/* Zenith Documentation - Responsive & Animations */
/* Enhanced responsive design and smooth animations */

/* ===== ADVANCED ANIMATIONS ===== */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 5px var(--primary-glow);
    }

    50% {
        box-shadow: 0 0 20px var(--primary-glow), 0 0 30px var(--primary-glow);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }

    100% {
        background-position: 1000px 0;
    }
}

/* ===== ANIMATION CLASSES ===== */

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-down {
    animation: fadeInDown 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.scale-in {
    animation: scaleIn 0.5s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

.glow {
    animation: glow 2s infinite;
}

.float {
    animation: float 3s ease-in-out infinite;
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* Stagger animations for lists */
.stagger-1 {
    animation-delay: 0.1s;
}

.stagger-2 {
    animation-delay: 0.2s;
}

.stagger-3 {
    animation-delay: 0.3s;
}

.stagger-4 {
    animation-delay: 0.4s;
}

.stagger-5 {
    animation-delay: 0.5s;
}

.stagger-6 {
    animation-delay: 0.6s;
}

/* ===== RESPONSIVE BREAKPOINTS ===== */

/* Extra Small Devices (phones, 320px to 575px) */
@media (max-width: 575px) {
    :root {
        font-size: 14px;
    }

    .container {
        padding: 0 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .sidebar {
        width: 100%;
        transform: translateX(-100%);
        z-index: 2000;
    }

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

    .content {
        margin-left: 0;
        padding: 1rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

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

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

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

    .footer-content {
        grid-template-columns: 1fr;
    }

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

    .code-input {
        height: 250px;
    }

    .output-content {
        height: 200px;
    }

    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .comparison-table {
        font-size: 0.85rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 0.5rem;
    }
}

/* Small Devices (tablets, 576px to 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .sidebar {
        width: 250px;
    }

    .content {
        margin-left: 0;
        padding: 1.5rem;
    }

    .card-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .hero h1 {
        font-size: 2.5rem;
    }

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

    .code-input {
        height: 300px;
    }
}

/* Medium Devices (tablets, 768px to 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .sidebar {
        width: 260px;
    }

    .content {
        margin-left: 260px;
        padding: 2rem;
    }

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

    .hero h1 {
        font-size: 3rem;
    }

    .comparison-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .charts-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Large Devices (desktops, 992px to 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .sidebar {
        width: 280px;
    }

    .content {
        margin-left: 280px;
        padding: 2.5rem;
    }

    .comparison-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .charts-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Extra Large Devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }

    .comparison-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .charts-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== MOBILE MENU TOGGLE ===== */

.menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 2001;
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

@media (max-width: 767px) {
    .menu-toggle {
        display: block;
    }

    .sidebar {
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    }
}

/* ===== ENHANCED HOVER EFFECTS ===== */

.card {
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.card:hover::before {
    left: 100%;
}

.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

/* ===== SCROLL ANIMATIONS ===== */

.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===== LOADING STATES ===== */

.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-panel) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: rotate 1s linear infinite;
}

/* ===== TOOLTIP ===== */

[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    padding: 0.5rem 1rem;
    background: var(--bg-panel);
    color: var(--text-main);
    border: 1px solid var(--border);
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 1000;
}

[data-tooltip]:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-5px);
}

/* ===== PROGRESS BAR ===== */

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-panel);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 1.5s infinite;
}

/* ===== BADGE ANIMATIONS ===== */

.badge {
    transition: all 0.3s ease;
}

.badge:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px var(--primary-glow);
}

/* ===== SMOOTH TRANSITIONS ===== */

* {
    transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
    transition-duration: var(--transition-speed);
    transition-timing-function: ease;
}

/* Disable transitions on theme change */
.theme-transition-disable * {
    transition: none !important;
}

/* ===== PRINT STYLES ===== */

@media print {

    .sidebar,
    .menu-toggle,
    .theme-switch,
    .btn {
        display: none;
    }

    .content {
        margin-left: 0;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        border: 1px solid #ccc;
        page-break-inside: avoid;
    }
}

/* ===== ACCESSIBILITY ===== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus,
a:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border: #ffffff;
        --text-muted: #cccccc;
    }
}

/* Dark mode preference */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-body: #030712;
        --bg-panel: #111827;
        --text-main: #f9fafb;
    }
}