@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    color-scheme: light;
    /* primitives */
    --paper-50: oklch(0.995 0.004 75);
    --paper-100: oklch(0.97 0.014 75);
    --paper-200: oklch(0.93 0.02 70);
    --ink-900: oklch(0.22 0.025 50);
    --ink-700: oklch(0.38 0.02 50);
    --ink-500: oklch(0.55 0.018 50);
    --ink-300: oklch(0.72 0.014 55);

    --coral-500: oklch(0.68 0.19 40);
    --coral-600: oklch(0.6 0.19 38);
    --coral-100: oklch(0.94 0.05 45);

    --sky-500: oklch(0.68 0.13 232);
    --sky-600: oklch(0.58 0.13 232);
    --sky-100: oklch(0.94 0.03 232);

    --mint-500: oklch(0.68 0.14 165);
    --mint-100: oklch(0.94 0.05 165);

    --danger-500: oklch(0.6 0.2 25);
    --danger-100: oklch(0.95 0.04 25);

    /* semantic */
    --bg: var(--paper-100);
    --surface: var(--paper-50);
    --surface-sunken: var(--paper-200);
    --border: oklch(0.22 0.025 50 / 0.1);
    --border-subtle: oklch(0.22 0.025 50 / 0.06);
    --border-strong: oklch(0.22 0.025 50 / 0.16);

    --text: var(--ink-900);
    --text-muted: var(--ink-700);
    --text-faint: var(--ink-500);

    --brand: var(--coral-500);
    --brand-hover: var(--coral-600);
    --accent: var(--sky-500);
    --accent-hover: var(--sky-600);
    --success: var(--mint-500);
    --danger: var(--danger-500);
    --danger-bg: var(--danger-100);

    --radius-lg: 16px;
    --radius-md: 12px;
    --radius-sm: 9px;

    --shadow-paper: 0 1px 2px oklch(0.3 0.05 50 / 0.06), 0 8px 20px -8px oklch(0.3 0.06 50 / 0.22);
    --shadow-paper-hover: 0 2px 4px oklch(0.3 0.05 50 / 0.08), 0 14px 28px -10px oklch(0.3 0.08 50 / 0.28);

    --font-display: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
    --font-body: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;

    --dot-color: oklch(0.22 0.02 50 / 0.05);
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --paper-50: oklch(0.23 0.018 50);
    --paper-100: oklch(0.16 0.015 50);
    --paper-200: oklch(0.13 0.014 50);
    --ink-900: oklch(0.93 0.01 50);
    --ink-700: oklch(0.74 0.015 50);
    --ink-500: oklch(0.58 0.015 50);
    --ink-300: oklch(0.42 0.014 50);

    --coral-500: oklch(0.7 0.18 40);
    --coral-600: oklch(0.62 0.18 38);
    --coral-100: oklch(0.28 0.07 40);

    --sky-500: oklch(0.72 0.12 232);
    --sky-600: oklch(0.62 0.12 232);
    --sky-100: oklch(0.28 0.06 232);

    --mint-500: oklch(0.7 0.13 165);
    --mint-100: oklch(0.28 0.07 165);

    --danger-500: oklch(0.68 0.19 25);
    --danger-100: oklch(0.28 0.09 25);

    --border: oklch(1 0 0 / 0.1);
    --border-subtle: oklch(1 0 0 / 0.06);
    --border-strong: oklch(1 0 0 / 0.18);

    --shadow-paper: 0 1px 2px oklch(0 0 0 / 0.3), 0 8px 20px -8px oklch(0 0 0 / 0.45);
    --shadow-paper-hover: 0 2px 4px oklch(0 0 0 / 0.35), 0 14px 28px -10px oklch(0 0 0 / 0.5);

    --dot-color: oklch(1 0 0 / 0.06);
}

* { box-sizing: border-box; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    background-image: radial-gradient(circle at 1px 1px, var(--dot-color) 1px, transparent 0);
    background-size: 22px 22px;
    margin: 0;
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.15s, color 0.15s;
}

a { color: var(--accent); }

/* header — warm shelf strip */
header {
    background: linear-gradient(180deg, oklch(0.26 0.03 55), oklch(0.18 0.025 50));
    color: white;
    padding: 0 26px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    height: 66px;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 3px 0 var(--brand), 0 10px 24px -12px rgba(0,0,0,0.5);
}
header .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.01em;
}
header .brand .mark {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--brand), oklch(0.75 0.16 55));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    font-family: var(--font-display);
    font-weight: 800;
    color: white;
    box-shadow: 0 2px 6px oklch(0.3 0.1 45 / 0.4);
    transform: rotate(-4deg);
}
header nav {
    display: flex;
    gap: 4px;
    align-items: center;
}
header nav a, header nav span {
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 8px 13px;
    border-radius: var(--radius-sm);
    transition: background 0.15s, color 0.15s;
}
header nav a:hover { background: rgba(255,255,255,0.1); color: white; }
header nav .username {
    color: white;
    background: rgba(255,255,255,0.12);
    padding: 8px 13px;
    border-radius: var(--radius-sm);
}
header nav .cta {
    background: var(--brand);
    color: white !important;
    margin-left: 4px;
    box-shadow: 0 2px 8px oklch(0.3 0.1 45 / 0.35);
}
header nav .cta:hover { background: var(--brand-hover); }

main {
    max-width: 980px;
    margin: 0 auto;
    padding: 36px 24px 90px;
}

h1, h2, h3 { margin-top: 0; letter-spacing: -0.01em; font-family: var(--font-display); }
h1 { font-size: 27px; font-weight: 800; }
h2 { font-size: 19px; font-weight: 700; }

.hero {
    text-align: center;
    padding: 34px 20px 40px;
}
.hero .mark-lg {
    width: 60px;
    height: 60px;
    margin: 0 auto 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--brand), oklch(0.75 0.16 55));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    font-family: var(--font-display);
    font-weight: 800;
    color: white;
    box-shadow: var(--shadow-paper);
    transform: rotate(-5deg);
}
.hero h1 { font-size: 31px; margin-bottom: 10px; }
.hero p { color: var(--text-muted); font-size: 15.5px; max-width: 460px; margin: 0 auto; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 26px;
    margin-bottom: 22px;
    box-shadow: var(--shadow-paper);
}
.card > h2:first-child, .card > h1:first-child { margin-bottom: 14px; }
.card-hint {
    color: var(--text-muted);
    font-size: 13.5px;
    margin: -6px 0 16px;
}

.auth-card { max-width: 440px; margin: 0 auto; padding: 10px; }
.auth-tabs {
    display: flex;
    background: var(--surface-sunken);
    border-radius: var(--radius-md);
    padding: 4px;
    margin-bottom: 20px;
    gap: 4px;
}
.auth-tab {
    flex: 1;
    text-align: center;
    padding: 10px 0;
    border-radius: 8px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    color: var(--text-muted);
    background: transparent;
    border: none;
    transition: all 0.15s;
}
.auth-tab.active { background: var(--surface); color: var(--text); box-shadow: 0 2px 6px oklch(0.3 0.05 50 / 0.12); }
.auth-pane { display: none; padding: 16px; }
.auth-pane.active { display: block; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(212px, 1fr));
    gap: 20px;
    padding: 4px;
}

/* sticky-note project cards: slight tilt, straighten + lift on hover */
.item {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    overflow: hidden;
    box-shadow: var(--shadow-paper);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.grid .item:nth-child(4n+1) { transform: rotate(-1.1deg); }
.grid .item:nth-child(4n+2) { transform: rotate(0.8deg); }
.grid .item:nth-child(4n+3) { transform: rotate(-0.6deg); }
.grid .item:nth-child(4n+4) { transform: rotate(1.1deg); }
.item:hover { transform: rotate(0deg) translateY(-3px) !important; box-shadow: var(--shadow-paper-hover); z-index: 2; }

.item .thumb {
    position: relative;
    height: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 30px;
    font-weight: 800;
    color: oklch(0.3 0.03 50 / 0.55);
}
.item .thumb-img {
    object-fit: cover;
    display: block;
    width: 100%;
    color: transparent;
}
.item .thumb:not(.thumb-img)::before {
    /* folded corner */
    content: "";
    position: absolute;
    top: 0; right: 0;
    width: 0; height: 0;
    border-style: solid;
    border-width: 0 18px 18px 0;
    border-color: transparent oklch(1 0 0 / 0.35) transparent transparent;
}
.item .thumb:not(.thumb-img)::after {
    /* pin */
    content: "";
    position: absolute;
    top: 8px; left: 50%;
    transform: translateX(-50%);
    width: 9px; height: 9px;
    border-radius: 50%;
    background: oklch(0.3 0.03 50 / 0.35);
    box-shadow: 0 1px 2px oklch(0 0 0 / 0.3);
}
.item .body { padding: 13px 14px 15px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.item h3 {
    margin: 0;
    font-size: 14.5px;
    font-weight: 700;
    word-break: break-word;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.item .meta { font-size: 12px; color: var(--text-faint); }
.item .actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 4px; }
.item select.add-to-studio { margin: 0; padding: 5px 6px; font-size: 12px; width: auto; flex: 1; min-width: 92px; }

.empty-state {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
    padding: 36px 12px;
    border: 1.5px dashed var(--border-strong);
    border-radius: var(--radius-md);
    background: var(--surface-sunken);
}

button, .btn {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 9px 15px;
    font-family: var(--font-body);
    font-size: 13.5px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background 0.15s, box-shadow 0.15s, transform 0.05s;
    line-height: 1.2;
}
button:hover, .btn:hover { background: var(--accent-hover); }
button:active, .btn:active { transform: scale(0.98); }
button:focus-visible, .btn:focus-visible, input:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
}
button.primary, .btn.primary { background: var(--brand); }
button.primary:hover, .btn.primary:hover { background: var(--brand-hover); }
button.secondary, .btn.secondary { background: var(--surface-sunken); color: var(--text); border: 1px solid var(--border); }
button.secondary:hover, .btn.secondary:hover { background: var(--paper-200); }
button.danger, .btn.danger { background: transparent; color: var(--danger); border: 1px solid var(--danger-bg); }
button.danger:hover, .btn.danger:hover { background: var(--danger-bg); }
button:disabled { opacity: 0.55; cursor: default; }

label {
    display: block;
    font-size: 12.5px;
    font-weight: 700;
    color: var(--text-muted);
    margin: 0 0 6px;
}
input, textarea, select {
    width: 100%;
    padding: 10px 13px;
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    font-size: 14px;
    font-family: var(--font-body);
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px oklch(0.68 0.13 232 / 0.18);
}
input[type="file"] { padding: 8px; background: var(--surface-sunken); cursor: pointer; }

.row { display: flex; gap: 20px; flex-wrap: wrap; }
.row > .card { flex: 1; min-width: 280px; }

.error {
    color: var(--danger);
    background: var(--danger-bg);
    border-radius: var(--radius-sm);
    padding: 9px 13px;
    font-size: 13px;
    margin-bottom: 12px;
}
.hidden { display: none !important; }

.badge {
    display: inline-flex;
    align-items: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--surface-sunken);
    color: var(--text-muted);
}
.badge.published { background: var(--mint-100); color: oklch(0.42 0.13 165); }

.section-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 15px;
    padding: 0 4px;
}
.section-title h2 { margin: 0; }
.section-title .count { color: var(--text-faint); font-size: 13px; }

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 18px;
}
.comment {
    display: flex;
    gap: 12px;
}
.comment-avatar {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 15px;
    color: white;
}
.comment-body { flex: 1; min-width: 0; }
.comment-meta {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: 13px;
}
.comment-meta a { font-weight: 700; color: var(--text); text-decoration: none; }
.comment-meta a:hover { color: var(--accent); }
.comment-date { color: var(--text-faint); font-size: 12px; }
.comment-text {
    font-size: 14px;
    white-space: pre-wrap;
    word-break: break-word;
    margin-top: 2px;
}
.comment-delete {
    background: transparent;
    color: var(--text-faint);
    border: none;
    padding: 2px 0;
    font-size: 12px;
    cursor: pointer;
    margin-top: 4px;
}
.comment-delete:hover { color: var(--danger); }
.comment-image {
    display: block;
    max-width: 220px;
    max-height: 220px;
    border-radius: var(--radius-sm);
    margin-top: 6px;
    border: 1px solid var(--border);
}
.comment-avatar { object-fit: cover; }

.unread-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 17px;
    height: 17px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--brand);
    color: white;
    font-size: 11px;
    font-weight: 800;
    margin-left: 4px;
}

.dm-page main { max-width: 720px; }
.dm-thread {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 60vh;
    overflow-y: auto;
    padding: 4px;
}
.dm-bubble {
    max-width: 75%;
    padding: 9px 13px;
    border-radius: var(--radius-md);
    font-size: 14px;
    white-space: pre-wrap;
    word-break: break-word;
}
.dm-bubble.mine {
    align-self: flex-end;
    background: var(--brand);
    color: white;
    border-bottom-right-radius: 3px;
}
.dm-bubble.theirs {
    align-self: flex-start;
    background: var(--surface-sunken);
    color: var(--text);
    border-bottom-left-radius: 3px;
}
.dm-bubble .dm-time {
    display: block;
    font-size: 10.5px;
    opacity: 0.7;
    margin-top: 3px;
}
.dm-conversation {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 6px;
    border-bottom: 1px solid var(--border-subtle);
    text-decoration: none;
    color: var(--text);
}
.dm-conversation:hover { background: var(--surface-sunken); }
.dm-conversation .dm-conv-avatar {
    width: 42px; height: 42px; border-radius: 12px;
    object-fit: cover; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display); font-weight: 800; color: white; font-size: 17px;
}
.dm-conversation .dm-conv-info { flex: 1; min-width: 0; }
.dm-conversation .dm-conv-name { font-weight: 700; }
.dm-conversation .dm-conv-preview {
    color: var(--text-faint);
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.avatar-upload-wrap { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }

.accent-swatch {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.accent-swatch.active { border-color: var(--text); }

@media (max-width: 560px) {
    main { padding: 22px 16px 64px; }
    header { padding: 0 14px; height: auto; min-height: 62px; }
    .row { flex-direction: column; }
    .grid .item { transform: none !important; }
}