:root {
    --primary: #1e66ff;
    --navy: #0f172a;
    --muted: #64748b;
    --soft: #f6f8fc;
    --line: #e2e8f0;
    --white: #ffffff;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #dc2626;
    --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, Arial, sans-serif;
    background: radial-gradient(circle at top left, rgba(30,102,255,0.12), transparent 34%), var(--soft);
    color: var(--navy);
}

a {
    color: inherit;
}

.customer-shell {
    width: min(1080px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0 48px;
}

.topbar,
.auth-card,
.booking-card,
.summary-card,
.empty-card {
    background: rgba(255,255,255,0.94);
    border: 1px solid rgba(226,232,240,0.92);
    box-shadow: var(--shadow);
}

.topbar {
    border-radius: 28px;
    padding: 22px;
    margin-bottom: 22px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #eff6ff;
    color: var(--primary);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}

h1,
h2,
h3 {
    margin: 0;
    letter-spacing: -0.04em;
}

h1 {
    font-size: clamp(32px, 5vw, 48px);
    line-height: 1;
}

.topbar p,
.auth-card p,
.booking-meta,
.empty-card p {
    color: var(--muted);
    line-height: 1.6;
}

.topbar p {
    margin: 10px 0 0;
    font-weight: 650;
}

.top-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.btn,
button {
    border: 0;
    border-radius: 999px;
    min-height: 45px;
    padding: 12px 17px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 900;
    text-decoration: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: 0.2s ease;
}

.btn:hover,
button:hover {
    transform: translateY(-1px);
}

.btn-primary,
button {
    background: linear-gradient(135deg, var(--navy), var(--primary));
    color: #fff;
    box-shadow: 0 12px 26px rgba(30,102,255,0.2);
}

.btn-light {
    background: #f1f5f9;
    color: var(--navy);
}

.auth-wrap {
    max-width: 680px;
    margin: 0 auto;
}

.auth-card {
    border-radius: 28px;
    padding: 28px;
}

.auth-card p {
    margin: 10px 0 24px;
}

.form-grid {
    display: grid;
    gap: 16px;
}

label {
    display: block;
    margin-bottom: 7px;
    font-size: 13px;
    font-weight: 900;
}

input {
    width: 100%;
    padding: 14px;
    border-radius: 15px;
    border: 1px solid var(--line);
    background: #f8fafc;
    color: var(--navy);
    font: inherit;
    outline: none;
}

input:focus {
    background: #fff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(30,102,255,0.10);
}

.alert {
    padding: 14px 16px;
    border-radius: 18px;
    margin-bottom: 18px;
    font-weight: 800;
}

.alert.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert.success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.auth-footer {
    margin-top: 18px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 14px;
    font-weight: 800;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 22px;
}

.summary-card {
    border-radius: 22px;
    padding: 18px;
}

.summary-card span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 7px;
}

.summary-card strong {
    display: block;
    color: var(--primary);
    font-size: 30px;
    letter-spacing: -0.04em;
}

.section-heading {
    margin: 28px 0 14px;
}

.section-heading h2 {
    font-size: 26px;
}

.booking-list {
    display: grid;
    gap: 14px;
}

.booking-card {
    border-radius: 22px;
    padding: 18px;
}

.booking-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 14px;
}

.booking-top h3 {
    font-size: 21px;
}

.booking-meta {
    margin-top: 6px;
    font-weight: 700;
}

.badge-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 11px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 950;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge.pending,
.badge.unpaid,
.badge.pay_on_day {
    background: #fef3c7;
    color: #92400e;
}

.badge.confirmed,
.badge.deposit_paid {
    background: #dbeafe;
    color: #1d4ed8;
}

.badge.completed,
.badge.paid,
.badge.not_required {
    background: #dcfce7;
    color: #166534;
}

.badge.cancelled,
.badge.no_show,
.badge.refunded {
    background: #fee2e2;
    color: #991b1b;
}

.booking-detail-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.detail-box {
    background: #f8fafc;
    border: 1px solid var(--line);
    border-radius: 15px;
    padding: 12px;
    min-width: 0;
}

.detail-box span {
    display: block;
    color: var(--muted);
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.detail-box strong {
    display: block;
    overflow-wrap: anywhere;
}

.empty-card {
    border-radius: 22px;
    padding: 28px;
    text-align: center;
    border-style: dashed;
}

@media (max-width: 860px) {
    .topbar,
    .booking-top {
        flex-direction: column;
    }

    .top-actions,
    .btn,
    button {
        width: 100%;
    }

    .summary-grid,
    .booking-detail-grid {
        grid-template-columns: 1fr;
    }
}