/* ==========================================================================
   WebsiteLearn - Responsive Styles
   ========================================================================== */

/* ==========================================================================
   Tablets & small laptops
   ========================================================================== */

@media (max-width: 900px) {
    .lesson-content {
        padding: 32px 24px;
    }

    .playground {
        grid-template-columns: 1fr;
    }

    .editor-panel {
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .search-input {
        width: 180px;
    }

    .search-input:focus {
        width: 200px;
    }
}

/* ==========================================================================
   Mobile
   ========================================================================== */

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    /* Navigation */
    .nav {
        height: 58px;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 58px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        align-items: stretch;
        padding: 8px 16px 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: transform 0.3s ease;
        z-index: 999;
        gap: 4px;
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .nav-link {
        padding: 12px 16px;
        border-radius: var(--radius);
    }

    .nav-link.active {
        background: var(--primary-dim);
    }

    .search-container {
        order: 3;
    }

    .search-input {
        width: 36px;
        padding: 8px 8px;
        border-radius: 50%;
        cursor: pointer;
        position: relative;
        transition: all 0.3s ease;
    }

    .search-input::placeholder {
        color: transparent;
    }

    .search-input.focused,
    .search-input:focus {
        width: 200px;
        border-radius: var(--radius);
        cursor: text;
    }

    .search-input.focused::placeholder,
    .search-input:focus::placeholder {
        color: var(--text-muted);
    }

    .search-icon {
        left: 8px;
    }

    .search-results {
        right: 0;
        left: auto;
        width: 280px;
    }

    /* Login nav items */
    .nav-actions {
        gap: 8px;
    }

    .theme-toggle {
        padding: 7px;
    }

    /* Hero */
    .hero {
        padding: 56px 0 40px;
    }

    .hero-title {
        font-size: 2.4rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
        padding: 0 10px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
        padding: 0 30px;
    }

    .btn-large {
        font-size: 1rem;
    }

    /* Sections */
    .paths {
        padding: 40px 0;
    }

    .path-cards {
        grid-template-columns: 1fr;
    }

    .features {
        padding: 40px 0;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    /* Pages */
    .learn-page, .practice-page, .projects-page {
        padding: 28px 0 40px;
    }

    .page-title {
        font-size: 1.8rem;
    }

    .lesson-grid {
        grid-template-columns: 1fr;
    }

    .lesson-card p {
        min-height: auto;
    }

    /* Lesson page */
    .lesson-layout {
        display: block;
    }

    .lesson-sidebar {
        position: fixed;
        top: 58px;
        left: 0;
        bottom: 0;
        width: 280px;
        height: calc(100vh - 58px);
        z-index: 950;
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }

    .lesson-sidebar.open {
        transform: translateX(0);
    }

    .sidebar-close {
        display: block;
    }

    .sidebar-toggle {
        display: flex;
        position: fixed;
        bottom: 20px;
        left: 20px;
        z-index: 900;
    }

    .lesson-content {
        padding: 24px 16px;
    }

    .lesson-title {
        font-size: 1.7rem;
    }

    .lesson-body {
        font-size: 0.98rem;
    }

    .lesson-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .lesson-nav-arrow {
        width: 100%;
    }

    .lesson-nav-arrow.next {
        text-align: left;
        align-items: flex-start;
    }

    .code-block {
        font-size: 0.8rem;
        padding: 12px;
        overflow-x: auto;
    }

    .challenge-block {
        padding: 20px;
    }

    .editor-wrapper {
        min-height: 220px;
    }

    #codeEditor, .lesson-editor-textarea {
        min-height: 220px;
        font-size: 0.8rem;
        padding: 12px;
    }

    .console-output {
        min-height: 200px;
        max-height: 280px;
    }

    .line-numbers {
        font-size: 0.8rem;
        padding: 12px 6px;
        min-width: 32px;
    }

    /* Challenge cards */
    .challenge-list {
        grid-template-columns: 1fr;
    }

    /* Projects */
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-preview {
        height: 140px;
    }

    /* Demo on mobile */
    .project-demo {
        padding: 20px;
    }

    .counter-display {
        font-size: 2.8rem;
    }

    .todo-input-row {
        flex-direction: column;
    }

    .todo-input-row .btn {
        width: 100%;
    }

    /* Path tabs */
    .path-tabs {
        gap: 8px;
    }

    .path-tab {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    /* Touch targets & remove tap delay */
    .btn,
    .nav-link,
    .path-tab,
    .lesson-card,
    .sidebar-item,
    a {
        touch-action: manipulation;
    }

    .btn,
    .nav-link {
        min-height: 44px;
    }

    .sidebar-item {
        padding-top: 12px;
        padding-bottom: 12px;
    }

    /* Prevent iOS zoom-on-focus (controls must be >= 16px) */
    input,
    select,
    textarea,
    #codeEditor,
    .lesson-editor-textarea,
    .search-input {
        font-size: 16px;
    }

    /* Safe areas for notched / rounded devices */
    .nav {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .lesson-sidebar {
        padding-left: env(safe-area-inset-left);
        padding-bottom: env(safe-area-inset-bottom);
    }

    .lesson-content {
        padding-left: calc(16px + env(safe-area-inset-left));
        padding-right: calc(16px + env(safe-area-inset-right));
        padding-bottom: calc(24px + env(safe-area-inset-bottom));
    }

    .sidebar-toggle {
        left: calc(20px + env(safe-area-inset-left));
        bottom: calc(20px + env(safe-area-inset-bottom));
    }

    .container {
        padding-left: calc(16px + env(safe-area-inset-left));
        padding-right: calc(16px + env(safe-area-inset-right));
    }
}

/* ==========================================================================
   Small phones
   ========================================================================== */

@media (max-width: 380px) {
    .hero-title {
        font-size: 2rem;
    }

    .search-input:focus {
        width: 160px;
    }

    .lesson-cat {
        font-size: 0.7rem;
    }

    .lesson-title {
        font-size: 1.5rem;
    }

    .code-block {
        font-size: 0.75rem;
    }
}

/* ==========================================================================
   Landscape phones
   ========================================================================== */

@media (max-width: 768px) and (orientation: landscape) {
    .lesson-sidebar {
        padding-bottom: 100px;
    }

    .lesson-content {
        padding: 20px 16px 80px;
    }

    .hero {
        padding: 40px 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .path-cards {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 16px;
    }
}

/* ==========================================================================
   Large screens
   ========================================================================== */

@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }

    .lesson-content {
        max-width: 900px;
    }
}

/* ==========================================================================
   Reduced motion
   ========================================================================== */

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

/* ==========================================================================
   Print friendly
   ========================================================================== */

@media print {
    .header, .footer, .sidebar-toggle, .lesson-sidebar, .nav-actions {
        display: none;
    }

    .lesson-layout {
        display: block;
    }

    .lesson-content {
        padding: 0;
        max-width: none;
    }
}