/* ─── Client Management System — Helen Millar Coaching ─────────────────── */

:root {
    --color-primary: #2c6e6a;
    --color-primary-dark: #1e4d4a;
    --color-primary-light: #e8f4f3;
    --color-bg: #f7f8fa;
    --color-white: #ffffff;
    --color-text: #2d3748;
    --color-text-muted: #718096;
    --color-border: #e2e8f0;
    --color-border-light: #edf2f7;
    --color-success: #38a169;
    --color-success-bg: #f0fff4;
    --color-warning: #d69e2e;
    --color-warning-bg: #fffff0;
    --color-danger: #e53e3e;
    --color-danger-bg: #fff5f5;
    --color-info: #3182ce;
    --color-info-bg: #ebf8ff;
    --color-neutral: #a0aec0;
    --color-neutral-bg: #f7fafc;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* ─── Reset & Base ──────────────────────────────────────────────────────── */

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

body {
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

h1 { font-size: 1.75rem; font-weight: 700; line-height: 1.3; }
h2 { font-size: 1.25rem; font-weight: 600; line-height: 1.4; margin-bottom: 0.75rem; }
h3 { font-size: 1.05rem; font-weight: 600; line-height: 1.4; margin-bottom: 0.5rem; }

/* ─── Layout ────────────────────────────────────────────────────────────── */

.app-header {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 2rem;
}

.logo {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-primary) !important;
    white-space: nowrap;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.header-nav a {
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: background 0.15s, color 0.15s;
}

.header-nav a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.header-nav a.active { background: var(--color-primary-light); color: var(--color-primary); font-weight: 500; }

.nav-spacer { flex: 1; }
.nav-secondary { font-size: 0.85rem !important; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 0.3rem 0.6rem;
    font-size: 1.2rem;
    cursor: pointer;
}

.app-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

.app-footer {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding: 1.5rem;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--color-border-light);
}

/* ─── Page Header ───────────────────────────────────────────────────────── */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-header h1 { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }

.back-link {
    font-size: 0.85rem;
    color: var(--color-text-muted) !important;
    display: inline-block;
    margin-bottom: 0.25rem;
}

.back-link:hover { color: var(--color-primary) !important; }

.subtitle { color: var(--color-text-muted); font-size: 0.95rem; margin-top: 0.25rem; }

/* ─── Stats Grid ────────────────────────────────────────────────────────── */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stats-grid-5 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }

.stat-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
}

.stat-card-small { padding: 1rem; }

.stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

.stat-card-small .stat-number { font-size: 1.25rem; }

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ─── Section Card ──────────────────────────────────────────────────────── */

.section-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.section-card-warning { border-color: var(--color-warning); }

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.section-header h2 { margin-bottom: 0; }

/* ─── Tabs ──────────────────────────────────────────────────────────────── */

.tabs {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s;
}

.tab:hover { color: var(--color-primary); }
.tab-active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 500; }

/* ─── Client List ───────────────────────────────────────────────────────── */

.client-list { display: flex; flex-direction: column; gap: 0.5rem; }

.client-card {
    display: block;
    padding: 1rem 1.25rem;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius);
    transition: border-color 0.15s, box-shadow 0.15s;
    color: inherit !important;
}

.client-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow); }

.client-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.25rem;
}

.client-name { font-weight: 600; font-size: 1.05rem; }

.client-card-meta {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.client-card-stats {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
    flex-wrap: wrap;
}

/* ─── Detail Grid ───────────────────────────────────────────────────────── */

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.detail-section {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.detail-list { display: grid; grid-template-columns: auto 1fr; gap: 0.4rem 1rem; font-size: 0.9rem; }
.detail-list dt { color: var(--color-text-muted); font-weight: 500; }
.detail-list dd { color: var(--color-text); }

/* ─── List Items ────────────────────────────────────────────────────────── */

.list-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border-light);
}

.list-item:last-child { border-bottom: none; }

.list-item-editing {
    background: var(--color-primary-light);
    padding: 1rem;
    border-radius: var(--radius);
    margin: 0.5rem 0;
}

.list-item-main {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.list-item-actions {
    margin-left: auto;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.list-item-notes { margin-top: 0.35rem; font-size: 0.9rem; }

.action-link {
    font-size: 0.8rem;
    color: var(--color-text-muted) !important;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.action-link:hover { background: var(--color-border-light); color: var(--color-primary) !important; }
.action-delete { color: var(--color-danger) !important; }
.action-delete:hover { background: var(--color-danger-bg) !important; }

.inline-delete { display: inline; }
.inline-delete button { background: none; border: none; cursor: pointer; font: inherit; }

.link-more { display: inline-block; margin-top: 0.75rem; font-size: 0.9rem; }

/* ─── Upcoming Sessions ─────────────────────────────────────────────────── */

.upcoming-list { display: flex; flex-direction: column; }

.upcoming-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border-light);
}

.upcoming-item:last-child { border-bottom: none; }
.upcoming-date { font-size: 0.85rem; color: var(--color-text-muted); min-width: 160px; }
.upcoming-client { display: flex; align-items: center; gap: 0.5rem; }

/* ─── Badges ────────────────────────────────────────────────────────────── */

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    line-height: 1.4;
}

.badge-small { font-size: 0.75rem; padding: 0.1rem 0.5rem; }

.status-success { background: var(--color-success-bg); color: var(--color-success); }
.status-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.status-danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.status-info    { background: var(--color-info-bg);    color: var(--color-info); }
.status-neutral { background: var(--color-neutral-bg); color: var(--color-neutral); }

/* ─── Search Bar ────────────────────────────────────────────────────────── */

.search-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.search-bar input[type="text"] { flex: 1; min-width: 200px; }
.search-bar select { min-width: 140px; }

/* ─── Forms ─────────────────────────────────────────────────────────────── */

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.3rem; color: var(--color-text); }

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-white);
    transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(44, 110, 106, 0.1);
}

textarea { resize: vertical; }

.form-help { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.25rem; }

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    align-items: center;
}

.inline-form {
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
}

.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 0.5rem;
    font-weight: 400 !important;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] { width: auto; }

/* ─── Buttons ───────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.25rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    text-decoration: none !important;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white) !important;
    border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary) !important;
    border-color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary-light); }

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted) !important;
    border-color: var(--color-border);
}
.btn-ghost:hover { background: var(--color-bg); border-color: var(--color-text-muted); }

.btn-danger {
    background: var(--color-danger);
    color: var(--color-white) !important;
    border-color: var(--color-danger);
}
.btn-danger:hover { background: #c53030; }

.btn-small { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-full { width: 100%; }

/* ─── Data Table ────────────────────────────────────────────────────────── */

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th {
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid var(--color-border);
}

.data-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--color-border-light);
    vertical-align: middle;
}

.data-table tbody tr:hover { background: var(--color-bg); }

.actions-cell {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: flex-end;
}

/* ─── Payment Summary ───────────────────────────────────────────────────── */

.payment-summary {
    display: flex;
    gap: 1.5rem;
    padding: 0.75rem 0;
    margin-bottom: 1rem;
    font-weight: 500;
    flex-wrap: wrap;
}

/* ─── Notes ──────────────────────────────────────────────────────────────── */

.notes-content { font-size: 0.95rem; line-height: 1.7; color: var(--color-text); }

/* ─── Compliance ────────────────────────────────────────────────────────── */

.compliance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }

.compliance-item {
    background: var(--color-bg);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.data-rights-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }

.data-right { padding: 1rem; background: var(--color-bg); border-radius: var(--radius); }
.data-right h3 { margin-bottom: 0.5rem; }
.data-right p { font-size: 0.9rem; color: var(--color-text-muted); margin-bottom: 1rem; }
.data-right-danger { background: var(--color-danger-bg); }

/* ─── Flash Messages ────────────────────────────────────────────────────── */

.flash {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.flash-success { background: var(--color-success-bg); color: #276749; border: 1px solid #c6f6d5; }
.flash-error   { background: var(--color-danger-bg);  color: #9b2c2c; border: 1px solid #fed7d7; }
.flash-info    { background: var(--color-info-bg);    color: #2b6cb0; border: 1px solid #bee3f8; }

/* ─── Login ─────────────────────────────────────────────────────────────── */

.page-login { background: linear-gradient(135deg, #f7f8fa 0%, #e8f4f3 100%); }

.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
}

.login-card h1 { text-align: center; color: var(--color-primary); margin-bottom: 0.25rem; }
.login-subtitle { text-align: center; color: var(--color-text-muted); margin-bottom: 1.5rem; font-size: 0.9rem; }

/* ─── Empty State ───────────────────────────────────────────────────────── */

.empty-state { text-align: center; padding: 2rem 1rem; color: var(--color-text-muted); }

/* ─── Text Utilities ────────────────────────────────────────────────────── */

.text-muted   { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-danger  { color: var(--color-danger); }
.text-small   { font-size: 0.8rem; }

/* ─── Responsive ────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .header-nav { display: none; position: absolute; top: 56px; left: 0; right: 0; background: var(--color-white); border-bottom: 1px solid var(--color-border); flex-direction: column; padding: 0.5rem; box-shadow: var(--shadow-md); }
    .header-nav.open { display: flex; }
    .header-nav a { padding: 0.6rem 1rem; }
    .nav-spacer { display: none; }
    .mobile-menu-btn { display: block; margin-left: auto; }

    .page-header { flex-direction: column; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid-5 { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .search-bar { flex-direction: column; }
    .search-bar input[type="text"] { min-width: auto; }

    .data-table { font-size: 0.8rem; }
    .data-table th, .data-table td { padding: 0.4rem; }

    .tabs { gap: 0; }
    .tab { padding: 0.5rem 0.65rem; font-size: 0.8rem; }

    .detail-grid { grid-template-columns: 1fr; }
    .compliance-grid { grid-template-columns: 1fr; }
    .data-rights-grid { grid-template-columns: 1fr; }

    h1 { font-size: 1.4rem; }
}

@media (max-width: 480px) {
    .app-main { padding: 1rem; }
    .section-card { padding: 1rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
    .stat-card { padding: 0.75rem; }
    .stat-number { font-size: 1.15rem; }
}

/* Login extras */
.login-divider { text-align:center; margin:16px 0; position:relative; }
.login-divider::before { content:''; position:absolute; top:50%; left:0; right:0; height:1px; background:#e2e8f0; }
.login-divider span { position:relative; background:#fff; padding:0 12px; font-size:13px; color:#a0aec0; }
.login-footer { text-align:center; margin-top:16px; font-size:13px; color:#a0aec0; }
.login-footer a { color:var(--color-primary); }