:root {
    --bg: #090d16;
    --bg-deep: #060912;
    --bg-panel: rgba(14, 19, 32, 0.74);
    --bg-panel-strong: rgba(19, 27, 45, 0.92);
    --line: rgba(124, 158, 255, 0.16);
    --text: #edf4ff;
    --muted: #8e9ab8;
    --cool: #45caff;
    --warm: #ff9d4d;
    --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.38);
    --shadow-md: 0 16px 42px rgba(0, 0, 0, 0.28);
    --radius-xl: 30px;
    --radius-lg: 24px;
    --rail-width: 220px;
    --canvas-width: 1120px;
    --transition: 180ms ease;
    --pointer-x: 50%;
    --pointer-y: 30%;
}

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

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(69, 202, 255, 0.14), transparent 18%),
        radial-gradient(circle at 82% 14%, rgba(143, 125, 255, 0.12), transparent 26%),
        radial-gradient(circle at 24% 78%, rgba(255, 157, 77, 0.08), transparent 24%),
        linear-gradient(180deg, #0b1020 0%, #070a13 100%);
    color: var(--text);
    font-family: "Trebuchet MS", "Segoe UI", sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 18%),
        repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.015) 0 1px, transparent 1px 3px);
    opacity: 0.45;
    mix-blend-mode: screen;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at 50% 0%, rgba(69, 202, 255, 0.06), transparent 40%),
        linear-gradient(90deg, rgba(69, 202, 255, 0.03), transparent 16%, transparent 84%, rgba(255, 157, 77, 0.03));
}

body.nav-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    color: inherit;
    font: inherit;
}

.skip-link {
    position: absolute;
    top: -48px;
    left: 16px;
    z-index: 1000;
    padding: 10px 14px;
    border-radius: 12px;
    background: #fff;
    color: #08101b;
}

.skip-link:focus {
    top: 16px;
}

.menu-toggle {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 1200;
    width: 52px;
    height: 52px;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(9, 13, 22, 0.9);
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(14px);
    cursor: pointer;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.active span:first-child {
    transform: translateY(4.5px) rotate(45deg);
}

.menu-toggle.active span:last-child {
    transform: translateY(-4.5px) rotate(-45deg);
}

.site-shell {
    width: min(100%, 1480px);
    margin: 0 auto;
    padding: 28px;
    display: grid;
    grid-template-columns: var(--rail-width) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.site-rail {
    position: sticky;
    top: 28px;
    min-height: calc(100vh - 56px);
    padding: 18px 16px;
    border-right: 1px solid rgba(124, 158, 255, 0.12);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.rail-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 10px 16px;
}

.rail-mark {
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cool), var(--warm));
    box-shadow: 0 0 22px rgba(69, 202, 255, 0.56);
}

.rail-brand-copy {
    display: flex;
    flex-direction: column;
}

.rail-brand-copy strong {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.rail-brand-copy small {
    color: var(--muted);
    font-size: 0.8rem;
}

.rail-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: 10px;
}

.rail-nav a {
    position: relative;
    padding: 10px 12px 10px 20px;
    color: var(--muted);
    border-radius: 14px;
    transition: color var(--transition), transform var(--transition), background var(--transition);
}

.rail-nav a::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 50%;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(143, 154, 184, 0.5);
    transform: translateY(-50%);
    transition: height var(--transition), background var(--transition), box-shadow var(--transition);
}

.rail-nav a:hover,
.rail-nav a.active {
    color: var(--text);
    background: rgba(69, 202, 255, 0.05);
    transform: translateX(4px);
}

.rail-nav a.active::before {
    height: 20px;
    background: linear-gradient(180deg, var(--cool), var(--warm));
    box-shadow: 0 0 18px rgba(69, 202, 255, 0.4);
}

.rail-footer {
    margin-top: auto;
    padding: 16px 10px 0;
    border-top: 1px solid rgba(124, 158, 255, 0.12);
}

.rail-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    color: var(--text);
    font-size: 0.86rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.rail-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cool);
    box-shadow: 0 0 18px rgba(69, 202, 255, 0.45);
    animation: pulse 2.8s ease-in-out infinite;
}

.rail-footer p {
    color: var(--muted);
    font-size: 0.9rem;
}

.page-canvas {
    width: 100%;
    max-width: var(--canvas-width);
    min-height: calc(100vh - 56px);
    padding: 18px 12px 28px;
    animation: pageIn 420ms ease;
}

.page-header {
    margin-bottom: 24px;
    padding: 18px 6px 8px;
}

.page-header-quiet {
    margin-bottom: 12px;
}

.section-tag {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 7px 12px;
    border: 1px solid rgba(69, 202, 255, 0.14);
    border-radius: 999px;
    background: rgba(69, 202, 255, 0.08);
    color: #c7efff;
    font-size: 0.76rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.page-header h1,
.panel h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 700;
    line-height: 1.08;
}

.page-header h1 {
    max-width: 14ch;
    font-size: clamp(2.6rem, 6vw, 4.8rem);
}

.page-header p {
    max-width: 46ch;
    margin-top: 12px;
    color: var(--muted);
    font-size: 1rem;
}

.home-canvas {
    display: flex;
    align-items: center;
}

.room-scene {
    position: relative;
    width: 100%;
    min-height: calc(100vh - 120px);
    padding: 48px;
    border: 1px solid rgba(124, 158, 255, 0.14);
    border-radius: 34px;
    background:
        radial-gradient(circle at 22% 18%, rgba(69, 202, 255, 0.12), transparent 20%),
        radial-gradient(circle at 78% 22%, rgba(255, 157, 77, 0.12), transparent 18%),
        linear-gradient(180deg, rgba(18, 25, 42, 0.9) 0%, rgba(10, 15, 25, 0.92) 100%);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.room-scene::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at var(--pointer-x) var(--pointer-y), rgba(255, 255, 255, 0.06), transparent 16%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 18%),
        linear-gradient(90deg, transparent, rgba(69, 202, 255, 0.04), transparent);
    pointer-events: none;
}

.scene-copy {
    position: relative;
    z-index: 1;
    max-width: 26ch;
    margin-bottom: 44px;
}

.scene-kicker {
    display: inline-block;
    margin-bottom: 12px;
    color: #c6d7ff;
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.scene-copy p {
    color: var(--text);
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.4rem, 2.7vw, 2.3rem);
    line-height: 1.2;
}

.desk-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 18px;
    align-items: end;
}

.desk-object {
    position: relative;
    min-height: 180px;
    padding: 22px;
    border: 1px solid rgba(124, 158, 255, 0.16);
    border-radius: 24px;
    background:
        linear-gradient(180deg, rgba(31, 41, 67, 0.82), rgba(14, 20, 35, 0.88)),
        rgba(12, 16, 29, 0.8);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.desk-object::after {
    content: "";
    position: absolute;
    inset: auto -10% -35% 40%;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(69, 202, 255, 0.24), transparent 70%);
    opacity: 0.65;
    transition: transform 220ms ease, opacity 220ms ease;
}

.desk-object:hover {
    transform: translateY(-6px);
    border-color: rgba(69, 202, 255, 0.28);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
}

.desk-object:hover::after {
    transform: translateX(-12px);
    opacity: 0.95;
}

.desk-object-wide {
    grid-column: span 2;
    min-height: 220px;
}

.desk-object-soft::after {
    background: radial-gradient(circle, rgba(255, 157, 77, 0.2), transparent 70%);
}

.object-label {
    display: inline-block;
    margin-bottom: 14px;
    color: #cde8ff;
    font-size: 0.8rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.desk-object strong {
    display: block;
    max-width: 20ch;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.45rem;
    line-height: 1.2;
}

.scene-ambient {
    position: absolute;
    right: 34px;
    bottom: 28px;
    color: rgba(205, 232, 255, 0.6);
    font-size: 0.84rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.panel,
.contact-link {
    position: relative;
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background:
        linear-gradient(180deg, rgba(17, 24, 40, 0.78), rgba(11, 16, 28, 0.86)),
        var(--bg-panel);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.panel::before,
.contact-link::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.045), transparent 30%, transparent 70%, rgba(69, 202, 255, 0.04));
    pointer-events: none;
}

.panel-feature {
    margin-bottom: 22px;
}

.panel-heading {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: end;
    margin-bottom: 22px;
}

.panel-heading-compact {
    margin-bottom: 18px;
}

.panel-heading h2 {
    font-size: clamp(1.9rem, 3vw, 2.8rem);
}

.panel-heading p,
.soft-copy,
.panel-meta {
    color: var(--muted);
}

.panel-heading p {
    max-width: 32ch;
}

.panel-actions {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 18px;
}

.button {
    padding: 11px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    cursor: pointer;
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.button:hover,
.contact-link:hover,
.mood-card:hover,
.link-stack a:hover {
    transform: translateY(-3px);
}

.button-primary {
    border-color: rgba(69, 202, 255, 0.2);
    background: linear-gradient(135deg, rgba(69, 202, 255, 0.18), rgba(143, 125, 255, 0.14));
}

.button.active {
    border-color: rgba(69, 202, 255, 0.32);
    background: linear-gradient(135deg, rgba(69, 202, 255, 0.2), rgba(255, 157, 77, 0.12));
}

.button-ghost {
    background: rgba(255, 255, 255, 0.02);
}

.split-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.split-grid-wide {
    align-items: start;
}

.signal-field {
    display: grid;
    grid-template-columns: repeat(11, minmax(0, 1fr));
    gap: 10px;
}

.signal-node {
    height: 56px;
    border: 1px solid rgba(124, 158, 255, 0.15);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.02);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.01);
    transition: transform 220ms ease, background 220ms ease, border-color 220ms ease;
}

.signal-node.active {
    border-color: rgba(69, 202, 255, 0.35);
    background: linear-gradient(180deg, rgba(69, 202, 255, 0.18), rgba(143, 125, 255, 0.12));
    transform: translateY(-5px) scale(1.02);
}

.reaction-module,
.pattern-module {
    display: grid;
    gap: 16px;
}

.reaction-display,
.pattern-screen,
.music-detail,
.fragment-quote,
.joke-box {
    padding: 22px;
    border: 1px solid rgba(124, 158, 255, 0.14);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
}

.reaction-display {
    min-height: 112px;
    display: grid;
    place-items: center;
    text-align: center;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.35rem;
}

.reaction-display.ready {
    color: #dff9ff;
    border-color: rgba(69, 202, 255, 0.34);
    background: linear-gradient(180deg, rgba(69, 202, 255, 0.14), rgba(255, 255, 255, 0.03));
}

.reaction-display.early {
    border-color: rgba(255, 157, 77, 0.34);
    color: #ffd7b0;
}

.reaction-stats {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    color: var(--muted);
}

.pattern-screen {
    min-height: 164px;
    color: #cde8ff;
    font-size: 1rem;
    white-space: pre-wrap;
}

.music-moods {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.mood-card {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.03);
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.mood-card span {
    display: block;
    margin-bottom: 10px;
    color: #cde8ff;
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.mood-card strong {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.1rem;
    line-height: 1.3;
}

.mood-card.active {
    border-color: rgba(69, 202, 255, 0.3);
    background: linear-gradient(180deg, rgba(69, 202, 255, 0.12), rgba(255, 255, 255, 0.03));
}

.music-detail {
    margin-top: 18px;
}

.music-detail h3 {
    margin-bottom: 8px;
    font-size: 1.2rem;
}

.music-detail p {
    color: var(--muted);
}

.tone-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.stack-list,
.chip-list {
    list-style: none;
}

.stack-list {
    display: grid;
    gap: 14px;
}

.stack-list li {
    display: grid;
    gap: 4px;
    padding: 16px;
    border: 1px solid rgba(124, 158, 255, 0.12);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.03);
}

.stack-list li span {
    color: var(--muted);
}

.compact-list li {
    padding: 14px;
}

.random-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 22px;
}

.fragment-quote {
    min-height: 160px;
    display: grid;
    align-items: center;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.35rem, 2.4vw, 2rem);
    line-height: 1.3;
}

.joke-box {
    min-height: 130px;
    color: #d6e5ff;
    font-size: 1.04rem;
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip-list li,
.about-notes span {
    padding: 10px 14px;
    border: 1px solid rgba(124, 158, 255, 0.14);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
    color: #d7e6ff;
}

.link-stack {
    display: grid;
    gap: 12px;
}

.link-stack a,
.contact-link {
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}

.link-stack a {
    padding: 14px 16px;
    border: 1px solid rgba(124, 158, 255, 0.14);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.03);
    color: #d7e6ff;
}

.button:focus-visible,
.mood-card:focus-visible,
.link-stack a:focus-visible,
.contact-link:focus-visible,
.rail-nav a:focus-visible,
.desk-object:focus-visible {
    outline: 2px solid rgba(69, 202, 255, 0.65);
    outline-offset: 3px;
}

.contact-stack {
    display: grid;
    gap: 16px;
    max-width: 760px;
}

.contact-link {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
}

.contact-link span {
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
}

.contact-link strong {
    font-size: 1.02rem;
}

.about-panel {
    max-width: 760px;
}

.about-panel p {
    max-width: 54ch;
    color: #d7e6ff;
    font-size: 1.02rem;
}

.about-notes {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

@keyframes pulse {
    0%,
    100% {
        opacity: 0.65;
        transform: scale(0.92);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pageIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1180px) {
    .site-shell {
        grid-template-columns: 1fr;
    }

    .menu-toggle {
        display: flex;
    }

    .site-rail {
        position: fixed;
        top: 16px;
        left: 16px;
        bottom: 16px;
        z-index: 1100;
        width: min(320px, calc(100vw - 32px));
        min-height: auto;
        padding: 20px 16px;
        border: 1px solid var(--line);
        border-radius: 24px;
        background: rgba(8, 12, 20, 0.94);
        backdrop-filter: blur(16px);
        transform: translateX(calc(-100% - 24px));
        transition: transform var(--transition);
        box-shadow: var(--shadow-lg);
    }

    .site-rail.open {
        transform: translateX(0);
    }

    .page-canvas {
        padding-top: 56px;
    }
}

@media (max-width: 960px) {
    .desk-grid,
    .split-grid,
    .music-moods,
    .random-grid {
        grid-template-columns: 1fr;
    }

    .desk-object-wide {
        grid-column: span 1;
    }

    .panel-heading {
        flex-direction: column;
        align-items: start;
    }
}

@media (max-width: 720px) {
    .site-shell {
        padding: 16px;
    }

    .room-scene,
    .panel,
    .contact-link {
        padding: 22px;
        border-radius: 24px;
    }

    .room-scene {
        min-height: auto;
    }

    .page-header h1 {
        max-width: 100%;
        font-size: clamp(2.2rem, 11vw, 3.4rem);
    }

    .desk-object strong {
        font-size: 1.2rem;
    }

    .signal-field {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .contact-link {
        flex-direction: column;
        align-items: start;
    }
}

@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;
    }
}