/* ============================================================
   Reunite — design system
   Palette inspired by warm-paper, navy-teal, with sienna accent.
   ============================================================ */

:root {
    /* surfaces */
    --bg: #FAF9F6;
    --surface: #FFFFFF;
    --surface-warm: #F5F1EA;

    /* ink */
    --ink: #0F172A;
    --ink-muted: #475569;
    --ink-faint: #94A3B8;
    --border: #E5E7EB;
    --border-strong: #CBD5E1;

    /* brand */
    --primary: #1B4965;          /* deep navy-teal: trust, calm */
    --primary-hover: #143851;
    --primary-soft: #E8EEF3;
    --accent: #BF6B45;           /* warm sienna: hope, urgency */
    --accent-hover: #A55733;
    --accent-soft: #F6E9DF;

    /* semantics */
    --success: #4F8B57;
    --success-soft: #E8F1E9;
    --warn: #B8860B;
    --warn-soft: #F7EFD9;
    --danger: #B23B3B;

    /* shadow */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 2px 8px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);

    /* radius */
    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 16px;

    /* type */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--ink-muted);
    background: var(--bg);
    font-feature-settings: 'cv11', 'ss01', 'ss03';
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4 {
    color: var(--ink);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.015em;
}
h1 { font-size: 2.25rem; letter-spacing: -0.025em; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.125rem; }
h4 { font-size: 1rem; }

.tnum { font-variant-numeric: tabular-nums; }
.eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink-faint);
}

/* ============================================================
   Layout
   ============================================================ */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
}
.topbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}
.brand {
    display: flex;
    align-items: baseline;
    gap: 0.625rem;
}
.brand-mark {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}
.brand-tag {
    font-size: 0.8125rem;
    color: var(--ink-faint);
    font-weight: 400;
}
.demo-tag {
    font-size: 0.75rem;
    color: white;
    background: #DC2626;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    box-shadow: 0 1px 3px rgba(220, 38, 38, 0.3);
    white-space: nowrap;
}
@media (max-width: 600px) {
    .demo-tag {
        font-size: 0.6875rem;
        padding: 0.25rem 0.5rem;
    }
}

.demo-notice {
    margin: -0.5rem 0 1.25rem;
    padding: 0.875rem 1rem;
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-left: 3px solid #DC2626;
    border-radius: var(--r-sm);
    font-size: 0.875rem;
    color: #7F1D1D;
    line-height: 1.55;
}
.demo-notice strong { color: #991B1B; font-weight: 700; }

.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2.5rem 2rem 2rem;
}
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem 0.35rem 0.7rem;
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-radius: 999px;
    margin-bottom: 1.25rem;
}
.eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #DC2626;
    box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.5);
    animation: pulse-dot 2s ease-out infinite;
}
@keyframes pulse-dot {
    0%   { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.5); }
    70%  { box-shadow: 0 0 0 6px rgba(220, 38, 38, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0); }
}
.eyebrow-status {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #991B1B;
}
.hero-notice {
    margin-top: 1.25rem;
    padding: 0.875rem 1rem;
    background: #FEF2F2;
    border: 1px solid #FECACA;
    border-left: 3px solid #DC2626;
    border-radius: var(--r-sm);
    font-size: 0.9375rem;
    line-height: 1.55;
    color: #7F1D1D;
    max-width: 64ch;
}
.hero-notice strong { color: #991B1B; font-weight: 700; }
.hero h1 {
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: var(--ink);
    max-width: 36ch;
    line-height: 1.15;
}
.hero p {
    margin-top: 0.875rem;
    font-size: 1.0625rem;
    color: var(--ink-muted);
    max-width: 56ch;
    line-height: 1.55;
}

.stats {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem 2.5rem;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}
.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    padding: 1.25rem 1.5rem;
}
.stat .num {
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    line-height: 1;
}
.stat .label {
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--ink-faint);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem 4rem;
}

/* ============================================================
   Tabs (underline style)
   ============================================================ */
.tabs {
    display: flex;
    gap: 0;
    margin-bottom: 2rem;
}
.tab-btn {
    padding: 0.875rem 1.25rem;
    border: none;
    background: none;
    color: var(--ink-muted);
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color 120ms ease, border-color 120ms ease;
    white-space: nowrap;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active {
    color: var(--ink);
    border-bottom-color: var(--primary);
    font-weight: 600;
}
.tab-content { display: none; animation: fadeIn 200ms ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ============================================================
   Cards
   ============================================================ */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 1.5rem 1.75rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}
.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-strong);
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 0.875rem;
}
.card-header h3 {
    font-size: 1.125rem;
    color: var(--ink);
    font-weight: 600;
}
.card-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border: 1px solid transparent;
}
.badge-parent { background: var(--primary-soft); color: var(--primary); border-color: rgba(27, 73, 101, 0.15); }
.badge-child  { background: var(--accent-soft); color: var(--accent-hover); border-color: rgba(191, 107, 69, 0.18); }

.card-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.5rem 1.25rem;
    margin-bottom: 0.875rem;
}
.card-info span {
    font-size: 0.875rem;
    color: var(--ink-muted);
}
.card-info span strong {
    color: var(--ink);
    font-weight: 500;
}

.card-features {
    margin-top: 0.625rem;
    padding: 0.625rem 0.875rem;
    background: var(--surface-warm);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    font-size: 0.875rem;
    color: var(--ink);
}
.card-features strong { color: var(--accent-hover); font-weight: 600; }

.card-desc {
    font-size: 0.9375rem;
    color: var(--ink-muted);
    line-height: 1.65;
    padding-top: 0.875rem;
    border-top: 1px solid var(--border);
}

/* ============================================================
   Match score
   ============================================================ */
.score-badge {
    display: inline-flex;
    align-items: baseline;
    gap: 0.4rem;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    border: 1px solid transparent;
    font-variant-numeric: tabular-nums;
}
.score-label { font-size: 0.75rem; opacity: 0.75; font-weight: 500; }
.score-high { background: var(--success-soft); color: var(--success); border-color: rgba(79, 139, 87, 0.18); }
.score-mid  { background: var(--warn-soft);    color: var(--warn);    border-color: rgba(184, 134, 11, 0.18); }
.score-low  { background: #F1F5F9;             color: var(--ink-muted); border-color: var(--border); }

/* ============================================================
   Forms
   ============================================================ */
.form-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}
.form-section h2 {
    font-size: 1.25rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
}
.form-section p { color: var(--ink-muted); margin-bottom: 1.25rem; font-size: 0.9375rem; }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem 1.25rem;
}
.form-group { margin-bottom: 0; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 0.375rem;
    color: var(--ink);
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--border-strong);
    border-radius: var(--r-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--ink);
    background: var(--surface);
    transition: border-color 120ms ease, box-shadow 120ms ease;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--ink-faint); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 73, 101, 0.12);
}
.form-group textarea { resize: vertical; min-height: 96px; line-height: 1.55; }

/* type-toggle (segmented) */
.type-toggle {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    background: var(--surface-warm);
    padding: 4px;
    border-radius: var(--r-sm);
    border: 1px solid var(--border);
    width: fit-content;
}
.type-toggle label {
    padding: 0.5rem 1rem;
    text-align: center;
    border-radius: calc(var(--r-sm) - 2px);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--ink-muted);
    transition: all 120ms ease;
    user-select: none;
}
.type-toggle input { display: none; }
.type-toggle input:checked + label {
    background: var(--surface);
    color: var(--ink);
    box-shadow: var(--shadow-sm);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.625rem 1.25rem;
    border: 1px solid transparent;
    border-radius: var(--r-sm);
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 120ms ease, border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
    line-height: 1.2;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:focus-visible { box-shadow: 0 0 0 3px rgba(27, 73, 101, 0.25); }

.btn-accent {
    background: var(--accent);
    color: white;
}
.btn-accent:hover { background: var(--accent-hover); }

.btn-secondary {
    background: var(--surface);
    color: var(--ink);
    border-color: var(--border-strong);
}
.btn-secondary:hover { background: var(--surface-warm); border-color: var(--ink-faint); }

.btn-ghost {
    background: transparent;
    color: var(--ink-muted);
    border-color: transparent;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}
.btn-ghost:hover { color: var(--ink); background: var(--surface-warm); }

.btn-block { width: 100%; }
.btn-row { display: flex; gap: 0.75rem; margin-top: 1rem; }

.btn-search { /* legacy alias */ background: var(--primary); color: white; }
.btn-search:hover { background: var(--primary-hover); }

.btn-match {
    padding: 0.4rem 0.875rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--r-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 120ms ease;
    font-family: inherit;
}
.btn-match:hover { background: var(--primary-hover); }
.btn-match.btn-match-accent { background: var(--accent); }
.btn-match.btn-match-accent:hover { background: var(--accent-hover); }

/* ============================================================
   Results header / states
   ============================================================ */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 1.25rem;
}
.results-header h2 { color: var(--ink); }

.loading, .empty {
    text-align: center;
    padding: 4rem 1.5rem;
    color: var(--ink-muted);
    background: var(--surface);
    border: 1px dashed var(--border-strong);
    border-radius: var(--r-lg);
}
.loading { font-size: 0.9375rem; }
.empty h3 {
    font-size: 1.0625rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.empty p { font-size: 0.9375rem; max-width: 44ch; margin: 0 auto 0.5rem; }
.empty .btn { margin-top: 1.25rem; }

/* suggestions panel under My Entries */
.suggestions {
    margin: -0.5rem 0 1.5rem 1.5rem;
    padding: 1rem 1.25rem 0.5rem;
    border-left: 2px solid var(--accent);
    background: linear-gradient(90deg, var(--surface-warm) 0%, transparent 100%);
    border-radius: 0 var(--r-md) var(--r-md) 0;
}
.suggestions-header {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 0.625rem;
    flex-wrap: wrap;
}
.suggestions-header h4 {
    font-size: 0.8125rem;
    color: var(--accent-hover);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}
.suggestions-hint {
    font-size: 0.75rem;
    color: var(--ink-faint);
}
.suggestions-body .card { margin-bottom: 0.625rem; }
.suggestions-empty {
    padding: 0.75rem 0;
    font-size: 0.875rem;
    color: var(--ink-muted);
    font-style: italic;
}

/* pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.875rem;
    margin: 1.5rem 0 0.5rem;
    padding: 0.75rem 0;
}
.pagination .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}
.pagination .btn[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}
.pagination-meta {
    font-size: 0.875rem;
    color: var(--ink-muted);
    font-variant-numeric: tabular-nums;
}

/* skeleton loader */
.skel {
    height: 96px;
    background: linear-gradient(90deg, #f1f3f5 0%, #e9ecef 50%, #f1f3f5 100%);
    background-size: 200% 100%;
    border-radius: var(--r-md);
    animation: shimmer 1.4s linear infinite;
    margin-bottom: 0.75rem;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(2px);
    z-index: 100;
    align-items: center;
    justify-content: center;
    animation: fadeIn 160ms ease;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--surface);
    border-radius: var(--r-lg);
    padding: 2rem;
    max-width: 760px;
    width: 92%;
    max-height: 84vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}
.modal h2 {
    margin-bottom: 1.25rem;
    color: var(--ink);
    padding-right: 2rem;
}
.modal .close-btn {
    float: right;
    background: none;
    border: none;
    font-size: 1.75rem;
    line-height: 1;
    cursor: pointer;
    color: var(--ink-faint);
    padding: 0;
    transition: color 120ms ease;
}
.modal .close-btn:hover { color: var(--ink); }

/* ============================================================
   Chat
   ============================================================ */
.chat-banner {
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.chat-entry-badge {
    padding: 0.45rem 0.875rem;
    background: var(--primary-soft);
    border-radius: var(--r-sm);
    font-size: 0.8125rem;
    color: var(--primary);
    font-weight: 500;
}

.chat-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.25rem;
    min-height: 620px;
}
.chat-sidebar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    padding: 1.5rem;
    overflow-y: auto;
    max-height: 720px;
}
.chat-sidebar h3 {
    font-size: 1rem;
    color: var(--ink);
    margin-bottom: 0.375rem;
}
.chat-hint {
    font-size: 0.8125rem;
    color: var(--ink-muted);
    margin-bottom: 1.25rem;
    line-height: 1.55;
}
.chat-sidebar .form-group { margin-bottom: 0.75rem; }
.chat-sidebar .form-group label { font-size: 0.75rem; margin-bottom: 0.25rem; }
.chat-sidebar .form-group input,
.chat-sidebar .form-group select,
.chat-sidebar .form-group textarea {
    padding: 0.45rem 0.6rem;
    font-size: 0.875rem;
}
.chat-sidebar .form-group textarea { min-height: 60px; }
.chat-sidebar .type-toggle { margin-bottom: 1rem; }
.chat-sidebar .type-toggle label { padding: 0.4rem 0.75rem; font-size: 0.8125rem; }

.chat-main {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-lg);
    overflow: hidden;
}
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}
.chat-welcome {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--ink-muted);
}
.chat-welcome h3 {
    font-size: 1.125rem;
    color: var(--ink);
    margin-bottom: 0.5rem;
}
.chat-welcome p {
    margin-bottom: 0.4rem;
    font-size: 0.9375rem;
    max-width: 44ch;
    margin-left: auto;
    margin-right: auto;
}

.chat-bubble {
    max-width: 82%;
    padding: 0.625rem 1rem;
    border-radius: 14px;
    line-height: 1.55;
    animation: bubbleIn 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes bubbleIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: none; }
}
.chat-assistant {
    align-self: flex-start;
    background: var(--surface-warm);
    color: var(--ink);
    border-bottom-left-radius: 4px;
}
.chat-user {
    align-self: flex-end;
    background: var(--primary);
    color: white;
    border-bottom-right-radius: 4px;
}
.chat-user .chat-label { color: rgba(255,255,255,0.75); }
.chat-label {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--ink-faint);
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.chat-text { font-size: 0.9375rem; }

.typing-dots {
    color: var(--ink-faint);
    font-style: italic;
}

.chat-input-area {
    display: flex;
    gap: 0.5rem;
    padding: 0.875rem 1rem;
    border-top: 1px solid var(--border);
    background: var(--surface-warm);
}
.chat-input-area textarea {
    flex: 1;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--border-strong);
    border-radius: var(--r-sm);
    font-size: 0.9375rem;
    font-family: inherit;
    resize: none;
    min-height: unset;
    background: var(--surface);
}
.chat-input-area textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 73, 101, 0.12);
}
.chat-input-area .btn {
    padding: 0.625rem 1.25rem;
    white-space: nowrap;
    align-self: flex-end;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
    .hero { padding: 2.5rem 1.5rem 2rem; }
    .hero h1 { font-size: 2rem; }
    .container { padding: 1rem 1.5rem 3rem; }
    .stats { padding: 0 1.5rem 2rem; gap: 0.75rem; }
    .form-section { padding: 1.5rem; }
}

@media (max-width: 800px) {
    .chat-layout {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    .chat-sidebar { max-height: none; }
    .chat-messages { min-height: 400px; }
}

@media (max-width: 600px) {
    .topbar { padding: 0.875rem 1.25rem; }
    .hero { padding: 2rem 1.25rem 1.5rem; }
    .hero h1 { font-size: 1.75rem; }
    .hero p { font-size: 1rem; }
    .container { padding: 0.5rem 1.25rem 2.5rem; }
    .stats {
        padding: 0 1.25rem 1.5rem;
        grid-template-columns: 1fr;
    }
    .form-grid { grid-template-columns: 1fr; }
    .form-section { padding: 1.25rem; }
    .card { padding: 1.25rem; }
    .card-header { flex-direction: column; gap: 0.625rem; }
    .btn-row { flex-direction: column; }
    .modal { padding: 1.5rem; }
}