*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, monospace;
    --teal-400: #2dd4bf;
    --teal-500: #14b8a6;
    --teal-600: #0d9488;
    --cta: #f97316;
    --cta-hover: #ea580c;
    --cyan-glow: #5eead4;
    --bg-void: #050807;
    --bg-deep: #0a1210;
    --bg-elevated: #0f1916;
    --bg-card: rgba(17, 32, 28, 0.72);
    --border-subtle: rgba(94, 234, 212, 0.12);
    --border-strong: rgba(94, 234, 212, 0.28);
    --text-main: #e7fbf7;
    --text-muted: #9db8b3;
    --text-faint: #6b827d;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --transition-fast: 180ms ease;
    --transition-med: 240ms ease;
    --shadow-nav: 0 8px 32px rgba(0, 0, 0, 0.35);
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-main);
    background: var(--bg-void);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body.guide-open {
    overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10000;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-pill);
    background: var(--teal-600);
    color: var(--bg-void);
    font-weight: 600;
    text-decoration: none;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0.75rem;
    outline: 2px solid var(--cta);
    outline-offset: 3px;
}

.container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 clamp(18px, 4vw, 28px);
}

.section-pad {
    padding-block: clamp(3.25rem, 8vw, 5.75rem);
}

/* —— Nav (floating shell) —— */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: clamp(12px, 2.5vw, 18px) clamp(14px, 3vw, 24px);
    background: transparent;
    pointer-events: none;
}

.nav-shell {
    max-width: 1180px;
    margin: 0 auto;
    pointer-events: auto;
    padding: 0 2px;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.65rem clamp(14px, 2vw, 22px);
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--bg-deep) 88%, transparent);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow-nav);
}

.logo-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    cursor: pointer;
    color: var(--text-main);
    border-radius: var(--radius-sm);
}

.logo-link:focus-visible {
    outline: 2px solid var(--teal-400);
    outline-offset: 4px;
}

.logo-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal-400);
}

.logo-text {
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-main) 0%, var(--teal-400) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: clamp(0.85rem, 3vw, 1.65rem);
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.guide-trigger {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin: -0.35rem 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text-muted);
    font: inherit;
    cursor: pointer;
}

.guide-trigger-dot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 27px;
    height: 27px;
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    background: rgba(20, 40, 35, 0.52);
    color: var(--teal-400);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    transition: color var(--transition-med), border-color var(--transition-med), background var(--transition-med), box-shadow var(--transition-med);
}

.guide-trigger::after {
    content: attr(data-label);
    position: absolute;
    top: calc(100% + 0.4rem);
    left: 50%;
    z-index: 10;
    padding: 0.35rem 0.6rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    box-shadow: var(--shadow-nav);
    color: var(--text-main);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.2;
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -4px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    white-space: nowrap;
}

.guide-trigger:hover .guide-trigger-dot,
.guide-trigger:focus-visible .guide-trigger-dot {
    border-color: var(--teal-400);
    background: rgba(45, 212, 191, 0.12);
    color: var(--cyan-glow);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.1);
}

.guide-trigger:hover::after,
.guide-trigger:focus-visible::after {
    opacity: 1;
    transform: translate(-50%, 0);
}

.guide-trigger:focus-visible {
    border-radius: 50%;
    outline: 2px solid var(--cta);
    outline-offset: 2px;
}

.nav-links > a:not(.nav-cta-outline) {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    transition: color var(--transition-med);
    cursor: pointer;
    border-radius: var(--radius-sm);
    padding: 0.2rem 0.15rem;
}

.nav-links > a:not(.nav-cta-outline):hover {
    color: var(--teal-400);
}

.nav-links > a:not(.nav-cta-outline):focus-visible {
    outline: 2px solid var(--teal-400);
    outline-offset: 4px;
    color: var(--teal-400);
}

.github-link.nav-cta-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.95rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-strong);
    background: rgba(20, 40, 35, 0.5);
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    transition: border-color var(--transition-med), background var(--transition-med), color var(--transition-med), box-shadow var(--transition-med);
}

.github-link.nav-cta-outline:hover {
    border-color: var(--teal-400);
    color: var(--teal-400);
    box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.12);
}

.github-link.nav-cta-outline:focus-visible {
    outline: 2px solid var(--cta);
    outline-offset: 3px;
}

.icon-inline,
.icon-inline-sm {
    vertical-align: middle;
    flex-shrink: 0;
}

.icon-inline-sm {
    width: 14px;
    height: 14px;
    margin-inline-start: 0.25rem;
}

.icon-24 {
    width: 28px;
    height: 28px;
}

/* —— Hero —— */
.hero {
    position: relative;
    isolation: isolate;
    padding-block: clamp(3rem, 10vw, 5.25rem);
    overflow: clip;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(ellipse 100% 80% at 50% -20%, rgba(13, 148, 136, 0.35), transparent 55%),
        radial-gradient(ellipse 70% 50% at 100% 20%, rgba(249, 115, 22, 0.08), transparent),
        var(--bg-void);
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94, 234, 212, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 234, 212, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 85% 70% at 50% -10%, black 35%, transparent 75%);
}

.hero-orbs::before,
.hero-orbs::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.45;
    pointer-events: none;
}

.hero-orbs::before {
    width: 420px;
    height: 420px;
    background: var(--teal-600);
    top: -120px;
    right: -80px;
}

.hero-orbs::after {
    width: 300px;
    height: 300px;
    background: var(--cta);
    bottom: -40px;
    left: -60px;
    opacity: 0.2;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(2.5rem, 6vw, 4rem);
    align-items: center;
}

@media (min-width: 960px) {
    .hero-inner {
        grid-template-columns: minmax(0, 1.12fr) minmax(260px, 0.82fr);
    }
}

.hero-copy {
    max-width: 38rem;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1rem;
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-subtle);
    background: rgba(15, 25, 22, 0.9);
}

.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--teal-400);
    box-shadow: 0 0 10px var(--cyan-glow);
    animation: pulse-soft 2.4s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    .pulse-dot {
        animation: none;
    }
}

@keyframes pulse-soft {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.92); }
}

.hero-title {
    font-size: clamp(2.15rem, 5.5vw, 3.45rem);
    font-weight: 800;
    line-height: 1.07;
    letter-spacing: -0.035em;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2.5vw, 1.185rem);
    color: var(--text-muted);
    margin-bottom: 1.85rem;
    max-width: 36rem;
    line-height: 1.65;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.65rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: filter var(--transition-med), box-shadow var(--transition-med), background var(--transition-med), color var(--transition-med), border-color var(--transition-med);
    border: 2px solid transparent;
}

.btn:focus-visible {
    outline: 2px solid var(--cta);
    outline-offset: 3px;
}

.btn-primary.btn-cta {
    background: linear-gradient(165deg, var(--cta), var(--cta-hover));
    color: #0b0908;
    box-shadow:
        0 2px 0 rgba(0, 0, 0, 0.35),
        0 14px 40px rgba(249, 115, 22, 0.32);
}

.btn-primary.btn-cta:hover {
    filter: brightness(1.07);
    box-shadow:
        0 2px 0 rgba(0, 0, 0, 0.4),
        0 18px 48px rgba(249, 115, 22, 0.38);
}

.btn-secondary {
    background: transparent;
    color: var(--teal-400);
    border-color: color-mix(in srgb, var(--teal-400) 55%, transparent);
}

.btn-secondary:hover {
    background: rgba(45, 212, 191, 0.1);
    border-color: var(--teal-400);
    color: var(--cyan-glow);
}

.btn-large {
    padding: 1.05rem 2.35rem;
    font-size: 1.025rem;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    max-width: 22rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.hero-metrics li {
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: rgba(15, 25, 22, 0.65);
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.hero-metrics .metric-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-faint);
    font-weight: 600;
}

.hero-metrics .metric-value {
    font-weight: 800;
    font-size: 1.05rem;
    color: var(--teal-400);
}

/* Hero decorative panel */
.hero-panel {
    position: relative;
}

.hero-terminal {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-strong);
    box-shadow:
        0 24px 60px rgba(0, 0, 0, 0.45),
        inset 0 1px 0 rgba(94, 234, 212, 0.12);
    background: linear-gradient(145deg, #0c1513, #0a0f0d);
}

.terminal-chrome {
    display: flex;
    gap: 6px;
    padding: 0.65rem 1rem;
    background: rgba(0, 0, 0, 0.35);
    border-bottom: 1px solid var(--border-subtle);
}

.terminal-chrome span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-chrome span:nth-child(1) {
    background: #ff6b6b;
}
.terminal-chrome span:nth-child(2) {
    background: #feca57;
}
.terminal-chrome span:nth-child(3) {
    background: #1dd1a1;
}

.terminal-body {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.85;
    padding: 1.15rem 1.15rem 1.5rem;
    color: var(--text-muted);
    white-space: pre-wrap;
}

.t-prompt {
    color: var(--teal-400);
}

.t-caret {
    color: var(--cta);
    animation: caret-blink 1.1s step-end infinite;
}

@media (prefers-reduced-motion: reduce) {
    .t-caret {
        animation: none;
    }
}

@keyframes caret-blink {
    50% { opacity: 0; }
}

.t-green {
    color: #34d399;
}
.t-red {
    color: #f87171;
}
.t-muted {
    color: var(--text-faint);
}

/* —— Section headers —— */
.section-head {
    text-align: center;
    margin-bottom: clamp(2rem, 5vw, 3rem);
    max-width: 36rem;
    margin-inline: auto;
}

.section-lead {
    margin-top: 0.65rem;
    color: var(--text-muted);
    font-size: 1.025rem;
    line-height: 1.6;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-main);
}

.features {
    border-top: 1px solid var(--border-subtle);
    background: linear-gradient(180deg, transparent, rgba(13, 148, 136, 0.04));
}

/* —— Bento features —— */
.bento-grid {
    display: grid;
    gap: clamp(14px, 2.5vw, 20px);
    grid-template-columns: 1fr;
}

@media (min-width: 720px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .bento-span-2 {
        grid-column: span 2;
    }
}

@media (min-width: 980px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .bento-span-2 {
        grid-column: span 2;
    }
}

.feature-card {
    position: relative;
    padding: clamp(1.35rem, 3vw, 1.85rem);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color var(--transition-med), box-shadow var(--transition-med), background var(--transition-med);
}

.feature-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(45, 212, 191, 0.22), transparent 45%, transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-med);
}

.feature-card:hover {
    border-color: var(--border-strong);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

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

.feature-icon-wrap {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    display: grid;
    place-items: center;
    border-radius: var(--radius-md);
    color: var(--teal-400);
    background: rgba(13, 148, 136, 0.12);
    border: 1px solid var(--border-subtle);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.55rem;
    letter-spacing: -0.02em;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* —— Projects —— */
.projects {
    border-top: 1px solid var(--border-subtle);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: clamp(16px, 3vw, 22px);
    margin-top: 0;
}

@media (min-width: 900px) {
    .projects-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.project-card {
    position: relative;
    padding: clamp(1.4rem, 3vw, 2rem);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color var(--transition-med), box-shadow var(--transition-med);
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.project-card:hover {
    border-color: var(--border-strong);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.38);
}

.project-card:focus-within {
    border-color: var(--teal-400);
}

.project-badge {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    background: rgba(8, 20, 18, 0.85);
    color: var(--teal-400);
    padding: 0.3rem 0.72rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 1rem;
    border: 1px solid var(--border-subtle);
}

.project-badge.featured-badge {
    background: rgba(249, 115, 22, 0.12);
    color: var(--cta);
    border-color: rgba(249, 115, 22, 0.35);
}

.project-card.featured {
    border-color: rgba(249, 115, 22, 0.45);
    box-shadow: inset 0 1px 0 rgba(249, 115, 22, 0.15), 0 20px 50px rgba(249, 115, 22, 0.08);
}

.project-card.featured:hover {
    box-shadow: inset 0 1px 0 rgba(249, 115, 22, 0.2), 0 28px 64px rgba(249, 115, 22, 0.12);
}

.project-card h3 {
    font-size: 1.375rem;
    font-weight: 800;
    margin-bottom: 0.65rem;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.project-card > p {
    color: var(--text-muted);
    margin-bottom: 1.35rem;
    flex-grow: 0;
}

.project-features {
    list-style: none;
    margin-bottom: auto;
    padding-block-end: 1.25rem;
}

.project-features li {
    padding: 0.4rem 0 0.4rem 1.45rem;
    color: var(--text-muted);
    font-size: 0.9125rem;
    position: relative;
    line-height: 1.45;
}

.project-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.85rem;
    width: 6px;
    height: 6px;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--teal-500), var(--teal-600));
    box-shadow: 0 0 8px rgba(45, 212, 191, 0.45);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.5rem;
    color: var(--teal-400);
    text-decoration: none;
    font-weight: 700;
    cursor: pointer;
    transition: color var(--transition-med), gap var(--transition-med);
}

.project-link:hover {
    color: var(--cyan-glow);
    gap: 0.5rem;
}

.project-link:focus-visible {
    outline: 2px solid var(--cta);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

.demo {
    text-align: center;
    border-top: 1px solid var(--border-subtle);
    background:
        radial-gradient(ellipse 80% 120% at 50% 100%, rgba(13, 148, 136, 0.2), transparent 55%),
        var(--bg-deep);
}

.demo-inner {
    padding-block: 0;
}

.demo-title-on-dark {
    color: var(--text-main);
}

.demo-description {
    font-size: 1.05rem;
    margin: 0.85rem auto 1.85rem;
    color: var(--text-muted);
    max-width: 42ch;
}

/* —— Keyboard guide —— */
.guide-dialog {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(0.75rem, 4vw, 2rem);
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms ease;
}

.guide-dialog[hidden] {
    display: none;
}

.guide-dialog.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.guide-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 5, 0.76);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.guide-card {
    position: relative;
    width: min(100%, 720px);
    max-height: calc(100dvh - clamp(1.5rem, 8vw, 4rem));
    overflow-y: auto;
    overscroll-behavior: contain;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    background:
        radial-gradient(circle at 90% 0%, rgba(45, 212, 191, 0.1), transparent 32%),
        color-mix(in srgb, var(--bg-elevated) 96%, transparent);
    box-shadow: 0 28px 90px rgba(0, 0, 0, 0.62), 0 0 0 1px rgba(94, 234, 212, 0.06);
    opacity: 0;
    transform: translateY(16px) scale(0.98);
    transition: opacity 200ms ease, transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}

.guide-dialog.is-visible .guide-card {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.guide-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    padding: clamp(1.25rem, 4vw, 2rem) clamp(1.25rem, 4vw, 2rem) 1.15rem;
    border-bottom: 1px solid var(--border-subtle);
}

.guide-eyebrow {
    margin-bottom: 0.35rem;
    color: var(--teal-400);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.guide-title {
    margin-bottom: 0.45rem;
    color: var(--text-main);
    font-size: clamp(1.45rem, 4vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.15;
}

.guide-description {
    max-width: 56ch;
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

.guide-close {
    display: inline-flex;
    flex: 0 0 44px;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin: -0.45rem -0.45rem 0 0;
    padding: 0;
    border: 1px solid transparent;
    border-radius: 50%;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.guide-close svg {
    width: 20px;
    height: 20px;
}

.guide-close:hover {
    border-color: var(--border-subtle);
    background: rgba(45, 212, 191, 0.08);
    color: var(--text-main);
}

.guide-close:focus-visible {
    outline: 2px solid var(--cta);
    outline-offset: 2px;
}

.guide-body {
    display: grid;
    gap: 1.25rem;
    padding: 1.25rem clamp(1.25rem, 4vw, 2rem);
}

.guide-section-title {
    margin-bottom: 0.75rem;
    color: var(--text-main);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.guide-dialog kbd,
.guide-key-word {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--border-strong);
    border-bottom-color: rgba(94, 234, 212, 0.45);
    border-radius: 7px;
    background: rgba(5, 8, 7, 0.62);
    color: var(--cyan-glow);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
}

.guide-flow {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.65rem;
    list-style: none;
}

.guide-flow li {
    position: relative;
    display: grid;
    align-content: start;
    justify-items: start;
    min-height: 118px;
    gap: 0.55rem;
    padding: 0.85rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: rgba(15, 25, 22, 0.7);
}

.guide-flow li > span:last-child {
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.45;
}

.guide-step-number {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    color: var(--text-faint);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
}

.guide-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

.guide-panel {
    padding: 1rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: rgba(15, 25, 22, 0.48);
}

.guide-shortcuts,
.guide-notes,
.guide-settings {
    display: grid;
    gap: 0.65rem;
}

.guide-shortcuts > div,
.guide-settings li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.guide-shortcuts dt {
    flex-shrink: 0;
}

.guide-shortcuts dd,
.guide-settings span,
.guide-notes {
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.5;
}

.guide-shortcuts dd {
    text-align: right;
}

.guide-notes {
    padding-inline-start: 1.1rem;
}

.guide-notes li::marker {
    color: var(--teal-400);
}

.guide-notes strong {
    color: var(--teal-400);
}

.guide-settings {
    grid-template-columns: 1fr;
    list-style: none;
}

.guide-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem clamp(1.25rem, 4vw, 2rem) clamp(1.25rem, 4vw, 1.5rem);
    border-top: 1px solid var(--border-subtle);
}

.guide-footer > span {
    color: var(--text-faint);
    font-size: 0.75rem;
}

.guide-start {
    flex-shrink: 0;
    padding: 0.7rem 1.2rem;
}

@media (min-width: 700px) {
    .guide-flow {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .guide-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .guide-panel-wide {
        grid-column: 1 / -1;
    }

    .guide-settings {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    .guide-header {
        gap: 0.5rem;
    }

    .guide-flow {
        grid-template-columns: 1fr;
    }

    .guide-flow li {
        min-height: 94px;
    }

    .guide-footer {
        align-items: stretch;
        flex-direction: column-reverse;
    }

    .guide-footer > span {
        text-align: center;
    }

    .guide-start {
        width: 100%;
    }
}

/* —— Footer —— */
.footer {
    background: var(--bg-deep);
    padding: clamp(2.75rem, 6vw, 4rem) 0 1.5rem;
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (min-width: 720px) {
    .footer-content {
        grid-template-columns: 1.2fr repeat(2, minmax(0, 1fr));
    }
}

.footer-brand > p {
    color: var(--text-muted);
    font-size: 0.935rem;
    max-width: 28ch;
    margin-top: 0.5rem;
    line-height: 1.6;
}

.footer-logo-row {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.footer-logo-mark {
    color: var(--teal-400);
}

.footer-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.footer-section h4 {
    margin-bottom: 0.75rem;
    font-size: 0.8125rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--teal-400);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-muted);
    text-decoration: none;
    cursor: pointer;
    transition: color var(--transition-med);
    border-radius: var(--radius-sm);
}

.footer-section ul li a:hover {
    color: var(--cyan-glow);
}

.footer-section ul li a:focus-visible {
    outline: 2px solid var(--cta);
    outline-offset: 3px;
    color: var(--cyan-glow);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-faint);
    font-size: 0.875rem;
}

@media (max-width: 480px) {
    .nav-links {
        width: 100%;
        justify-content: flex-start;
    }

    .hero-metrics {
        grid-template-columns: 1fr 1fr 1fr;
    }
}