/* Mobile-first styling. Base styles target small screens (Safari/Chrome on phones);
   the single breakpoint at 700px widens things out for tablets/desktop. */

:root {
    --color-bg: #f5f6f8;
    --color-surface: #ffffff;
    --color-border: #d9dce1;
    --color-text: #1f2328;
    --color-muted: #5b6270;
    --color-primary: #2f6feb;
    --color-primary-text: #ffffff;
    --color-error: #c0392b;
    --radius: 10px;
    --spacing: 16px;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 16px; /* prevents iOS Safari auto-zoom on input focus */
}

.app-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.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: 10;
}

.app-title {
    font-weight: 700;
    font-size: 1.1rem;
}

.app-main {
    flex: 1;
    padding: var(--spacing);
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
}

h1 {
    font-size: 1.4rem;
    margin: 0 0 8px 0;
}

.subtitle {
    color: var(--color-muted);
    margin-top: 0;
}

.back-link {
    display: inline-block;
    margin-bottom: var(--spacing);
    color: var(--color-primary);
    text-decoration: none;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing);
}

.login-card {
    max-width: 360px;
    margin: 10vh auto 0 auto;
}

.mode-select {
    text-align: center;
    padding-top: 8vh;
}

.mode-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.mode-button {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--color-text);
}

.mode-button-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.mode-button-subtitle {
    color: var(--color-muted);
    font-size: 0.9rem;
}

.form-page label,
.login-card label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: var(--spacing);
    font-weight: 600;
}

input[type="text"],
input[type="password"],
select,
textarea {
    font-size: 1rem;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface);
    color: var(--color-text);
    width: 100%;
    font-weight: 400;
}

textarea {
    resize: vertical;
}

fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing);
    margin: 0 0 var(--spacing) 0;
}

legend {
    font-weight: 700;
    padding: 0 6px;
}

.checkbox-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    font-weight: 400;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-bg);
}

.checkbox-row input[type="checkbox"] {
    width: 22px;
    height: 22px;
}

.photos-section .photo-slot {
    margin-bottom: var(--spacing);
    padding-bottom: var(--spacing);
    border-bottom: 1px solid var(--color-bg);
}

.photo-slot:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.photo-slot-label {
    font-weight: 700;
    margin-bottom: 8px;
}

.photo-slot-preview img {
    max-width: 100%;
    max-height: 260px;
    display: block;
    border-radius: 8px;
    margin-bottom: 8px;
    object-fit: contain;
    background: var(--color-bg);
}

.photo-slot-empty {
    color: var(--color-muted);
    font-style: italic;
    padding: 12px;
    text-align: center;
    background: var(--color-bg);
    border-radius: 8px;
    margin-bottom: 8px;
}

.photo-slot-caption {
    display: block;
    color: var(--color-muted);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.pending-text {
    color: var(--color-muted);
    font-style: italic;
    margin: 0;
}

.primary-button {
    width: 100%;
    padding: 14px;
    background: var(--color-primary);
    color: var(--color-primary-text);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}

.primary-button:disabled {
    opacity: 0.6;
}

.link-button {
    background: none;
    border: none;
    color: var(--color-primary);
    font-size: 1rem;
    cursor: pointer;
    padding: 0;
}

.error-text {
    color: var(--color-error);
    font-weight: 600;
}

.hint-text {
    color: var(--color-muted);
}

.tab-bar {
    display: flex;
    gap: 8px;
    margin-bottom: var(--spacing);
}

.tab-button {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}

.tab-button.active {
    background: var(--color-primary);
    color: var(--color-primary-text);
    border-color: var(--color-primary);
}

.history-entry {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing);
    margin-bottom: var(--spacing);
}

.history-entry-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    color: var(--color-muted);
}

.history-photos {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 12px;
}

.history-photo {
    flex: 1 1 45%;
    min-width: 130px;
}

.history-photo span {
    display: block;
    font-size: 0.8rem;
    color: var(--color-muted);
    margin-bottom: 4px;
}

.history-photo img {
    width: 100%;
    border-radius: 8px;
    display: block;
}

@media (min-width: 700px) {
    .app-main {
        padding: 32px;
    }

    .mode-buttons {
        flex-direction: row;
    }

    .mode-button {
        flex: 1;
    }
}