:root {
    color-scheme: light;
    --bg: #eef3f5;
    --bg-elevated: #ffffff;
    --panel: rgba(255, 255, 255, 0.92);
    --text: #132027;
    --muted: #61737c;
    --line: rgba(19, 32, 39, 0.1);
    --primary: #1f7a8c;
    --primary-strong: #0f5562;
    --accent: #d9b15f;
    --accent-soft: #f7efe0;
    --success: #1f8a63;
    --danger: #b0483c;
    --shadow: 0 16px 36px rgba(20, 39, 45, 0.08);
    --shadow-strong: 0 26px 62px rgba(20, 39, 45, 0.16);
    --radius: 8px;
    --font: "Segoe UI", "Trebuchet MS", sans-serif;
}

body[data-theme="dark"] {
    color-scheme: dark;
    --bg: #11181c;
    --bg-elevated: #1a252b;
    --panel: rgba(24, 35, 40, 0.88);
    --text: #edf4f6;
    --muted: #9fb0b7;
    --line: rgba(237, 244, 246, 0.1);
    --primary: #79bfd0;
    --primary-strong: #9fd6e2;
    --accent: #e6c16f;
    --accent-soft: rgba(230, 193, 111, 0.08);
    --success: #66c79a;
    --danger: #df8a7f;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body {
    margin: 0;
    font-family: var(--font);
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(31, 122, 140, 0.13), transparent 26%),
        radial-gradient(circle at top right, rgba(217, 177, 95, 0.13), transparent 24%),
        linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--bg) 92%, black 8%) 100%);
}

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

img {
    display: block;
}

button,
input,
select,
textarea {
    font: inherit;
}

button,
.segmented a,
.template-button,
.ghost-link {
    border-radius: var(--radius);
    transition: transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

button:hover,
.segmented a:hover,
.template-button:hover,
.ghost-link:hover {
    transform: translateY(-1px);
}

button {
    border: 0;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
    padding: 0.85rem 1rem;
    box-shadow: 0 12px 20px rgba(31, 122, 140, 0.2);
}

.ghost-button,
.ghost-link {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--line);
    box-shadow: none;
}

.ghost-link {
    padding: 0.72rem 0.9rem;
}

.install-button {
    white-space: nowrap;
}

input,
select,
textarea {
    width: 100%;
    padding: 0.85rem 0.95rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
    color: var(--text);
}

textarea {
    resize: vertical;
}

label,
fieldset {
    display: grid;
    gap: 0.45rem;
}

fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}

legend,
label span {
    font-size: 0.95rem;
    font-weight: 700;
}

.app-shell {
    width: min(1180px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 1rem 0 2.4rem;
}

.topbar,
.topbar-actions,
.brand-wrap,
.top-links,
.inline-actions,
.card-head,
.timeline-item {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.topbar {
    justify-content: space-between;
    padding: 0.85rem 0 1.35rem;
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(14px);
}

.brand {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0;
}

.brand-mark {
    padding: 0.35rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 94%, transparent);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.tagline,
.muted,
small {
    color: var(--muted);
}

.tagline {
    margin: 0.2rem 0 0;
}

.hello {
    font-weight: 700;
}

.page,
.stack,
.scoreboard,
.card-grid,
.reward-list,
.score-strip,
.member-picker,
.template-row,
.timeline,
.flash-stack,
.hero-list {
    display: grid;
    gap: 1rem;
}

.hero {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 1.5rem;
    align-items: center;
    min-height: 68vh;
}

.calm-hero {
    padding: 2rem 0 1rem;
}

.auth-panel-rich {
    padding: 1.25rem;
}

.auth-intro {
    display: grid;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.auth-intro h2 {
    margin: 0;
    font-size: 1.5rem;
}

.auth-note {
    margin: 0;
    font-size: 0.95rem;
    color: var(--muted);
}

.hero-copy h1,
.section-title h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 0.98;
}

.hero-copy p,
.panel p,
.timeline-item p {
    line-height: 1.6;
}

.hero-list {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.hero-list span,
.pill {
    padding: 0.45rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
}

.hero-story {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
    margin-top: 1rem;
}

.story-card {
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 78%, transparent);
    box-shadow: var(--shadow);
}

.story-card p {
    margin: 0.3rem 0 0;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 0.45rem;
    text-transform: uppercase;
    font-size: 0.78rem;
    color: var(--primary-strong);
    font-weight: 800;
}

.panel,
.friendship-card {
    background: var(--panel);
    backdrop-filter: blur(10px);
    border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}

.panel,
.friendship-card {
    padding: 1.05rem;
}

.auth-panel {
    max-width: 28rem;
    justify-self: end;
}

.segmented {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: color-mix(in srgb, var(--bg-elevated) 86%, transparent);
    border-radius: var(--radius);
    padding: 0.25rem;
    margin-bottom: 1rem;
}

.segmented a {
    padding: 0.7rem 0.8rem;
    text-align: center;
    font-weight: 700;
}

.segmented a.active {
    background: var(--bg-elevated);
}

.grid-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.85fr);
    gap: 1.1rem;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.section-title h1,
.section-title h2,
.friendship-card h2,
.reward-card h3,
.panel h2 {
    margin: 0;
}

.card-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.friendship-card {
    display: grid;
    gap: 0.85rem;
    position: relative;
    overflow: hidden;
}

.friendship-card::after,
.overview-card::after,
.panel::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 38%);
    opacity: 0.75;
}

.friendship-balance-card {
    display: grid;
    gap: 0.2rem;
    padding: 0.85rem 0.95rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(180deg, color-mix(in srgb, var(--primary) 10%, var(--bg-elevated)) 0%, color-mix(in srgb, var(--bg-elevated) 94%, transparent) 100%);
}

.friendship-balance-card strong {
    font-size: 2rem;
    line-height: 1;
}

.friendship-balance-card small {
    font-weight: 700;
}

.friendship-card:hover {
    box-shadow: var(--shadow-strong);
}

.overview-band {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1rem;
}

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

.overview-card {
    position: relative;
    overflow: hidden;
    display: grid;
    gap: 0.4rem;
    padding: 1.1rem 1.15rem;
    border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 90%, transparent);
    box-shadow: var(--shadow);
}

.overview-card.primary {
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--primary) 14%, var(--bg-elevated)) 0%, color-mix(in srgb, var(--bg-elevated) 94%, transparent) 56%),
        color-mix(in srgb, var(--bg-elevated) 92%, transparent);
}

.overview-card h2 {
    margin: 0;
    font-size: clamp(1.4rem, 3vw, 2rem);
    line-height: 1.05;
}

.card-head,
.timeline-item {
    justify-content: space-between;
    align-items: flex-start;
}

.score-chip,
.check-tile,
.reward-card,
.code-panel,
.request-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 78%, transparent);
}

.score-chip,
.check-tile {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem;
}

.request-stack {
    display: grid;
    gap: 0.85rem;
}

.request-card {
    display: grid;
    gap: 0.85rem;
    padding: 0.95rem;
}

.friend-search-panel {
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent-soft) 80%, transparent) 0%, var(--panel) 100%);
}

.user-card-list {
    display: grid;
    gap: 0.7rem;
    max-height: 22rem;
    overflow: auto;
    padding-right: 0.1rem;
}

.user-card-pick {
    width: 100%;
    text-align: left;
    display: grid;
    gap: 0.35rem;
    padding: 0.95rem 1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 85%, transparent);
    color: var(--text);
    box-shadow: none;
}

.user-card-pick.active {
    border-color: color-mix(in srgb, var(--primary) 55%, var(--line));
    background: linear-gradient(180deg, color-mix(in srgb, var(--primary) 14%, var(--bg-elevated)) 0%, color-mix(in srgb, var(--bg-elevated) 94%, transparent) 100%);
    box-shadow: 0 10px 24px rgba(31, 122, 140, 0.16);
}

.user-card-main {
    display: flex;
    justify-content: space-between;
    gap: 0.8rem;
    align-items: center;
}

.user-card-meta {
    color: var(--muted);
    font-size: 0.92rem;
}

.check-tile {
    align-items: center;
}

.check-tile input {
    width: 1.1rem;
    height: 1.1rem;
}

.score-panel {
    min-height: 10rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.big-score {
    margin: 0;
    font-size: clamp(2.4rem, 8vw, 3.9rem);
    font-weight: 800;
}

.plus {
    color: var(--success);
}

.minus {
    color: var(--danger);
}

.template-row {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.template-button {
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg-elevated) 78%, transparent);
    color: var(--text);
    padding: 0.9rem;
    display: grid;
    gap: 0.45rem;
    text-align: left;
    cursor: pointer;
    min-height: 5.75rem;
}

.template-button.is-positive {
    background: linear-gradient(180deg, color-mix(in srgb, var(--success) 10%, var(--bg-elevated)) 0%, color-mix(in srgb, var(--bg-elevated) 94%, transparent) 100%);
}

.template-button.is-negative {
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 12%, var(--bg-elevated)) 0%, color-mix(in srgb, var(--bg-elevated) 94%, transparent) 100%);
}

.template-kicker {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--primary-strong);
}

.two-col {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 0.9rem;
}

.timeline-item {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--line);
}

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

.delta {
    font-size: 1.15rem;
    font-weight: 800;
}

.reward-card {
    padding: 0.9rem;
    display: grid;
    gap: 0.8rem;
}

.compact button {
    width: 100%;
}

.admin-actions {
    min-width: 9rem;
}

.plain-list {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: 0.65rem;
}

.tip-panel {
    background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, var(--panel)) 0%, var(--panel) 100%);
}

.friendship-hint,
.insight-panel {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
}

.social-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 0.9rem 1rem;
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
    display: grid;
    gap: 0.45rem;
    min-height: 8rem;
}

.social-card .ghost-button {
    width: auto;
}

.idea-grid,
.social-grid {
    display: grid;
    gap: 1rem;
}

.spark-strip {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
    gap: 1rem;
}

.spark-card {
    display: grid;
    gap: 0.85rem;
    padding: 1.05rem 1.1rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: linear-gradient(180deg, color-mix(in srgb, var(--bg-elevated) 90%, transparent) 0%, color-mix(in srgb, var(--bg-elevated) 98%, transparent) 100%);
    box-shadow: var(--shadow);
}

.spark-card-primary {
    background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 16%, var(--bg-elevated)) 0%, color-mix(in srgb, var(--primary) 8%, var(--bg-elevated)) 100%);
}

.spark-head,
.wrap-actions {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.spark-head {
    align-items: flex-start;
}

.spark-head h2 {
    margin: 0.1rem 0 0;
}

.spark-emoji {
    width: 2.8rem;
    height: 2.8rem;
    display: grid;
    place-items: center;
    font-size: 1.35rem;
    border-radius: 999px;
    background: color-mix(in srgb, var(--bg-elevated) 86%, transparent);
    border: 1px solid var(--line);
}

.idea-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.hint-good {
    border-color: color-mix(in srgb, var(--success) 45%, var(--line));
}

.hint-warning {
    border-color: color-mix(in srgb, var(--accent) 65%, var(--line));
}

.hint-calm {
    border-color: color-mix(in srgb, var(--primary) 45%, var(--line));
}

.empty-state,
.legal-panel {
    padding: 1.35rem;
}

.flash {
    padding: 0.9rem 1rem;
    border-radius: var(--radius);
    font-weight: 700;
    box-shadow: var(--shadow);
}

.flash-success {
    background: color-mix(in srgb, var(--success) 15%, transparent);
    color: var(--success);
}

.flash-error {
    background: color-mix(in srgb, var(--danger) 15%, transparent);
    color: var(--danger);
}

.back-link {
    display: inline-block;
    margin-bottom: 0.7rem;
    color: var(--primary-strong);
    font-weight: 700;
}

.code-panel {
    margin: 0;
    padding: 1rem;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.toggle-row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 0.9rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--bg-elevated) 82%, transparent);
}

.toggle-row input {
    width: 1.2rem;
    height: 1.2rem;
}

.footer {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    padding: 1.6rem 0 0.5rem;
    color: var(--muted);
    font-size: 0.94rem;
}

.legal-layout {
    max-width: 780px;
}

.profile-card {
    border-top: 4px solid var(--profile-accent, var(--primary));
}

.page-dashboard .topbar,
.page-friendship .topbar,
.page-admin .topbar,
.page-account .topbar {
    background: color-mix(in srgb, var(--bg) 62%, transparent);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.page-dashboard .section-title,
.page-friendship .section-title {
    margin-bottom: 0.1rem;
}

.page-dashboard .profile-card h2,
.page-friendship .panel h2,
.page-admin .panel h2 {
    font-size: 1.15rem;
}

.mobile-tabbar {
    display: none;
}

.admin-metric-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

@media (max-width: 860px) {
    .hero,
    .grid-layout,
    .two-col,
    .overview-band,
    .compact-band,
    .spark-strip {
        grid-template-columns: 1fr;
    }

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

    .auth-panel {
        justify-self: stretch;
        max-width: none;
    }

    .topbar,
    .topbar-actions,
    .brand-wrap,
    .inline-actions,
    .wrap-actions,
    .card-head,
    .timeline-item {
        align-items: flex-start;
        flex-direction: column;
    }

    .app-shell {
        width: min(100%, calc(100% - 1rem));
        padding-bottom: 5.5rem;
    }

    .friendship-balance-card strong,
    .overview-card h2 {
        font-size: 1.6rem;
    }

    .topbar-actions {
        width: 100%;
    }

    .topbar-actions .ghost-link,
    .topbar-actions form,
    .topbar-actions .ghost-button {
        width: 100%;
    }

    .install-button {
        width: 100%;
    }

    .footer {
        justify-content: flex-start;
        gap: 0.85rem;
        flex-wrap: wrap;
        font-size: 0.82rem;
        opacity: 0.82;
        padding-top: 0.8rem;
    }

    .mobile-tabbar {
        position: fixed;
        left: 0.75rem;
        right: 0.75rem;
        bottom: 0.75rem;
        display: grid;
        grid-auto-flow: column;
        grid-auto-columns: 1fr;
        gap: 0.65rem;
        padding: 0.55rem;
        border: 1px solid var(--line);
        border-radius: 14px;
        background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
        box-shadow: var(--shadow-strong);
        backdrop-filter: blur(14px);
        z-index: 40;
    }

    .mobile-tabbar a {
        text-align: center;
        padding: 0.8rem 0.6rem;
        border-radius: 10px;
        color: var(--muted);
        font-weight: 700;
    }

    .mobile-tabbar a.active {
        background: color-mix(in srgb, var(--primary) 16%, var(--bg-elevated));
        color: var(--primary-strong);
    }
}