:root {
    --dk-bg: #f7f3ec;
    --dk-paper: #fffaf3;
    --dk-line: #cdb79e;
    --dk-line-soft: #e2d8cd;
    --dk-indigo: #264e70;
    --dk-terracotta: #c6492c;
    --dk-text: #1d1a15;
    --dk-muted: #5f6f7e;
    --dk-shadow: 0 10px 24px rgba(38, 78, 112, 0.08);
    --dk-radius-lg: 18px;
    --dk-radius-md: 12px;
    --dk-radius-pill: 40px;

    /* Backward-compatible aliases used by existing page styles */
    --bg: var(--dk-bg);
    --paper: var(--dk-paper);
    --line: var(--dk-line);
    --line-soft: var(--dk-line-soft);
    --indigo: var(--dk-indigo);
    --terracotta: var(--dk-terracotta);
    --text: var(--dk-text);
    --muted: var(--dk-muted);
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--dk-bg);
    background-image:
        repeating-linear-gradient(45deg, rgba(38, 78, 112, 0.02) 0px, rgba(38, 78, 112, 0.02) 2px, transparent 2px, transparent 8px),
        radial-gradient(circle at 20% 40%, rgba(200, 120, 80, 0.05) 0%, transparent 30%);
    color: var(--dk-text);
    font-family: 'Inter', sans-serif;
}

.dk-surface {
    background: var(--dk-paper);
    border: 1px solid var(--dk-line);
    box-shadow: var(--dk-shadow);
    border-radius: var(--dk-radius-lg);
}

.dk-card {
    background: var(--dk-paper);
    border: 1px solid var(--dk-line);
    box-shadow: var(--dk-shadow);
    border-radius: var(--dk-radius-md);
}

.dk-btn,
.btn {
    border-radius: var(--dk-radius-pill);
    border: 2px solid transparent;
    background: var(--dk-terracotta);
    color: #fff;
    padding: 10px 20px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.dk-btn:hover,
.btn:hover {
    transform: translateY(-2px);
    background: #a53c22;
    box-shadow: 0 8px 18px rgba(198, 73, 44, 0.2);
}

.dk-btn-outline {
    background: transparent;
    color: var(--dk-indigo);
    border-color: var(--dk-indigo);
    box-shadow: none;
}

.dk-btn-outline:hover {
    background: var(--dk-indigo);
    color: #fff;
}

.dk-input,
.dk-select,
.dk-textarea,
input,
select,
textarea {
    width: 100%;
    background: #fffdf9;
    border: 1px solid var(--dk-line);
    border-radius: 10px;
    padding: 10px 12px;
    color: var(--dk-text);
}

.dk-input:focus,
.dk-select:focus,
.dk-textarea:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--dk-terracotta);
    box-shadow: 0 0 0 2px rgba(198, 73, 44, 0.12);
}

.dk-table {
    width: 100%;
    border-collapse: collapse;
}

.dk-table th {
    background: var(--dk-indigo);
    color: #fff;
    font-size: 13px;
    letter-spacing: 0.2px;
}

.dk-table td,
.dk-table th {
    padding: 9px 8px;
    border-bottom: 1px solid var(--dk-line-soft);
}

/* Admin page shared styles */
.admin-page .header,
.admin-page .stat-card,
.admin-page .chart-card,
.admin-page .table-container,
.admin-page .users-section,
.admin-page .modal-content,
.admin-page .login-form {
    background: var(--dk-paper);
    border: 1px solid var(--dk-line);
    box-shadow: var(--dk-shadow);
}

.admin-page h1,
.admin-page .users-header h2,
.admin-page .chart-card h3 {
    color: var(--dk-indigo);
}

.admin-page h1 {
    font-family: 'Noto Serif JP', serif;
    font-weight: 500;
    letter-spacing: 0.4px;
}

.admin-page .stat-card h3,
.admin-page .timestamp,
.admin-page #userRole,
.admin-page .modal-content label {
    color: var(--dk-muted) !important;
}

.admin-page .stat-card .number {
    color: var(--dk-indigo);
}

.admin-page .btn.logout,
.admin-page .btn.delete,
.admin-page .bulk-delete-btn {
    background: #9e3f2b !important;
    color: #fff !important;
}

.admin-page .btn.logout:hover,
.admin-page .btn.delete:hover,
.admin-page .bulk-delete-btn:hover {
    background: #813321 !important;
}

.admin-page th {
    background: var(--dk-indigo);
    color: #fff;
}

.admin-page th:hover {
    background: #1f425f;
}

.admin-page td {
    border-bottom: 1px solid var(--dk-line-soft);
    color: #2c241b;
}

.admin-page tr:hover {
    background: #f7f1e8;
}

.admin-page .editable-input,
.admin-page .level-select,
.admin-page .belts-select,
.admin-page .modal-content input,
.admin-page .modal-content select,
.admin-page .modal-content textarea,
.admin-page .form-group input {
    background: #fffdf9;
    border: 1px solid var(--dk-line);
}

.admin-page .editable-input:focus,
.admin-page .level-select:focus,
.admin-page .belts-select:focus,
.admin-page .modal-content input:focus,
.admin-page .modal-content select:focus,
.admin-page .modal-content textarea:focus,
.admin-page .form-group input:focus {
    border-color: var(--dk-terracotta);
    box-shadow: 0 0 0 2px rgba(198, 73, 44, 0.12);
}

.admin-page .club-tag {
    background: #efe4d5;
    color: #5a4a38;
}

.admin-page .user-row {
    border-bottom: 1px solid var(--dk-line-soft);
}

.admin-page .user-row:hover {
    background: #f7f1e8;
}

.admin-page .save-indicator {
    background: var(--dk-indigo);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.35);
}

.admin-page .modal-overlay {
    background: rgba(29, 26, 21, 0.35);
}

.admin-page .remember-me label {
    color: #5a4a38;
}

.admin-page .login-form h2 {
    color: var(--dk-indigo);
    font-family: 'Noto Serif JP', serif;
    font-weight: 500;
}

.admin-page #addApplicationModal .form-group small,
.admin-page #clubsLoading,
.admin-page #noClubsMessage {
    color: #7d6e5a !important;
}