/* ============================================
   Pear Guard — Apple-Inspired Styles
   ============================================ */

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

:root {
    --color-bg: #ffffff;
    --color-surface: #f5f5f7;
    --color-card: #ffffff;
    --color-text: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-accent: #007AFF;
    --color-accent-hover: #0066d6;
    --color-border: #d2d2d7;
    --color-shadow: rgba(0, 0, 0, 0.08);
    --color-danger: #ff3b30;
    --color-warning: #ff9500;
    --color-success: #34c759;
    --color-strong: #007AFF;
    --color-input-bg: #f5f5f7;
    --color-input-text: #1d1d1f;
    --color-input-border: #d2d2d7;
    --color-history-item: #f5f5f7;
    --radius-card: 16px;
    --radius-input: 12px;
    --radius-btn: 12px;
    --font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

[data-theme="dark"] {
    --color-bg: #1c1c1e;
    --color-surface: #2c2c2e;
    --color-card: #2c2c2e;
    --color-text: #f5f5f7;
    --color-text-secondary: #98989d;
    --color-border: #3a3a3c;
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-input-bg: #3a3a3c;
    --color-input-text: #f5f5f7;
    --color-input-border: #48484a;
    --color-history-item: #3a3a3c;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background var(--transition), color var(--transition);
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Header
   ============================================ */

.header {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.8);
    transition: background var(--transition), border-color var(--transition);
}

[data-theme="dark"] .header {
    background: rgba(44, 44, 46, 0.8);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.header__brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header__logo {
    height: 44px;
    width: auto;
    border-radius: 8px;
}

.header__title {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--color-surface);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: background var(--transition), transform 0.2s;
}

.theme-toggle:hover {
    background: var(--color-border);
    transform: scale(1.05);
}

/* ============================================
   Main
   ============================================ */

.main {
    padding: 40px 0 60px;
}

/* ============================================
   Cards
   ============================================ */

.card {
    background: var(--color-card);
    border-radius: var(--radius-card);
    padding: 28px 32px;
    margin-bottom: 24px;
    box-shadow: 0 2px 12px var(--color-shadow);
    border: 1px solid var(--color-border);
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card__title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.card__desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

/* ============================================
   Inputs
   ============================================ */

.input-group {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.input-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    min-width: 200px;
}

.input {
    width: 100%;
    padding: 12px 44px 12px 16px;
    font-size: 1rem;
    font-family: var(--font-family);
    background: var(--color-input-bg);
    color: var(--color-input-text);
    border: 1px solid var(--color-input-border);
    border-radius: var(--radius-input);
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.2);
}

.input::placeholder {
    color: var(--color-text-secondary);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-family);
    border: none;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

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

.btn--primary:hover {
    background: var(--color-accent-hover);
    transform: scale(1.02);
}

.btn--primary:active {
    transform: scale(0.98);
}

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

.btn--secondary:hover {
    background: var(--color-border);
}

.btn--icon {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 1.2rem;
    padding: 8px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
    line-height: 1;
}

.btn--icon:hover {
    background: var(--color-border);
}

/* ============================================
   Result
   ============================================ */

.result {
    margin-top: 16px;
    padding: 14px 18px;
    border-radius: var(--radius-input);
    font-size: 0.95rem;
    font-weight: 500;
    display: none;
    animation: fadeSlideIn 0.3s ease;
}

.result--visible {
    display: block;
}

.result--compromised {
    background: rgba(255, 59, 48, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(255, 59, 48, 0.2);
}

.result--safe {
    background: rgba(52, 199, 89, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(52, 199, 89, 0.2);
}

.result--error {
    background: rgba(255, 149, 0, 0.1);
    color: var(--color-warning);
    border: 1px solid rgba(255, 149, 0, 0.2);
}

/* ============================================
   Generator Settings
   ============================================ */

.generator-settings {
    margin-bottom: 20px;
}

.setting {
    margin-bottom: 16px;
}

.setting--row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.setting__label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--color-text);
    cursor: pointer;
    user-select: none;
}

.setting__label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
    cursor: pointer;
}

/* Slider */
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--color-border);
    outline: none;
    margin-top: 8px;
    transition: background var(--transition);
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 122, 255, 0.3);
    transition: transform 0.2s;
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    border: none;
}

/* ============================================
   Strength Meter
   ============================================ */

.strength-meter {
    margin-top: 16px;
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.strength-meter__bar {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: width 0.4s ease, background 0.4s ease;
}

.strength-label {
    margin-top: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    transition: color var(--transition);
}

/* ============================================
   Checklist
   ============================================ */

.checklist {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checklist__item {
    position: relative;
    padding-left: 28px;
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.5;
}

.checklist__item::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.1rem;
}

/* ============================================
   History
   ============================================ */

.history {
    margin-bottom: 16px;
}

.history__empty {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    text-align: center;
    padding: 20px 0;
}

.history__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    background: var(--color-history-item);
    border-radius: var(--radius-input);
    margin-bottom: 8px;
    font-size: 0.85rem;
    font-family: 'SF Mono', 'Menlo', monospace;
    word-break: break-all;
    transition: background var(--transition);
}

.history__item:last-child {
    margin-bottom: 0;
}

.history__hash {
    color: var(--color-text-secondary);
    flex: 1;
    margin-right: 12px;
}

.history__status {
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.history__status--safe {
    color: var(--color-success);
}

.history__status--compromised {
    color: var(--color-danger);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    border-top: 1px solid var(--color-border);
    padding: 24px 0;
    text-align: center;
    transition: border-color var(--transition);
}

.footer__text {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 600px) {
    .card {
        padding: 20px 16px;
    }

    .input-group {
        flex-direction: column;
    }

    .input-wrapper {
        width: 100%;
        min-width: unset;
    }

    .btn {
        width: 100%;
    }

    .setting--row {
        flex-direction: column;
        gap: 10px;
    }

    .header__title {
        font-size: 1.1rem;
    }

    .header__logo {
        height: 36px;
    }
}