:root {
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-text: #1f2430;
    --color-muted: #6b7280;
    --color-primary: #3457d5;
    --color-primary-dark: #2740a8;
    --color-error: #c0392b;
    --color-border: #e5e7eb;
    --radius: 10px;
    --spacing: 16px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
}

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

button {
    font: inherit;
}

/* Login */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing);
}

.login-card {
    width: 100%;
    max-width: 360px;
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 32px 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.login-card h1 {
    margin-top: 0;
    font-size: 1.5rem;
    text-align: center;
}

.login-card form {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.login-card label {
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-top: 12px;
}

.login-card input {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: var(--radius);
    font-size: 1rem;
}

.login-card button {
    margin-top: 20px;
    padding: 12px;
    border: none;
    border-radius: var(--radius);
    background: var(--color-primary);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
}

.login-card button:active {
    background: var(--color-primary-dark);
}

.error {
    color: var(--color-error);
    font-size: 0.9rem;
}

.login-card .error {
    text-align: center;
}

/* App shell */

.offline-banner {
    background: #f4a261;
    color: #3a2a12;
    text-align: center;
    font-size: 0.8rem;
    padding: 6px;
    position: sticky;
    top: 0;
    z-index: 6;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px var(--spacing);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 5;
}

.app-header h1 {
    font-size: 1.15rem;
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.logout-link {
    text-decoration: none;
    font-size: 0.85rem;
    margin-left: 8px;
}

.icon-btn {
    border: none;
    background: transparent;
    font-size: 1.2rem;
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
    line-height: 1;
}

.icon-btn:active,
.icon-btn.active {
    background: var(--color-bg);
}

.text-btn {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
}

.icon-text-btn {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
}

.link-btn {
    border: none;
    background: transparent;
    color: var(--color-error);
    text-decoration: underline;
    cursor: pointer;
    padding: 4px 0;
    font-size: 0.85rem;
}

.calendar-app {
    max-width: 640px;
    margin: 0 auto;
    padding: var(--spacing);
    padding-bottom: 96px;
}

.calendar-toolbar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 12px;
}

.calendar-toolbar h2 {
    margin: 0;
    min-width: 160px;
    text-align: center;
    font-size: 1.1rem;
}

.calendar-toolbar #btn-today {
    margin-left: auto;
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 999px;
    border: 1.5px solid var(--chip-color, var(--color-border));
    background: var(--color-surface);
    font-size: 0.8rem;
    cursor: pointer;
    opacity: 0.45;
}

.chip.active {
    opacity: 1;
    background: color-mix(in srgb, var(--chip-color, var(--color-primary)) 15%, white);
}

.chip .dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--chip-color, var(--color-primary));
    display: inline-block;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-top: 12px;
}

.weekday-label {
    text-align: center;
    font-size: 0.7rem;
    color: var(--color-muted);
    padding-bottom: 4px;
}

.day-cell {
    aspect-ratio: 1 / 1;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 4px 2px;
    cursor: pointer;
    position: relative;
}

.day-cell.outside-month {
    opacity: 0.35;
}

.day-cell.is-today {
    border-color: var(--color-primary);
    border-width: 2px;
}

.day-cell.is-selected {
    background: color-mix(in srgb, var(--color-primary) 12%, white);
}

.day-number {
    font-size: 0.8rem;
}

.day-dots {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    justify-content: center;
    margin-top: 3px;
}

.day-dots .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.day-detail {
    margin-top: 16px;
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 12px;
    border: 1px solid var(--color-border);
}

.day-detail h3 {
    margin: 0 0 8px;
    font-size: 0.95rem;
}

.appointment-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 4px;
    border-radius: 8px;
    cursor: pointer;
    border-bottom: 1px solid var(--color-border);
}

.appointment-row:last-child {
    border-bottom: none;
}

.appointment-row .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.appointment-row .appt-time {
    font-size: 0.75rem;
    color: var(--color-muted);
    min-width: 42px;
}

.appointment-row .appt-title {
    flex: 1;
    font-size: 0.9rem;
}

.appointment-row .appt-icons {
    font-size: 0.75rem;
    color: var(--color-muted);
}

.empty-hint {
    color: var(--color-muted);
    font-size: 0.85rem;
    padding: 8px 4px;
}

.fab {
    position: fixed;
    right: 20px;
    bottom: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    border: none;
    font-size: 1.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    cursor: pointer;
    z-index: 10;
}

/* Modal */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 20;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--color-surface);
    width: 100%;
    max-width: 480px;
    max-height: 92vh;
    overflow-y: auto;
    border-radius: 16px 16px 0 0;
    padding: 20px;
    position: relative;
}

@media (min-width: 540px) {
    .modal {
        align-items: center;
    }
    .modal-content {
        border-radius: 16px;
    }
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    border: none;
    background: transparent;
    font-size: 1.4rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px 8px;
}

.modal h2 {
    margin-top: 0;
    font-size: 1.2rem;
}

.modal h3 {
    font-size: 0.95rem;
    margin-bottom: 6px;
}

#appointment-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#appointment-form label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.85rem;
    color: var(--color-muted);
}

#appointment-form input[type="text"],
#appointment-form input[type="datetime-local"],
#appointment-form select,
#appointment-form textarea {
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--color-text);
    font-family: inherit;
}

.checkbox-label {
    flex-direction: row !important;
    align-items: center;
    gap: 8px !important;
}

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

.datetime-row label {
    flex: 1;
}

.reminders-fieldset,
#appointment-form fieldset {
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 10px;
}

.reminders-fieldset legend,
#appointment-form fieldset legend {
    font-size: 0.8rem;
    color: var(--color-muted);
    padding: 0 4px;
}

.reminder-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.reminder-options label {
    flex-direction: row;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    border: 1px solid var(--color-border);
    padding: 4px 10px;
    border-radius: 999px;
}

.voice-recorder {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.voice-recorder audio {
    max-width: 100%;
    height: 32px;
}

.record-status {
    font-size: 0.8rem;
    color: var(--color-error);
}

.photo-upload {
    margin-top: 10px;
}

.upload-btn {
    display: inline-block;
    border: 1px dashed var(--color-border);
    border-radius: 8px;
    padding: 8px 14px;
    cursor: pointer;
    font-size: 0.85rem;
}

.photo-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.photo-thumb {
    position: relative;
    width: 72px;
    height: 72px;
}

.photo-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.photo-thumb .photo-delete {
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--color-error);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    cursor: pointer;
    line-height: 1;
}

.attachments-hint {
    font-size: 0.8rem;
    color: var(--color-muted);
}

.modal-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.primary-btn {
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    margin-left: auto;
}

.danger-btn {
    background: transparent;
    color: var(--color-error);
    border: 1px solid var(--color-error);
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
}

.hidden {
    display: none !important;
}

/* Settings */

.settings-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.settings-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-row input[type="text"] {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.settings-row input[type="color"] {
    width: 36px;
    height: 32px;
    padding: 0;
    border: none;
    background: none;
}

.inline-form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.inline-form input[type="text"] {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}

.inline-form input[type="color"] {
    width: 36px;
    height: 32px;
    padding: 0;
    border: none;
}