/**
 * Kurdish Dictionary Vejin - Zhween Classroom Tools
 *
 * Clean search interface for VejinLex Kurdish dictionaries
 * Supports RTL languages and dark mode
 */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

:root {
    /* Brand Colors */
    --kdv-primary: #15aebf;
    --kdv-primary-hover: #0e9aa8;
    --kdv-primary-light: rgba(21, 174, 191, 0.1);
    --kdv-gold: #ffd93d;

    /* Surface Colors */
    --kdv-bg: #f8fafc;
    --kdv-surface: #ffffff;

    /* Text Colors */
    --kdv-text: #1e293b;
    --kdv-text-secondary: #64748b;
    --kdv-text-muted: #94a3b8;

    /* Border & Dividers */
    --kdv-border: #e2e8f0;
    --kdv-border-light: #f1f5f9;

    /* Shadows */
    --kdv-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --kdv-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --kdv-shadow-primary: 0 4px 15px rgba(21, 174, 191, 0.3);

    /* Spacing & Sizing */
    --kdv-radius: 12px;
    --kdv-radius-sm: 8px;
    --kdv-radius-lg: 16px;
    --kdv-radius-xl: 24px;

    /* Transitions */
    --kdv-transition: 150ms ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --kdv-bg: #0f172a;
        --kdv-surface: #1e293b;
        --kdv-text: #f1f5f9;
        --kdv-text-secondary: #94a3b8;
        --kdv-text-muted: #64748b;
        --kdv-border: #334155;
        --kdv-border-light: #1e293b;
        --kdv-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
        --kdv-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.4);
    }
}

/* ==========================================================================
   Base Container
   ========================================================================== */

.kdv {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 95vh;
    height: 100%;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--kdv-bg) 0%, var(--kdv-border-light) 100%);
    color: var(--kdv-text);
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Tool content area override */
.tool-content-area .kdv {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    padding: 1.5rem;
    gap: 1rem;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   Widget Card
   ========================================================================== */

.kdv__widget {
    background: var(--kdv-surface);
    border-radius: var(--kdv-radius-xl);
    padding: 2.5rem;
    box-shadow:
        0 4px 6px -1px rgba(21, 174, 191, 0.1),
        0 10px 30px -5px rgba(21, 174, 191, 0.15),
        0 0 0 1px rgba(21, 174, 191, 0.05);
    max-width: 500px;
    width: 100%;
    position: relative;
    overflow: hidden;
}

.kdv__widget::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--kdv-primary), var(--kdv-gold), var(--kdv-primary));
}

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

.kdv__header {
    text-align: center;
    margin-bottom: 2rem;
}

.kdv__logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.kdv__logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--kdv-primary) 0%, var(--kdv-primary-hover) 100%);
    border-radius: var(--kdv-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(21, 174, 191, 0.3);
}

.kdv__logo-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--kdv-gold);
}

.kdv__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--kdv-primary-hover);
    margin: 0;
}

.kdv__subtitle {
    color: var(--kdv-text-secondary);
    font-size: 0.95rem;
    margin: 0.5rem 0 0 0;
}

.kdv__powered-by {
    font-size: 0.8rem;
    color: var(--kdv-text-muted);
    margin: 0.25rem 0 0 0;
}

.kdv__powered-by a {
    color: var(--kdv-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--kdv-transition);
}

.kdv__powered-by a:hover {
    text-decoration: underline;
    color: var(--kdv-primary-hover);
}

/* ==========================================================================
   Search Form
   ========================================================================== */

.kdv__form {
    position: relative;
}

.kdv__input-wrapper {
    position: relative;
    margin-bottom: 1rem;
}

.kdv__input {
    width: 100%;
    padding: 1.125rem 1.5rem;
    padding-inline-start: 3.5rem;
    font-size: 1.1rem;
    font-family: inherit;
    border: 2px solid var(--kdv-border);
    border-radius: var(--kdv-radius);
    outline: none;
    transition: all var(--kdv-transition);
    background: var(--kdv-border-light);
    color: var(--kdv-text);
}

.kdv__input::placeholder {
    color: var(--kdv-text-secondary);
    opacity: 0.7;
}

.kdv__input:focus {
    border-color: var(--kdv-primary);
    background: var(--kdv-surface);
    box-shadow: 0 0 0 4px var(--kdv-primary-light);
}

.kdv__input-icon {
    position: absolute;
    inset-inline-start: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    fill: var(--kdv-text-secondary);
    transition: fill var(--kdv-transition);
    pointer-events: none;
}

.kdv__input:focus ~ .kdv__input-icon {
    fill: var(--kdv-primary);
}

/* ==========================================================================
   Search Button
   ========================================================================== */

.kdv__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-family: inherit;
    font-weight: 600;
    border: none;
    border-radius: var(--kdv-radius-sm);
    cursor: pointer;
    transition: all var(--kdv-transition);
}

.kdv__btn--primary {
    width: 100%;
    background: linear-gradient(135deg, var(--kdv-primary) 0%, var(--kdv-primary-hover) 100%);
    color: white;
    box-shadow: var(--kdv-shadow-primary);
}

.kdv__btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(21, 174, 191, 0.4);
}

.kdv__btn--primary:active {
    transform: translateY(0);
}

.kdv__btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* ==========================================================================
   Language Options
   ========================================================================== */

.kdv__languages {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.25rem;
    flex-wrap: wrap;
    justify-content: center;
}

.kdv__lang-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-family: inherit;
    background: var(--kdv-border-light);
    color: var(--kdv-text-secondary);
    border: 2px solid transparent;
    border-radius: var(--kdv-radius-sm);
    cursor: pointer;
    transition: all var(--kdv-transition);
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.kdv__lang-btn:hover {
    background: var(--kdv-border);
}

.kdv__lang-btn.active,
.kdv__lang-btn[aria-pressed="true"] {
    background: var(--kdv-primary-light);
    color: var(--kdv-primary-hover);
    border-color: var(--kdv-primary);
}

.kdv__lang-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--kdv-primary-light);
}

/* ==========================================================================
   Tips Section
   ========================================================================== */

.kdv__tips {
    margin-top: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(255, 217, 61, 0.1) 0%, rgba(21, 174, 191, 0.05) 100%);
    border-radius: var(--kdv-radius-sm);
    border-inline-start: 4px solid var(--kdv-gold);
}

.kdv__tips-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--kdv-primary-hover);
    margin: 0 0 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.kdv__tips-title svg {
    width: 18px;
    height: 18px;
    fill: var(--kdv-gold);
}

.kdv__tips-text {
    font-size: 0.85rem;
    color: var(--kdv-text-secondary);
    line-height: 1.8;
    margin: 0;
}

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

@media (max-width: 480px) {
    .kdv__widget {
        padding: 1.5rem;
    }

    .kdv__title {
        font-size: 1.5rem;
    }

    .kdv__input {
        padding: 0.875rem 1.25rem;
        padding-inline-start: 3rem;
        font-size: 1rem;
    }

    .kdv__btn--primary {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }

    .kdv__languages {
        gap: 0.375rem;
    }

    .kdv__lang-btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.8rem;
        min-height: 40px;
    }
}

/* ==========================================================================
   Fullscreen Mode
   ========================================================================== */

.tool-page-wrapper:fullscreen .kdv,
.tool-page-wrapper:-webkit-full-screen .kdv {
    padding: 2rem;
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .kdv__input,
    .kdv__btn,
    .kdv__lang-btn {
        transition: none;
    }

    .kdv__btn--primary:hover {
        transform: none;
    }
}

/* ==========================================================================
   RTL Support
   ========================================================================== */

[dir="rtl"] .kdv__tips {
    border-right: 4px solid var(--kdv-gold);
    border-left: none;
}

[dir="ltr"] .kdv__tips {
    border-left: 4px solid var(--kdv-gold);
    border-right: none;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .kdv {
        min-height: auto;
        padding: 0;
    }

    .kdv__widget {
        box-shadow: none;
        border: 1px solid var(--kdv-border);
    }
}