/**
 * Animations & Transitions
 * Based on 2819church.org design
 */

/* ========================================
   FADE & OPACITY ANIMATIONS
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@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);
    }
}

/* ========================================
   SCALE ANIMATIONS
   ======================================== */

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

@keyframes scaleUp {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

/* ========================================
   TEXT ANIMATIONS
   ======================================== */

@keyframes slideInWord {
    0% {
        opacity: 0;
        transform: translateX(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes typewriter {
    0% {
        width: 0;
    }
    100% {
        width: 100%;
    }
}

.text-stagger {
    display: inline-block;
}

/* ========================================
   ANIMATION UTILITIES
   ======================================== */

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

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

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

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

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

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

/* Stagger animations */
.animate-stagger > * {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-stagger > *:nth-child(1) { animation-delay: 0.1s; }
.animate-stagger > *:nth-child(2) { animation-delay: 0.2s; }
.animate-stagger > *:nth-child(3) { animation-delay: 0.3s; }
.animate-stagger > *:nth-child(4) { animation-delay: 0.4s; }
.animate-stagger > *:nth-child(5) { animation-delay: 0.5s; }
.animate-stagger > *:nth-child(n+6) { animation-delay: 0.6s; }

/* ========================================
   SCROLL-TRIGGERED ANIMATIONS
   ======================================== */

.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-animate.in-view {
    opacity: 1;
    transform: translateY(0);
}

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

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

html[data-theme="dark"] .hover-lift:hover {
    box-shadow: 0 10px 40px rgba(255, 255, 255, 0.1);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-brightness {
    transition: opacity 0.3s ease;
}

.hover-brightness:hover {
    opacity: 0.8;
}

/* ========================================
   LOADING ANIMATIONS
   ======================================== */

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid;
    border-color: var(--border-color) var(--border-color) var(--accent-color) var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ========================================
   PULSE ANIMATION
   ======================================== */

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ========================================
   SHIMMER EFFECT
   ======================================== */

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

.shimmer {
    animation: shimmer 2s infinite;
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-primary) 50%, var(--bg-secondary) 75%);
    background-size: 1000px 100%;
}

/* ========================================
   PARALLAX SCROLL
   ======================================== */

.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* ========================================
   SECTION TRANSITIONS
   ======================================== */

.section-transition {
    position: relative;
    overflow: hidden;
}

.section-transition::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--accent-color);
    z-index: -1;
    transition: left 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

.section-transition:hover::before {
    left: 100%;
}

/* ========================================
   SMOOTHSCROLL
   ======================================== */

html {
    scroll-behavior: smooth;
}

/* ========================================
   MEDIA QUERIES FOR ANIMATIONS
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

@media (max-width: 768px) {
    .hover-lift:hover {
        transform: translateY(-4px);
    }

    .hover-scale:hover {
        transform: scale(1.02);
    }

    /* Reduce animation delays on mobile */
    .animate-stagger > *:nth-child(1) { animation-delay: 0.05s; }
    .animate-stagger > *:nth-child(2) { animation-delay: 0.1s; }
    .animate-stagger > *:nth-child(3) { animation-delay: 0.15s; }
    .animate-stagger > *:nth-child(4) { animation-delay: 0.2s; }
    .animate-stagger > *:nth-child(5) { animation-delay: 0.25s; }
    .animate-stagger > *:nth-child(n+6) { animation-delay: 0.3s; }
}