/**
 * Animations
 * Keyframe definitions and animation utility classes
 * 
 * @package OGULCAN_Theme
 * @requirements 9.1, 9.3
 */

/* ==========================================================================
   Keyframe Definitions
   ========================================================================== */

/* Fade In - Simple opacity transition */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Fade Up - Opacity + upward movement */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade Down - Opacity + downward movement */
@keyframes fadeDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Fade Left - Opacity + leftward movement */
@keyframes fadeLeft {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Fade Right - Opacity + rightward movement */
@keyframes fadeRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale In - Opacity + scale from smaller */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scale Up - Scale from zero */
@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Slide Up */
@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Slide Down */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Pulse - Subtle attention grabber */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Float - Gentle floating effect */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Spin - Rotation */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   Hidden State (Before Animation)
   ========================================================================== */

.animate-hidden {
    opacity: 0;
    visibility: hidden;
}

/* ==========================================================================
   Animation Utility Classes
   Applied by JavaScript when element enters viewport
   ========================================================================== */

.animate-fade-in {
    animation: fadeIn var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-up {
    animation: fadeUp var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-down {
    animation: fadeDown var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-left {
    animation: fadeLeft var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-right {
    animation: fadeRight var(--transition-slow) var(--ease-out) forwards;
}

.animate-scale-in {
    animation: scaleIn var(--transition-slow) var(--ease-out) forwards;
}

.animate-scale-up {
    animation: scaleUp var(--transition-normal) var(--ease-bounce) forwards;
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) var(--ease-out) forwards;
}

.animate-slide-down {
    animation: slideDown var(--transition-slow) var(--ease-out) forwards;
}

.animate-pulse {
    animation: pulse 2s var(--ease-in-out) infinite;
}

.animate-float {
    animation: float 3s var(--ease-in-out) infinite;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ==========================================================================
   Animation Delays
   Use with data-delay attribute or directly
   ========================================================================== */

.animate-delay-100 {
    animation-delay: var(--delay-100);
}

.animate-delay-200 {
    animation-delay: var(--delay-200);
}

.animate-delay-300 {
    animation-delay: var(--delay-300);
}

.animate-delay-400 {
    animation-delay: var(--delay-400);
}

.animate-delay-500 {
    animation-delay: var(--delay-500);
}

/* Custom delays via data attribute */
[data-delay="100"] {
    animation-delay: 100ms;
}

[data-delay="200"] {
    animation-delay: 200ms;
}

[data-delay="300"] {
    animation-delay: 300ms;
}

[data-delay="400"] {
    animation-delay: 400ms;
}

[data-delay="500"] {
    animation-delay: 500ms;
}

[data-delay="600"] {
    animation-delay: 600ms;
}

[data-delay="700"] {
    animation-delay: 700ms;
}

[data-delay="800"] {
    animation-delay: 800ms;
}

[data-delay="1000"] {
    animation-delay: 1000ms;
}

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

.hover-lift {
    transition: transform var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-4px);
}

.hover-scale {
    transition: transform var(--transition-normal);
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-glow {
    transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Reduced Motion
   Respect user preferences for reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .animate-hidden {
        opacity: 1;
        visibility: visible;
    }
    
    .animate-pulse,
    .animate-float,
    .animate-spin {
        animation: none;
    }
}

/* ==========================================================================
   Page Transition
   ========================================================================== */

.page-transition-enter {
    opacity: 0;
}

.page-transition-enter-active {
    opacity: 1;
    transition: opacity var(--transition-slow);
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
    transition: opacity var(--transition-slow);
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.loading {
    position: relative;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-gray-300);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Skeleton loading */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 25%,
        var(--color-gray-100) 50%,
        var(--color-gray-200) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}


/* ==========================================================================
   Geometric Shapes - Decorative Elements
   Reusable decorative shapes for visual depth and premium feel
   
   @requirements 13.1, 13.6
   ========================================================================== */

/* Container for geometric shapes */
.geometric-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

/* Base shape class */
.geo-shape {
    position: absolute;
    opacity: 0.15;
    transition: transform var(--transition-slower);
    will-change: transform;
}

/* ==========================================================================
   Circle Shapes
   ========================================================================== */

.geo-shape--circle {
    border-radius: 50%;
}

/* Large circle - gradient radial */
.geo-shape--circle-lg {
    width: 300px;
    height: 300px;
    background: radial-gradient(
        circle,
        var(--color-secondary) 0%,
        transparent 70%
    );
}

/* Medium circle - solid */
.geo-shape--circle-md {
    width: 150px;
    height: 150px;
    background: var(--color-secondary);
}

/* Small circle - white accent */
.geo-shape--circle-sm {
    width: 80px;
    height: 80px;
    background: var(--color-white);
}

/* Extra small circle - dot */
.geo-shape--circle-xs {
    width: 40px;
    height: 40px;
    background: var(--color-secondary);
    opacity: 0.2;
}

/* ==========================================================================
   Rectangle Shapes
   ========================================================================== */

.geo-shape--rect {
    border-radius: var(--radius-lg);
}

/* Large rectangle - gradient */
.geo-shape--rect-lg {
    width: 200px;
    height: 200px;
    background: linear-gradient(
        135deg,
        var(--color-primary-light) 0%,
        transparent 100%
    );
}

/* Medium rectangle - glassmorphism */
.geo-shape--rect-md {
    width: 120px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Small rectangle */
.geo-shape--rect-sm {
    width: 80px;
    height: 60px;
    background: rgba(255, 109, 0, 0.15);
}

/* ==========================================================================
   Triangle Shapes
   ========================================================================== */

.geo-shape--triangle {
    width: 0;
    height: 0;
    border-left: 60px solid transparent;
    border-right: 60px solid transparent;
    border-bottom: 100px solid var(--color-secondary);
    opacity: 0.1;
    background: none;
}

.geo-shape--triangle-sm {
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
    border-bottom: 50px solid var(--color-secondary);
    opacity: 0.08;
}

.geo-shape--triangle-inverted {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-top: 80px solid var(--color-primary-light);
    opacity: 0.1;
    background: none;
}

/* ==========================================================================
   Floating Animations for Geometric Shapes
   ========================================================================== */

@keyframes float-slow {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

@keyframes float-medium {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(-3deg);
    }
}

@keyframes float-fast {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-10px) rotate(2deg);
    }
}

@keyframes drift-horizontal {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(15px);
    }
}

@keyframes rotate-slow {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Floating animation classes */
.geo-shape--float-slow {
    animation: float-slow 8s ease-in-out infinite;
}

.geo-shape--float-medium {
    animation: float-medium 6s ease-in-out infinite;
}

.geo-shape--float-fast {
    animation: float-fast 4s ease-in-out infinite;
}

.geo-shape--drift {
    animation: drift-horizontal 10s ease-in-out infinite;
}

.geo-shape--rotate {
    animation: rotate-slow 20s linear infinite;
}

/* ==========================================================================
   Parallax Support
   Elements with data-parallax attribute will be animated via JavaScript
   ========================================================================== */

.geo-shape[data-parallax] {
    will-change: transform;
    transition: transform 0.1s linear;
}

/* ==========================================================================
   Section-Specific Variants
   ========================================================================== */

/* Hero section shapes - more prominent */
.geometric-shapes--hero .geo-shape {
    opacity: 0.12;
}

.geometric-shapes--hero .geo-shape--circle-lg {
    width: 350px;
    height: 350px;
}

/* Portfolio section shapes - subtle */
.geometric-shapes--portfolio .geo-shape {
    opacity: 0.08;
}

/* Footer section shapes - gradient overlay compatible */
.geometric-shapes--footer .geo-shape {
    opacity: 0.1;
}

.geometric-shapes--footer .geo-shape--circle-lg {
    background: radial-gradient(
        circle,
        var(--color-white) 0%,
        transparent 70%
    );
}

/* ==========================================================================
   Glassmorphism Effects
   ========================================================================== */

.geo-shape--glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.geo-shape--glass-dark {
    background: rgba(26, 35, 126, 0.2);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(26, 35, 126, 0.1);
}

/* ==========================================================================
   Gradient Overlays
   ========================================================================== */

.gradient-overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.gradient-overlay--top {
    background: linear-gradient(
        to bottom,
        var(--color-primary) 0%,
        transparent 30%
    );
}

.gradient-overlay--bottom {
    background: linear-gradient(
        to top,
        var(--color-primary) 0%,
        transparent 30%
    );
}

.gradient-overlay--radial {
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        var(--color-primary) 100%
    );
}

/* ==========================================================================
   Reduced Motion - Geometric Shapes
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .geo-shape--float-slow,
    .geo-shape--float-medium,
    .geo-shape--float-fast,
    .geo-shape--drift,
    .geo-shape--rotate {
        animation: none;
    }
    
    .geo-shape[data-parallax] {
        transform: none !important;
    }
}