(--space-6);
    padding: var(--space-3) var(--space-4);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.contact-info-strip span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.contact-info-strip strong {
    color: var(--text-secondary);
    font-weight: 500;
}

.contact-card {
    padding: var(--space-4);
    background: rgba(24, 24, 28, 0.6);
    backdrop-filter: blur(12px);
}

.contact-grid {
    gap: var(--space-3);
}

/* Cursor glow */
.cursor-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.07), transparent 70%);
    pointer-events: none;
    z-index: 0;
    will-change: transform;
}

.case-study__visual-wrap {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.case-study:hover .case-study__visual-wrap {
    transform: translateY(-6px);
}

.case-modal__learned {
    margin: var(--space-3) 0 var(--space-4);
}

.skill-chip__name {
    margin-bottom: var(--space-1);
}

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

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

/* Reveal variants — override base .reveal transform */
.reveal.reveal--scale {
    transform: translateY(16px) scale(0.98);
}

.reveal.reveal--scale.in-view {
    transform: translateY(0) scale(1);
}

.reveal.reveal--blur {
    filter: blur(8px);
}

.reveal.reveal--blur.in-view {
    filter: blur(0);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .hero::before,
    .hero::after,
    .hero__terminal,
    .cursor-glow {
        animation: none !important;
        display: none;
    }

    .metric-card:hover,
    .about-panel:hover,
    .skill-chip:hover {
        transform: none;
    }
}

@media (max-width: 1024px) {
    .metric-card:not(:last-child)::after {
        display: none;
    }

    .metrics__grid {
        gap: var(--space-2);
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .metric-card {
        border: 1px solid var(--border-subtle);
        border-radius: var(--card-radius);
    }

    .project-meta {
        grid-template-columns: 1fr;
    }

    .hero__image-wrapper {
        width: min(300px, 78%);
    }
}

@media (max-width: 640px) {
    .section {
        padding-block: var(--space-10);
    }

    .contact-info-strip {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}