:root {
    --bg: #f4f7fa;
    --surface: #ffffff;
    --surface-soft: #f8fbfd;
    --border: #d7e0e6;
    --text: #21343d;
    --muted: #5b7079;
    --heading: #132a33;
    --brand: #1f5e74;
    --brand-dark: #174a5b;
    --brand-soft: #e7f0f5;
    --danger: #b44a47;
    --danger-dark: #913835;
    --danger-soft: #fcebea;
    --shadow: 0 8px 24px rgba(19, 42, 51, 0.08);
    --radius-lg: 18px;
    --radius-md: 14px;
    --radius-sm: 10px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

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

a:hover {
    color: var(--brand-dark);
}

p {
    margin: 0 0 1rem;
    color: var(--muted);
}

strong {
    color: var(--heading);
}

button,
input,
select,
textarea {
    font: inherit;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px 24px;
    padding: 20px 24px;
    color: #ffffff;
    background: var(--brand-dark);
    box-shadow: 0 2px 10px rgba(19, 42, 51, 0.12);
}

.site-header h1 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(1.35rem, 1.1rem + 0.9vw, 1.9rem);
    line-height: 1.15;
    color: inherit;
}

.site-header p {
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
}

.site-header strong {
    color: #ffffff;
}

.site-header a {
    color: #d9edf7;
}

.page {
    width: min(1500px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 56px;
}

.page > * + * {
    margin-top: 1rem;
}

h2,
h3 {
    margin: 0;
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1.15;
    color: var(--heading);
}

h2 {
    font-size: clamp(1.9rem, 1.55rem + 1vw, 2.5rem);
}

h3 {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    font-size: 1.4rem;
}

h3 span {
    font-size: 0.86rem !important;
    font-weight: 700 !important;
    color: var(--muted) !important;
}

.page-intro {
    max-width: 80ch;
    font-size: 1rem;
}

.page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.msg,
.form-block,
.confirm-box,
.login-card,
.summary-card,
.empty-state {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.msg {
    padding: 1rem 1.15rem;
    border-left: 5px solid var(--brand);
    color: var(--text);
}

.msg-error {
    border-left-color: var(--danger);
    background: var(--danger-soft);
    color: #7d312d;
}

.summary-strip {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 240px));
    gap: 1rem;
}

.summary-card {
    padding: 1rem 1.15rem;
}

.summary-card strong {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 1.9rem;
    line-height: 1;
}

.summary-card span {
    display: block;
    font-size: 0.92rem;
    color: var(--muted);
}

.empty-state {
    max-width: 760px;
    padding: 1.25rem 1.4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.7rem 1.15rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.btn-primary {
    color: #ffffff;
    background: var(--brand);
}

.btn-primary:hover {
    color: #ffffff;
    background: var(--brand-dark);
}

.btn-secondary {
    color: var(--heading);
    border-color: var(--border);
    background: var(--surface);
}

.btn-secondary:hover {
    background: var(--surface-soft);
}

.btn-danger {
    color: #ffffff;
    background: var(--danger);
}

.btn-danger:hover {
    color: #ffffff;
    background: var(--danger-dark);
}

.form-block,
.confirm-box {
    max-width: 820px;
    margin-inline: auto;
    padding: 1.7rem;
}

.confirm-box {
    max-width: 680px;
}

.form-row {
    margin-bottom: 1.1rem;
}

.form-row label {
    display: block;
    margin-bottom: 0.45rem;
    font-size: 0.94rem;
    font-weight: 700;
    color: var(--heading);
}

.form-row input[type="text"],
.form-row input[type="password"],
.form-row input[type="date"],
.form-row input[type="time"],
.form-row select,
.form-row textarea {
    width: 100%;
    padding: 0.82rem 0.95rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    background: var(--surface);
}

.form-row textarea {
    min-height: 140px;
    resize: vertical;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
    outline: 3px solid rgba(31, 94, 116, 0.14);
    border-color: var(--brand);
}

.form-hint {
    display: block;
    margin-top: 0.45rem;
    font-size: 0.85rem;
    color: var(--muted);
}

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

.confirm-note {
    padding: 0.9rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    border: 1px solid var(--border);
}

.login-page {
    min-height: 100vh;
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: var(--bg);
}

.login-card {
    width: min(440px, 100%);
    padding: 2rem;
}

.login-card h1 {
    margin: 0 0 0.5rem;
    font-family: Georgia, "Times New Roman", serif;
    font-size: clamp(2rem, 1.7rem + 1vw, 2.5rem);
    line-height: 1.08;
    text-align: center;
    color: var(--heading);
}

.subtitle {
    margin-bottom: 1.5rem;
    text-align: center;
}

.demo-note {
    margin-top: 1.4rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    text-align: center;
}

.login-card .btn {
    width: 100%;
}

.login-card .form-actions {
    margin-top: 1.2rem;
}

.schedule-section + .schedule-section {
    margin-top: 1.5rem;
}

.timetable-scroll {
    overflow-x: auto;
    padding-bottom: 0.35rem;
}

.timetable {
    display: grid;
    grid-template-columns: repeat(7, minmax(220px, 1fr));
    gap: 1rem;
    min-width: max-content;
}

.day-col {
    overflow: hidden;
    min-height: 360px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}

.day-col.today {
    border-color: var(--brand);
}

.day-header {
    padding: 1rem 1rem 0.95rem;
    background: var(--surface-soft);
    border-bottom: 1px solid var(--border);
}

.day-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--heading);
}

.day-date {
    margin-top: 0.2rem;
    font-size: 0.94rem;
    color: var(--muted);
}

.day-total {
    margin-top: 0.6rem;
    font-size: 0.84rem;
    font-weight: 700;
    color: var(--brand);
}

.today-label {
    display: inline-block;
    margin-top: 0.65rem;
    padding: 0.22rem 0.55rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    color: #ffffff;
    background: var(--brand);
}

.day-body {
    display: grid;
    align-content: start;
    gap: 0.9rem;
    min-height: 250px;
    padding: 1rem;
}

.service-entry {
    padding: 1rem;
    border: 1px solid var(--border);
    border-left: 4px solid var(--brand);
    border-radius: var(--radius-md);
    background: var(--surface);
}

.service-title {
    display: block;
    font-size: 1rem;
    line-height: 1.35;
}

.time {
    margin-top: 0.4rem;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--heading);
}

.service-meta {
    margin-top: 0.35rem;
    font-size: 0.9rem;
    color: var(--text);
}

.service-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-top: 0.9rem;
}

.no-service {
    margin: 0;
    padding: 1rem;
    font-size: 0.92rem;
    text-align: center;
    color: var(--muted);
    background: var(--surface-soft);
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
}

:focus-visible {
    outline: 3px solid rgba(31, 94, 116, 0.2);
    outline-offset: 2px;
}

@media (max-width: 900px) {
    .site-header {
        align-items: flex-start;
        padding: 18px 16px;
    }

    .page {
        width: min(100% - 24px, 1500px);
        padding-top: 22px;
    }

    .summary-strip {
        grid-template-columns: 1fr 1fr;
    }

    .timetable {
        grid-template-columns: repeat(7, minmax(205px, 1fr));
    }
}

@media (max-width: 640px) {
    body {
        font-size: 15px;
    }

    .page {
        width: min(100% - 18px, 1500px);
    }

    .summary-strip {
        grid-template-columns: 1fr;
    }

    .form-actions,
    .service-actions,
    .page-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    .form-block,
    .confirm-box,
    .login-card {
        padding: 1.2rem;
    }

    .timetable {
        grid-template-columns: repeat(7, minmax(185px, 1fr));
    }

    .day-col {
        min-height: 320px;
    }
}