/* ================================================================
 * 2fakit - Hand-drawn TOTP Authenticator
 * 手绘涂鸦风格 — ZCOOL KuaiLe 中文手写体
 * ================================================================ */

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

:root {
    --paper: #fdf6e3;
    --paper-dark: #f5ecd7;
    --ink: #2c2c2c;
    --ink-light: #5a5a5a;
    --ink-faint: #999;
    --pencil-red: #c75252;
    --pencil-blue: #4a6fa5;
    --pencil-green: #5a8f5a;
    --sketch-line: #3a3a3a;
    --font-hand: 'ZCOOL KuaiLe', 'Comic Sans MS', 'PingFang SC', cursive;
    --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Courier New', monospace;
    --font-body: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', -apple-system, sans-serif;
    --doodle-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
}

body {
    font-family: var(--font-body);
    background: var(--paper);
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(0,0,0,0.02) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0,0,0,0.03) 0%, transparent 50%),
        linear-gradient(90deg, rgba(0,0,0,0.01) 1px, transparent 1px),
        linear-gradient(rgba(0,0,0,0.01) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 20px 20px, 20px 20px;
    color: var(--ink);
    min-height: 100vh;
    line-height: 1.6;
}

/* ===== Sketchy Header ===== */
header {
    background: var(--paper);
    border-bottom: 1px solid var(--sketch-line);
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow:
        0 2px 0 0 var(--sketch-line),
        0 4px 0 0 color-mix(in srgb, var(--sketch-line) 30%, transparent);
}

header h1 {
    font-family: var(--font-hand);
    font-size: 2rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: 2px;
    transform: rotate(-1.5deg);
    text-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

.header-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

/* ===== SVG icon system ===== */
.icon {
    width: 1.15em;
    height: 1.15em;
    vertical-align: -0.2em;
    flex-shrink: 0;
}

h1 .icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    margin-right: 2px;
}

h3 .icon {
    vertical-align: -0.25em;
    margin-right: 4px;
}

button .icon {
    vertical-align: -0.2em;
    margin-right: 2px;
}

.btn-icon .icon {
    margin-right: 0;
}

.empty-icon .icon,
.empty-icon svg {
    width: 3rem;
    height: 3rem;
}

/* ===== Export Dialog ===== */
.dialog.dialog-export {
    max-width: 440px;
}

.dialog.dialog-export h3,
.dialog.dialog-export .export-account {
    text-align: center;
}

.dialog.dialog-export .export-label {
    text-align: left;
}

.export-account {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--ink-faint);
    margin: -8px 0 16px;
}

.export-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}

.export-qr {
    display: flex;
    justify-content: center;
}

.export-qr > * {
    border: 2.5px solid var(--sketch-line);
    border-radius: 12px;
    padding: 8px;
    background: #fff;
    line-height: 0;
}

.export-qr canvas,
.export-qr img {
    display: block;
    width: 160px;
    height: 160px;
}

.export-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.export-label {
    font-family: var(--font-hand);
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink-light);
}

.export-row {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.export-code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    background: var(--paper-dark);
    border: 2px dashed var(--ink-faint);
    border-radius: 6px;
    padding: 8px 10px;
    word-break: break-all;
    color: var(--ink-light);
    line-height: 1.4;
}

.btn-sm {
    font-size: 0.85rem;
    padding: 6px 12px;
    white-space: nowrap;
}

/* ===== Main Layout ===== */
main {
    padding: 28px 24px;
}

/* ===== Sketchy Buttons ===== */
button {
    cursor: pointer;
    border: 2.5px solid var(--sketch-line);
    border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 9px 18px;
    transition: all 0.15s ease;
    font-family: inherit;
    background: var(--paper);
    color: var(--ink);
    position: relative;
    box-shadow:
        2px 2px 0 0 var(--sketch-line),
        3px 3px 0 0 color-mix(in srgb, var(--sketch-line) 20%, transparent);
    transform: rotate(-0.3deg);
}

button:hover {
    transform: translate(1px, 1px) rotate(0deg);
    box-shadow:
        1px 1px 0 0 var(--sketch-line),
        2px 2px 0 0 color-mix(in srgb, var(--sketch-line) 20%, transparent);
}

button:active {
    transform: translate(2px, 2px) rotate(0.2deg);
    box-shadow: 1px 1px 0 0 var(--sketch-line);
}

.btn-primary {
    background: var(--pencil-blue);
    color: #fff;
    border-color: color-mix(in srgb, var(--pencil-blue) 80%, #000);
    box-shadow:
        2px 2px 0 0 color-mix(in srgb, var(--pencil-blue) 60%, #000),
        3px 3px 0 0 rgba(0,0,0,0.08);
}

.btn-primary:hover {
    background: color-mix(in srgb, var(--pencil-blue) 90%, #fff);
}

header .btn-primary {
    width: auto;
}

.btn-secondary {
    background: var(--paper);
}

.btn-danger {
    background: var(--pencil-red);
    color: #fff;
    border-color: color-mix(in srgb, var(--pencil-red) 80%, #000);
    box-shadow:
        2px 2px 0 0 color-mix(in srgb, var(--pencil-red) 60%, #000),
        3px 3px 0 0 rgba(0,0,0,0.08);
}

.btn-danger:hover {
    background: color-mix(in srgb, var(--pencil-red) 90%, #fff);
}

.btn-icon {
    background: transparent;
    border: 2px dashed var(--ink-faint);
    border-radius: 50%;
    padding: 5px 8px;
    font-size: 1rem;
    box-shadow: none;
    transform: none;
}

.btn-icon:hover {
    border-style: solid;
    border-color: var(--sketch-line);
    background: var(--paper-dark);
    box-shadow: 1px 1px 0 0 var(--sketch-line);
    transform: rotate(-5deg);
}

/* ===== Account List ===== */
.count {
    font-family: var(--font-hand);
    font-weight: 400;
    color: var(--ink-faint);
    font-size: 1rem;
    margin-left: 4px;
}

/* ===== Hand-drawn Account Cards (Grid Tiles) ===== */
#cardsContainer {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
    margin-top: 4px;
}

.account-card {
    background: var(--paper);
    background-image:
        repeating-linear-gradient(transparent, transparent 31px, rgba(0,0,0,0.03) 31px, rgba(0,0,0,0.03) 32px);
    border: 2.5px solid var(--sketch-line);
    border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
    padding: 14px 16px 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
    overflow: hidden;
    cursor: grab;
    box-shadow:
        3px 3px 0 0 color-mix(in srgb, var(--sketch-line) 25%, transparent),
        4px 4px 0 0 color-mix(in srgb, var(--sketch-line) 10%, transparent);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.account-card:nth-child(odd) {
    transform: rotate(-0.5deg);
}
.account-card:nth-child(even) {
    transform: rotate(0.4deg);
}
.account-card:nth-child(3n) {
    transform: rotate(-0.3deg);
}
.account-card:nth-child(5n+1) {
    transform: rotate(0.5deg);
}

.account-card:hover {
    z-index: 2;
    box-shadow:
        2px 2px 0 0 color-mix(in srgb, var(--sketch-line) 35%, transparent),
        3px 3px 0 0 color-mix(in srgb, var(--sketch-line) 15%, transparent);
    transform: rotate(0deg) translateY(-2px);
}

/* Drag handle */
.drag-handle {
    position: absolute;
    top: 4px;
    right: 6px;
    opacity: 0.2;
    color: var(--ink-faint);
    transition: opacity 0.15s;
    padding: 4px;
    line-height: 0;
    z-index: 3;
    pointer-events: none;
}
.account-card:hover .drag-handle {
    opacity: 0.55;
}

/* Sortable drag states */
.sortable-ghost {
    opacity: 0.3;
    border-style: dashed;
    background: color-mix(in srgb, var(--sketch-line) 8%, transparent);
}
.sortable-chosen {
    cursor: grabbing;
    opacity: 0.7;
    box-shadow:
        6px 6px 0 0 color-mix(in srgb, var(--sketch-line) 30%, transparent),
        8px 8px 0 0 color-mix(in srgb, var(--sketch-line) 12%, transparent) !important;
    transform: rotate(2deg) scale(1.03) !important;
}

/* Card Header: issuer + account */
.account-info {
    text-align: center;
}

.account-info .issuer {
    font-family: var(--font-hand);
    font-weight: 700;
    font-size: 1.15rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--ink);
    line-height: 1.3;
}

.account-info .account-name {
    font-family: var(--font-hand);
    font-size: 0.85rem;
    color: var(--ink-faint);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Card Body: TOTP code */
.account-totp {
    text-align: center;
}

.totp-code {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 5px;
    color: var(--pencil-blue);
    user-select: all;
    cursor: pointer;
    display: block;
    padding: 4px 0 0;
    transition: all 0.2s ease;
    line-height: 1.2;
}

.totp-code:hover {
    transform: scale(1.05);
}

.totp-code.expiring {
    color: var(--pencil-red);
    animation: wiggle 0.3s ease-in-out infinite alternate;
}

@keyframes wiggle {
    from { transform: rotate(-1deg); }
    to   { transform: rotate(1deg); }
}

/* Progress bar below code */
.account-card .progress-bar {
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        var(--pencil-blue) 0px,
        var(--pencil-blue) 5px,
        transparent 5px,
        transparent 7px
    );
    transition: width 1s linear;
    border-radius: 2px;
}

.account-card .progress-bar.expiring {
    background: repeating-linear-gradient(
        90deg,
        var(--pencil-red) 0px,
        var(--pencil-red) 5px,
        transparent 5px,
        transparent 7px
    );
}

/* Card Footer: timer + actions */
.account-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 0 10px;
}

.totp-timer {
    font-family: var(--font-hand);
    font-size: 0.9rem;
    color: var(--ink-faint);
}

.account-actions {
    display: flex;
    gap: 3px;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--ink-faint);
    border: 3px dashed var(--ink-faint);
    border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
    background: var(--paper-dark);
    transform: rotate(-0.2deg);
}

.empty-state.hidden {
    display: none;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    color: var(--ink-faint);
    animation: float 3s ease-in-out infinite;
}

.empty-icon svg {
    display: block;
    margin: 0 auto;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50% { transform: translateY(-8px) rotate(2deg); }
}

.empty-state p {
    font-family: var(--font-hand);
    font-size: 1.3rem;
    color: var(--ink-light);
}

.empty-hint {
    font-family: var(--font-hand);
    font-size: 1rem !important;
    color: var(--ink-faint) !important;
    margin-top: 6px;
}

/* ===== Form (Dialog) ===== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
    text-align: left;
}

.form-group label {
    font-family: var(--font-hand);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--ink-light);
}

.hint {
    font-weight: 400;
    color: var(--ink-faint);
    font-size: 0.9rem;
}

.form-group input {
    padding: 10px 12px;
    background: transparent;
    border: none;
    border-bottom: 2.5px dashed var(--ink-faint);
    border-radius: 0;
    font-size: 1rem;
    transition: border-color 0.2s ease;
    outline: none;
    font-family: var(--font-mono);
    color: var(--ink);
}

.form-group input:focus {
    border-bottom-style: solid;
    border-bottom-color: var(--pencil-blue);
    border-bottom-width: 3px;
}

.form-group input::placeholder {
    color: var(--ink-faint);
    font-style: italic;
    font-family: var(--font-hand);
    font-size: 0.95rem;
}

.form-group input:invalid:not(:placeholder-shown) {
    border-bottom-color: var(--pencil-red);
}

.form-error {
    color: var(--pencil-red);
    font-family: var(--font-hand);
    font-size: 1rem;
    min-height: 22px;
    margin-bottom: 4px;
}

/* ===== Notification Toast ===== */
.notification {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--paper);
    color: var(--ink);
    padding: 14px 28px;
    border: 2.5px solid var(--sketch-line);
    border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
    font-family: var(--font-hand);
    font-size: 1.1rem;
    font-weight: 600;
    z-index: 200;
    opacity: 0;
    box-shadow: 3px 3px 0 0 rgba(0,0,0,0.15);
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
}

.notification.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.notification.success {
    border-color: var(--pencil-green);
    background: color-mix(in srgb, var(--pencil-green) 10%, var(--paper));
}

.notification.error {
    border-color: var(--pencil-red);
    background: color-mix(in srgb, var(--pencil-red) 10%, var(--paper));
}

/* ===== Dialog Overlay ===== */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.dialog-overlay:not(.hidden) {
    opacity: 1;
    pointer-events: auto;
}

.dialog-overlay.hidden {
    display: none;
}

.dialog {
    background: var(--paper);
    background-image:
        repeating-linear-gradient(transparent, transparent 30px, rgba(0,0,0,0.02) 30px, rgba(0,0,0,0.02) 31px);
    border: 3px solid var(--sketch-line);
    border-radius: 255px 25px 225px 25px / 25px 225px 25px 255px;
    padding: 28px;
    max-width: 420px;
    width: 90%;
    box-shadow:
        4px 4px 0 0 color-mix(in srgb, var(--sketch-line) 30%, transparent),
        6px 6px 0 0 color-mix(in srgb, var(--sketch-line) 10%, transparent);
    text-align: center;
    position: relative;
}

.dialog-form {
    max-width: 460px;
    text-align: left;
}

.dialog h3 {
    font-family: var(--font-hand);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--ink);
}

.dialog p {
    font-family: var(--font-hand);
    color: var(--ink-light);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.dialog-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.dialog-close-btn {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 34px;
    height: 34px;
    padding: 5px;
    border: 2.5px solid var(--sketch-line);
    background: var(--paper);
    cursor: pointer;
    color: var(--ink);
    border-radius: 255px 15px 225px 15px / 15px 225px 15px 255px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    box-shadow:
        2px 2px 0 0 var(--sketch-line),
        3px 3px 0 0 color-mix(in srgb, var(--sketch-line) 20%, transparent);
    transform: rotate(3deg);
}

.dialog-close-btn:hover {
    transform: translate(1px, 1px) rotate(0deg);
    box-shadow:
        1px 1px 0 0 var(--sketch-line),
        2px 2px 0 0 color-mix(in srgb, var(--sketch-line) 20%, transparent);
    color: var(--pencil-red);
}

.dialog-close-btn:active {
    transform: translate(2px, 2px) rotate(-2deg);
    box-shadow: 1px 1px 0 0 var(--sketch-line);
}

/* ===== Detail Modal (double-click card) ===== */
.dialog-detail {
    max-width: 480px;
    text-align: center;
    padding: 32px 28px 20px;
}

.detail-info {
    text-align: center;
    margin-bottom: 12px;
}

.detail-issuer {
    font-family: var(--font-hand);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--ink);
    line-height: 1.3;
}

.detail-account {
    font-family: var(--font-hand);
    font-size: 1rem;
    color: var(--ink-faint);
}

.detail-totp {
    text-align: center;
    margin-bottom: 10px;
}

.detail-code {
    font-family: var(--font-mono);
    font-size: 3.2rem;
    font-weight: 700;
    letter-spacing: 10px;
    color: var(--pencil-blue);
    user-select: all;
    cursor: pointer;
    line-height: 1.2;
    transition: transform 0.15s ease;
}

.detail-code:hover {
    transform: scale(1.05);
}

.detail-code.expiring {
    color: var(--pencil-red);
    animation: wiggle 0.3s ease-in-out infinite alternate;
}

.detail-progress {
    margin: 0 auto 14px;
    max-width: 260px;
    height: 5px;
    background: color-mix(in srgb, var(--sketch-line) 12%, transparent);
    border-radius: 3px;
    overflow: hidden;
}

.detail-progress .progress-bar {
    height: 100%;
    background: repeating-linear-gradient(
        90deg,
        var(--pencil-blue) 0px,
        var(--pencil-blue) 5px,
        transparent 5px,
        transparent 7px
    );
    transition: width 1s linear;
    border-radius: 2px;
}

.detail-progress .progress-bar.expiring {
    background: repeating-linear-gradient(
        90deg,
        var(--pencil-red) 0px,
        var(--pencil-red) 5px,
        transparent 5px,
        transparent 7px
    );
}

.detail-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.detail-footer .totp-timer {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--ink-faint);
    min-width: 36px;
}

.dialog-actions button {
    flex: 1;
    min-width: 100px;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    header h1 {
        font-size: 1.7rem;
    }

    .totp-code {
        font-size: 1.3rem;
        letter-spacing: 2px;
    }

    .dialog {
        padding: 20px;
    }
}

/* ===== Dark Mode - Kraft paper / Blackboard ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --paper: #2a2520;
        --paper-dark: #221e1a;
        --ink: #e8dcc8;
        --ink-light: #b8a88a;
        --ink-faint: #6b5e4e;
        --sketch-line: #5c4e3a;
        --pencil-blue: #7b9ec7;
        --pencil-red: #c77a7a;
        --pencil-green: #7a9e7a;
    }

    body {
        background-image:
            radial-gradient(ellipse at 20% 50%, rgba(255,255,255,0.01) 0%, transparent 50%),
            radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.02) 0%, transparent 50%);
    }

    .notification {
        color: var(--ink);
    }

    .notification.success {
        background: color-mix(in srgb, var(--pencil-green) 20%, var(--paper));
    }

    .notification.error {
        background: color-mix(in srgb, var(--pencil-red) 20%, var(--paper));
    }
}