static/css/style.css

/* ═══════════════════════════════════════════════════════════════════════════
   One Step Greener — Design System
   Minimal, green-accent UI (Uniqlo-inspired). Waste management / sustainability.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Tokens ──────────────────────────────────────────────────────────────── */
:root {
    --color-bg: #f8f9f7;
    --color-surface: #ffffff;
    --color-surface-2: #f0f2ef;
    --color-border: #e8ebe6;
    --color-primary: #2d6a4f;
    --color-primary-light: #40916c;
    --color-primary-dim: rgba(45, 106, 79, 0.12);
    --color-danger: #c1121f;
    --color-warn: #b08968;
    --color-text: #1b1b1b;
    --color-text-muted: #5c5c5c;
    --color-text-subtle: #8d8d8d;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;

    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);

    --transition: 0.2s ease;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --max-w: 480px;
}

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

html {
    height: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100%;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ── Shell ───────────────────────────────────────────────────────────────── */
.app-shell {
    min-height: 100dvh;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 24px 20px 48px;
    display: flex;
    flex-direction: column;
}

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0 16px;
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 40px;
}

.top-bar a {
    line-height: 0;
    transition: opacity var(--transition);
}

.top-bar a:hover {
    opacity: 0.7;
}

.top-bar-logo-wrap {
    display: flex;
    align-items: center;
    text-decoration: none;
    background: transparent;
}

.top-bar-logo {
    height: 32px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
    display: block;
    background: transparent;
}

.top-bar-logo-sm {
    height: 26px;
    max-width: 120px;
    background: transparent;
}

.clock {
    font-variant-numeric: tabular-nums;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

/* ── Typography ──────────────────────────────────────────────────────────── */
h1 {
    font-size: clamp(26px, 6vw, 36px);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

h2 {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--color-text);
}

h3 {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 8px;
    color: var(--color-text);
}

p {
    color: var(--color-text-muted);
    font-size: 14px;
}

/* ── Grid menu (dashboard) ───────────────────────────────────────────────── */
.grid-menu {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 24px;
}

.card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 24px 18px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--color-text);
    cursor: pointer;
    transition: border-color var(--transition), box-shadow var(--transition);
    user-select: none;
    box-shadow: var(--shadow-subtle);
}

.card svg {
    color: var(--color-primary);
}

.card span {
    font-size: 12px;
    color: var(--color-text-muted);
}

.card:hover,
.card:focus-visible {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-card);
    outline: none;
}

.card:active {
    opacity: 0.98;
}

/* ── PIN gate (Register) ──────────────────────────────────────────────────── */
.pin-gate {
    margin-top: 24px;
    max-width: 280px;
    margin-left: auto;
    margin-right: auto;
}

.pin-prompt {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    text-align: center;
}

.pin-input {
    display: block;
    width: 100%;
    padding: 14px 18px;
    margin-bottom: 12px;
    font-size: 18px;
    letter-spacing: 0.2em;
    text-align: center;
}

.pin-submit {
    margin-top: 8px;
}

.pin-error {
    font-size: 13px;
    color: var(--color-danger);
    margin-top: 12px;
    text-align: center;
}

/* ── Manage / Delete users ────────────────────────────────────────────────── */
.manage-section {
    margin-top: 8px;
}

.manage-intro {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

.manage-list {
    min-height: 40px;
}

.manage-loading {
    font-size: 13px;
    color: var(--color-text-subtle);
}

.manage-ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.manage-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
}

.manage-item-name {
    font-size: 14px;
    color: var(--color-text);
}

.manage-item-id {
    font-size: 12px;
    color: var(--color-text-muted);
    margin-left: 4px;
}

.manage-delete-btn {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--color-danger);
    background: transparent;
    border: 1px solid var(--color-danger);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.manage-delete-btn:hover {
    background: rgba(193, 18, 31, 0.1);
}

.manage-empty {
    font-size: 13px;
    color: var(--color-text-muted);
    margin: 0;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn-primary,
.btn-outline {
    display: block;
    width: 100%;
    padding: 14px 20px;
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition),
        opacity var(--transition);
    border: none;
}

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

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-light);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    border-color: var(--color-text-subtle);
    background: var(--color-surface-2);
}

/* ── Form inputs ─────────────────────────────────────────────────────────── */
input[type="text"] {
    display: block;
    width: 100%;
    padding: 12px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 15px;
    margin-bottom: 10px;
    transition: border-color var(--transition);
    outline: none;
    -webkit-appearance: none;
}

input[type="text"]::placeholder {
    color: var(--color-text-subtle);
}

input[type="text"]:focus {
    border-color: var(--color-primary);
}

/* ── Camera: attendance page (circle view) ───────────────────────────────── */
.camera-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 320px;
    margin: 28px auto 0;
    border-radius: 50%;
    overflow: hidden;
    background: var(--color-surface-2);
    border: 2px solid var(--color-border);
}

.circle-feed {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    transform: scaleX(-1);
}

.overlay-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.overlay-svg path,
.overlay-svg circle {
    stroke: var(--color-primary) !important;
}

.spin-ring {
    transform-origin: 150px 150px;
    animation: spin 8s linear infinite;
}

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

/* ── Camera: register page (rect view) ──────────────────────────────────── */
.video-rect-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    margin-bottom: 12px;
}

.video-rect-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}

.rect-overlay {
    position: absolute;
    inset: 12%;
    border: 2px dashed var(--color-primary);
    border-radius: var(--radius-sm);
    pointer-events: none;
    opacity: 0.5;
}

.progress-ring {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    transition: stroke-dashoffset 0.4s ease;
}

.progress-ring circle[stroke="#00C853"] {
    stroke: var(--color-primary);
}

/* ── Status indicator ────────────────────────────────────────────────────── */
.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-text-subtle);
    margin: 18px auto 6px;
    transition: background var(--transition);
}

.status-indicator.active {
    background: var(--color-primary);
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.status-text {
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.02em;
    color: var(--color-text-muted);
    min-height: 20px;
    transition: color var(--transition);
}

/* ── Success modal ───────────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
    z-index: 100;
    backdrop-filter: blur(4px);
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    width: 100%;
    max-width: 320px;
    text-align: center;
    box-shadow: var(--shadow-card);
    transform: translateY(12px);
    transition: transform 0.25s ease;
}

.modal-overlay.show .modal-card {
    transform: translateY(0);
}

.checkmark-animated {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-primary-dim);
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--color-primary);
    margin: 0 auto 16px;
    animation: pop 0.4s ease forwards;
}

@keyframes pop {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-card h2 {
    font-size: 18px;
    margin-bottom: 6px;
}

.employee-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text);
    margin: 4px 0;
}

.timestamp {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 20px;
}

/* ── Register success state ──────────────────────────────────────────────── */
.success-state {
    text-align: center;
    padding: 32px 0;
    animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.checkmark-large {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--color-primary-dim);
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: var(--color-primary);
    margin: 0 auto 20px;
}

.success-state h2 {
    margin-bottom: 12px;
}

.chip {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

/* ── Register form layout ────────────────────────────────────────────────── */
#registerForm {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ── Utility ─────────────────────────────────────────────────────────────── */
a {
    color: var(--color-primary);
}

a:hover {
    text-decoration: underline;
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface-2);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (min-width: 640px) {
    .app-shell {
        padding-top: 32px;
    }
    .camera-container {
        max-width: 360px;
    }
}

/* ── Toast (spoof / warning) ────────────────────────────────────────────── */
.toast {
    position: fixed;
    left: 50%;
    transform: translateX(-50%) translateY(-120%);
    top: 20px;
    z-index: 200;
    max-width: calc(var(--max-w) - 40px);
    width: 100%;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.25s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.toast-icon {
    flex-shrink: 0;
    font-size: 18px;
    line-height: 1.2;
}

.toast-body {
    flex: 1;
    min-width: 0;
}

.toast-title {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 2px;
}

.toast-message {
    font-size: 13px;
    line-height: 1.35;
    margin: 0;
    opacity: 0.9;
}

.toast-danger {
    background: #fff5f5;
    border: 1px solid rgba(193, 18, 31, 0.3);
    color: #5c1010;
}

.toast-danger .toast-title {
    color: var(--color-danger);
}

.toast-danger .toast-icon {
    color: var(--color-danger);
}

/* ── Global snackbar (popup / snack bar) ──────────────────────────────────── */
.snackbar {
    position: fixed;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%) translateY(100px);
    z-index: 300;
    max-width: calc(var(--max-w) - 32px);
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.25s ease;
}

.snackbar.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.snackbar-icon {
    flex-shrink: 0;
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

.snackbar-message {
    font-size: 14px;
    line-height: 1.35;
}

.snackbar-success {
    background: var(--color-surface);
    border: 1px solid var(--color-primary);
    color: var(--color-text);
}

.snackbar-success .snackbar-icon {
    color: var(--color-primary);
}

.snackbar-error {
    background: #fff5f5;
    border: 1px solid rgba(193, 18, 31, 0.4);
    color: #5c1010;
}

.snackbar-error .snackbar-icon {
    color: var(--color-danger);
}

.snackbar-info {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.snackbar-info .snackbar-icon {
    color: var(--color-primary);
}