/* ============================================================
   Reception Kiosk — Main Stylesheet
   Touch-optimised, full-viewport, high-contrast dark theme
   ============================================================ */

/* ── CSS Custom Properties ────────────────────────────────── */
:root {
    /* Brand colours */
    --color-primary:        #0078d4;
    --color-primary-dark:   #005a9e;
    --color-primary-light:  #2899f5;
    --color-secondary:      #d17000;
    --color-secondary-dark: #b05a00;

    /* Semantic colours */
    --color-success:        #107c10;
    --color-warning:        #d17000;
    --color-error:          #d13438;

    /* Surface / background */
    --color-bg:             #0f1117;
    --color-surface:        #1a1d27;
    --color-surface-raised: #222533;
    --color-border:         #2e3145;

    /* Text */
    --color-text:           #f0f2f8;
    --color-text-muted:     #8b92b0;
    --color-text-inverse:   #ffffff;

    /* Typography */
    --font-base:    'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-size-base: 20px;
    --line-height:  1.5;

    /* Spacing */
    --space-xs:  0.5rem;
    --space-sm:  1rem;
    --space-md:  1.5rem;
    --space-lg:  2rem;
    --space-xl:  3rem;

    /* Border radius */
    --radius-sm:  6px;
    --radius-md:  12px;
    --radius-lg:  18px;
    --radius-xl:  28px;
    --radius-pill: 9999px;

    /* Touch target minimum */
    --touch-target: 60px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
}

/* ── Reset / Base ─────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    -webkit-text-size-adjust: 100%;
    height: 100%;
    overflow: hidden; /* Kiosk: no page scroll */
}

body.kiosk-body {
    font-family: var(--font-base);
    font-size: 1rem;
    line-height: var(--line-height);
    background-color: var(--color-bg);
    color: var(--color-text);
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
}

/* Allow text selection inside form inputs */
input, textarea {
    user-select: text;
    -webkit-user-select: text;
}

/* ── Layout Helpers ───────────────────────────────────────── */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
    width: 100%;
}

.page-container--narrow {
    max-width: 680px;
}

.page-header {
    margin-bottom: var(--space-lg);
}

.page-header h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 700;
    margin: 0.5rem 0 0.25rem;
    color: var(--color-text);
}

.page-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--color-text-muted);
    margin: 0;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: var(--touch-target);
    padding: 0.9rem 2rem;
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    box-shadow: 0 4px 16px rgba(0, 120, 212, 0.3);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: var(--color-primary-dark);
    box-shadow: 0 6px 24px rgba(0, 120, 212, 0.45);
}

.btn-primary:active {
    transform: scale(0.97);
}

.btn-secondary {
    background: var(--color-surface-raised);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background: var(--color-surface);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-secondary:active {
    transform: scale(0.97);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-height: var(--touch-target);
    padding: 0.5rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.btn-back:hover {
    color: var(--color-primary);
    background: rgba(0, 120, 212, 0.08);
}

.btn-home {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-height: var(--touch-target);
    padding: 0.6rem 1.4rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.btn-home:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

/* ── Colleague Grid ───────────────────────────────────────── */
.colleague-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    padding-bottom: 2rem;
}

.colleague-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    min-height: var(--touch-target);
    transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.colleague-card:hover,
.colleague-card:focus-visible {
    border-color: var(--color-primary);
    background: var(--color-surface-raised);
    box-shadow: 0 4px 20px rgba(0, 120, 212, 0.2);
    transform: translateY(-2px);
}

.colleague-card:active {
    transform: scale(0.97);
    box-shadow: none;
}

.colleague-card__avatar {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.colleague-card__info {
    min-width: 0;
    flex: 1;
}

.colleague-card__name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.colleague-card__title {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 0.1rem;
}

.colleague-card__dept {
    font-size: 0.8rem;
    color: var(--color-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 0.1rem;
    opacity: 0.85;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-muted);
}

.no-results-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

/* ── Forms ────────────────────────────────────────────────── */
.kiosk-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    min-height: var(--touch-target);
    padding: 0.85rem 1.2rem;
    font-family: inherit;
    font-size: 1.1rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
    -webkit-appearance: none;
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.2);
}

.form-input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.7;
}

/* ── Waiting screen (shared vars — detail in page) ────────── */
.waiting-screen {}

/* ── Scrollable areas (colleague list) ───────────────────── */
.kiosk-scroll {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    flex: 1;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* ── HTMX loading indicator ──────────────────────────────── */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms ease;
}

.htmx-request .htmx-indicator,
.htmx-indicator.htmx-request {
    opacity: 1;
}

/* ── Focus visible for accessibility ─────────────────────── */
:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* ── Full-page loading spinner ────────────────────────────── */
.page-spinner {
    position: fixed;
    inset: 0;
    background: rgba(15, 17, 23, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.page-spinner.active {
    opacity: 1;
    pointer-events: all;
}

.page-spinner__ring {
    width: 72px;
    height: 72px;
    border: 6px solid rgba(255, 255, 255, 0.12);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spinner-spin 0.75s linear infinite;
}

@keyframes spinner-spin {
    to { transform: rotate(360deg); }
}

/* ── Inline search spinner (HTMX) ─────────────────────────── */
.search-spinner {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 22px;
    height: 22px;
    border: 3px solid rgba(255, 255, 255, 0.12);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spinner-spin 0.75s linear infinite;
    display: none;
    pointer-events: none;
}

.htmx-indicator.htmx-request {
    display: block;
}

/* ── Split layout (content left + virtual keyboard right) ─── */
.kiosk-split {
    display: grid;
    grid-template-columns: 1fr 600px;
    height: 100%;
    overflow: hidden;
}

.kiosk-split__content {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 1.5rem 1.5rem 1.5rem 2rem;
    display: flex;
    flex-direction: column;
}

.kiosk-split__keyboard {
    border-left: 1px solid var(--color-border);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: var(--color-bg);
}

/* ── Virtual keyboard ─────────────────────────────────────── */
.vkb {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 1rem 0.85rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.vkb-row {
    display: flex;
    gap: 5px;
}

.vkb-key {
    flex: 1;
    height: clamp(44px, 6.2vh, 58px);
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: inherit;
    font-size: clamp(0.9rem, 1.6vw, 1.1rem);
    font-weight: 500;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-user-select: none;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    outline: none;
    transition: background 0.1s, color 0.1s, transform 0.08s;
    -webkit-tap-highlight-color: transparent;
}

.vkb-key.pressed,
.vkb-key:active {
    background: var(--color-primary) !important;
    border-color: var(--color-primary-dark) !important;
    color: #fff !important;
    transform: scale(0.91);
}

.vkb-key--action {
    flex: 1.6;
    background: var(--color-bg);
    font-size: 1.25rem;
}

.vkb-key--shift.shifted {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.vkb-key--space {
    flex: 5;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
}

.vkb-key--clear {
    flex: 2;
    background: var(--color-bg);
    color: var(--color-error);
    border-color: rgba(209, 52, 56, 0.35);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

/* Active input highlight */
.vkb-input:focus {
    border-color: var(--color-primary) !important;
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.25) !important;
}