/* ==========================================================================
   Password Generator - Lime Theme
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
    /* Colors - Lime Theme */
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: rgba(18, 18, 26, 0.8);

    --color-primary: #84cc16;
    --color-primary-glow: rgba(132, 204, 22, 0.4);
    --color-primary-dark: #65a30d;
    --color-accent: #a3e635;
    --color-accent-glow: rgba(163, 230, 53, 0.3);

    --color-success: #22c55e;
    --color-warning: #eab308;
    --color-danger: #ef4444;

    --color-text: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(132, 204, 22, 0.3);

    /* Strength Colors */
    --strength-weak: #ef4444;
    --strength-medium: #f59e0b;
    --strength-strong: #22c55e;
    --strength-very-strong: #84cc16;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* --------------------------------------------------------------------------
   Animated Background
   -------------------------------------------------------------------------- */
.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.bg-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(132, 204, 22, 0.2), transparent),
        radial-gradient(ellipse 60% 40% at 20% 80%, rgba(163, 230, 53, 0.1), transparent);
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent);
}

.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.35;
    animation: float 25s ease-in-out infinite;
}

.bg-glow--1 {
    width: 500px;
    height: 500px;
    background: var(--color-primary);
    top: -150px;
    left: -100px;
}

.bg-glow--2 {
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    bottom: -100px;
    right: -100px;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(20px, -20px) scale(1.03); }
    66% { transform: translate(-15px, 15px) scale(0.97); }
}

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    padding-top: 80px;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.site-nav__brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text);
}

.site-nav__icon {
    font-size: 1.25rem;
    color: var(--color-primary);
}

.site-nav__text {
    font-size: 1.1rem;
    font-weight: 700;
}

.site-nav__accent {
    color: var(--color-accent);
}

.site-nav__share {
    display: flex;
    gap: var(--spacing-sm);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.header__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(132, 204, 22, 0.1);
    border: 1px solid rgba(132, 204, 22, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.header__badge-icon {
    font-size: 1rem;
}

.header__title {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header__tagline {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #000;
    box-shadow: 0 0 30px var(--color-primary-glow);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px var(--color-primary-glow);
}

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

.btn--secondary:hover {
    border-color: var(--color-border-hover);
    background: rgba(255, 255, 255, 0.05);
}

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

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

.btn--small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8125rem;
}

.btn--large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    width: 100%;
}

.btn svg {
    transition: transform var(--transition-fast);
}

.btn:hover svg {
    transform: rotate(15deg);
}

/* --------------------------------------------------------------------------
   Password Display Card
   -------------------------------------------------------------------------- */
.password-display-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-lg);
}

.password-output-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.password-output {
    width: 100%;
    padding: var(--spacing-lg);
    padding-right: 60px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    text-overflow: ellipsis;
}

.password-output:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.password-output::placeholder {
    color: var(--color-text-muted);
    font-size: 1rem;
    letter-spacing: normal;
}

.copy-btn {
    position: absolute;
    right: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    color: var(--color-primary);
    background: rgba(132, 204, 22, 0.1);
}

.copy-btn.copied {
    color: var(--color-success);
}

.copy-btn .hidden {
    display: none;
}

/* --------------------------------------------------------------------------
   Strength Meter
   -------------------------------------------------------------------------- */
.strength-section {
    margin-bottom: var(--spacing-lg);
}

.strength-meter {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.strength-bar {
    height: 100%;
    width: 0%;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.strength-bar[data-strength="weak"] {
    width: 25%;
    background: var(--strength-weak);
}

.strength-bar[data-strength="medium"] {
    width: 50%;
    background: var(--strength-medium);
}

.strength-bar[data-strength="strong"] {
    width: 75%;
    background: var(--strength-strong);
}

.strength-bar[data-strength="very-strong"] {
    width: 100%;
    background: linear-gradient(90deg, var(--strength-strong), var(--strength-very-strong));
}

.strength-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.strength-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.strength-label[data-strength="weak"] {
    color: var(--strength-weak);
}

.strength-label[data-strength="medium"] {
    color: var(--strength-medium);
}

.strength-label[data-strength="strong"] {
    color: var(--strength-strong);
}

.strength-label[data-strength="very-strong"] {
    color: var(--strength-very-strong);
}

.crack-time {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Options Card
   -------------------------------------------------------------------------- */
.options-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-lg);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

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

/* Option Group */
.option-group {
    margin-bottom: var(--spacing-xl);
}

.option-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.option-label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.option-value {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* Range Slider */
.range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    outline: none;
    cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 15px var(--color-primary-glow);
    transition: transform var(--transition-fast);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 15px var(--color-primary-glow);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* Options Grid */
.options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (max-width: 500px) {
    .options-grid {
        grid-template-columns: 1fr;
    }
}

/* Toggle Option */
.toggle-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-option:hover {
    border-color: var(--color-border-hover);
    background: rgba(255, 255, 255, 0.04);
}

.toggle-option--full {
    grid-column: 1 / -1;
}

.toggle-option input {
    display: none;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: var(--color-text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.toggle-option input:checked + .toggle-switch {
    background: var(--color-primary);
}

.toggle-option input:checked + .toggle-switch::after {
    left: 23px;
    background: #000;
}

.toggle-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.toggle-title {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
}

.toggle-example {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Multi-Password Card
   -------------------------------------------------------------------------- */
.multi-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    margin-bottom: var(--spacing-lg);
}

.multi-controls {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    flex-wrap: wrap;
}

.multi-controls .form-group {
    flex: 1;
    min-width: 150px;
}

.multi-controls .btn {
    flex-shrink: 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

/* Hide number input spinners */
.form-input::-webkit-outer-spin-button,
.form-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.form-input[type=number] {
    -moz-appearance: textfield;
}

/* Multi Results */
.multi-results {
    margin-top: var(--spacing-lg);
    animation: fadeInUp 0.3s ease;
}

.multi-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.multi-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.multi-item__password {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.multi-item__copy {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.multi-item__copy:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(132, 204, 22, 0.1);
}

.multi-item__copy.copied {
    color: var(--color-success);
    border-color: var(--color-success);
}

/* --------------------------------------------------------------------------
   Notice Card
   -------------------------------------------------------------------------- */
.notice-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: rgba(132, 204, 22, 0.05);
    border: 1px solid rgba(132, 204, 22, 0.2);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.notice-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: rgba(132, 204, 22, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.notice-content {
    flex: 1;
}

.notice-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.notice-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Modal
   -------------------------------------------------------------------------- */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal__content {
    position: relative;
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-xl);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal__close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.modal__close:hover {
    color: var(--color-text);
}

.modal__title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.modal__note {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.modal__buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.modal__buttons .share-btn {
    width: 100%;
    justify-content: center;
    padding: var(--spacing-md);
}

/* Share Buttons */
.share-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-decoration: none;
}

.share-btn--twitter {
    background: #000;
    color: #fff;
    border: 1px solid #333;
}

.share-btn--twitter:hover {
    background: #1a1a1a;
}

.share-btn--linkedin {
    background: #0077b5;
    color: #fff;
}

.share-btn--linkedin:hover {
    background: #006097;
}

.share-btn--copy {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.share-btn--copy:hover {
    border-color: var(--color-border-hover);
}

/* --------------------------------------------------------------------------
   Toast
   -------------------------------------------------------------------------- */
.toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.9375rem;
    animation: toastIn 0.3s ease;
    z-index: 1001;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

.footer__credit {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer__credit a {
    color: var(--color-primary);
    text-decoration: none;
}

.footer__credit a:hover {
    text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Accessibility
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Utility
   -------------------------------------------------------------------------- */
[hidden] {
    display: none !important;
}