/* ============================================
   Chronos Brasil — Animations
   Keyframes, transitions, micro-interactions
   ============================================ */

/* ---- Entrance Animations ---- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* ---- Shimmer (Loading Skeleton) ---- */
@keyframes shimmer {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(100%);
    }
}

/* ---- Pulse ---- */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ---- Glow Pulse (for active elements) ---- */
@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 8px rgba(59, 130, 246, 0.2);
    }
    50% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
    }
}

/* ---- Moon Glow ---- */
@keyframes moonGlow {
    0%, 100% {
        filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.2));
    }
    50% {
        filter: drop-shadow(0 0 16px rgba(255, 255, 255, 0.4));
    }
}

/* ---- Countdown Flip ---- */
@keyframes flipDown {
    0% {
        transform: perspective(400px) rotateX(0);
    }
    100% {
        transform: perspective(400px) rotateX(-90deg);
    }
}

@keyframes flipUp {
    0% {
        transform: perspective(400px) rotateX(90deg);
    }
    100% {
        transform: perspective(400px) rotateX(0);
    }
}

/* ---- Progress Fill ---- */
@keyframes progressFill {
    from { width: 0; }
}

/* ---- Rotate (for loading spinner) ---- */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ---- Float (subtle float for hero elements) ---- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* ---- Slide Up Banner ---- */
@keyframes slideUpBanner {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ---- Staggered Entrance ---- */
.animate-in {
    animation: fadeInUp 0.6s var(--ease-out) both;
}

.animate-in--delay-1 { animation-delay: 100ms; }
.animate-in--delay-2 { animation-delay: 200ms; }
.animate-in--delay-3 { animation-delay: 300ms; }
.animate-in--delay-4 { animation-delay: 400ms; }
.animate-in--delay-5 { animation-delay: 500ms; }
.animate-in--delay-6 { animation-delay: 600ms; }
.animate-in--delay-7 { animation-delay: 700ms; }
.animate-in--delay-8 { animation-delay: 800ms; }

.animate-scale {
    animation: scaleIn 0.5s var(--ease-out) both;
}

.animate-slide-left {
    animation: slideInLeft 0.5s var(--ease-out) both;
}

.animate-slide-right {
    animation: slideInRight 0.5s var(--ease-out) both;
}

/* ---- Scroll-triggered Animations ---- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- Countdown Digit ---- */
.countdown-digit {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
}

.countdown-digit__value {
    font-family: var(--font-mono);
    font-variant-numeric: tabular-nums;
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    line-height: 1;
    color: var(--fg-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--sp-3) var(--sp-4);
    min-width: 72px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.countdown-digit__value::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: var(--border-color);
}

.countdown-digit__label {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--sp-2);
}

.countdown-separator {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--fg-faint);
    padding: 0 var(--sp-1);
    animation: pulse 1.5s infinite;
}

/* ---- Transition for digit changes ---- */
.countdown-digit__value.flip {
    animation: scaleIn 0.3s var(--ease-out);
}

/* ---- Hero Section ---- */
.hero {
    position: relative;
    padding: var(--sp-20) 0 var(--sp-16);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 50%, rgba(201, 164, 76, 0.04) 0%, transparent 50%);
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

.hero__title {
    font-size: var(--text-5xl);
    font-weight: var(--font-bold);
    letter-spacing: -0.03em;
    margin-bottom: var(--sp-4);
    line-height: 1.1;
}

.hero__subtitle {
    font-size: var(--text-xl);
    color: var(--fg-muted);
    max-width: 600px;
    line-height: var(--leading-relaxed);
    margin-bottom: var(--sp-10);
}

.hero__cards {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--sp-4);
}

/* ---- Season Timeline ---- */
.season-timeline {
    display: flex;
    gap: var(--sp-3);
    border-radius: var(--radius-xl);
    overflow: visible;
    height: auto;
    perspective: 1000px;
    padding: var(--sp-2) 0;
}

.season-timeline__segment {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: var(--sp-1);
    padding: var(--sp-4) var(--sp-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: #fff;
    position: relative;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1), inset 0 1px 1px rgba(255, 255, 255, 0.2);
    transition: all var(--duration-normal) var(--ease-spring);
    cursor: pointer;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transform-style: preserve-3d;
}

.season-timeline__segment:hover {
    flex: 1.2;
    transform: translateY(-8px) rotateX(10deg);
    box-shadow: 0 12px 20px rgba(0, 0, 0, 0.15), 0 0 15px var(--glow-color, rgba(255,255,255,0.2));
}

.season-timeline__segment--verao {
    background: linear-gradient(135deg, #FF5E36, #FFA036);
    --glow-color: rgba(255, 94, 54, 0.4);
}

.season-timeline__segment--outono {
    background: linear-gradient(135deg, #C68B59, #8B5A2B);
    --glow-color: rgba(198, 139, 89, 0.4);
}

.season-timeline__segment--inverno {
    background: linear-gradient(135deg, #3B82F6, #60A5FA);
    --glow-color: rgba(59, 130, 246, 0.4);
}

.season-timeline__segment--primavera {
    background: linear-gradient(135deg, #EC4899, #F472B6);
    --glow-color: rgba(236, 72, 153, 0.4);
}

.season-timeline__segment.current {
    flex: 1.4;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15), 0 0 25px var(--glow-color), inset 0 0 0 2px rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

/* Add a live indicator dot */
.season-timeline__segment.current::before {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: #FFF;
    border-radius: 50%;
    box-shadow: 0 0 8px #FFF;
    animation: pulseGlow 1.5s infinite alternate;
}

@keyframes pulseGlow {
    0% { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(1.3); opacity: 1; }
}

.season-timeline__label {
    font-size: var(--text-base);
    font-weight: var(--font-bold);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.season-timeline__dates {
    font-size: 10px;
    opacity: 0.9;
    font-weight: var(--font-medium);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

/* ---- 3D Season Chamber ---- */
.season-chamber {
    width: 200px;
    height: 200px;
    perspective: 1000px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
}

[data-theme="minimal"] .season-chamber {
    background: #F4F4F5;
}
[data-theme="techlight"] .season-chamber {
    background: #F4F6FB;
}
[data-theme="auralight"] .season-chamber {
    background: #F5F5FA;
}

/* 3D Sun (Verão) */
.sun-3d {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at 30% 30%, #FFE600 0%, #FF8000 50%, #FF3C00 100%);
    border-radius: 50%;
    box-shadow: 0 0 30px #FFA500, 0 0 60px #FF3C00, inset -5px -5px 15px rgba(0,0,0,0.4), inset 5px 5px 15px rgba(255,255,255,0.8);
    position: relative;
    transform-style: preserve-3d;
    animation: floatSun 4s ease-in-out infinite alternate;
}

.sun-ray-container {
    position: absolute;
    width: 130px;
    height: 130px;
    animation: rotateRays 25s linear infinite;
    opacity: 0.35;
}

.sun-ray {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 130px;
    background: linear-gradient(to bottom, transparent, #FFA500, transparent);
    transform: translate(-50%, -50%) rotate(calc(var(--r) * 30deg));
}

@keyframes floatSun {
    0% { transform: translateY(-5px) scale(1); }
    100% { transform: translateY(5px) scale(1.03); }
}

@keyframes rotateRays {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 3D Leaves (Outono) */
.leaf-container {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
}

.leaf-3d {
    position: absolute;
    width: 28px;
    height: 28px;
    color: var(--leaf-color, #D4A574);
    animation: leafFall3D var(--d) linear infinite;
    animation-delay: var(--delay);
    opacity: 0;
    top: -30px;
    left: var(--x);
}

@keyframes leafFall3D {
    0% {
        transform: translateY(0) rotateX(0deg) rotateY(0deg) rotateZ(0deg) translateZ(-100px);
        opacity: 0;
    }
    15% { opacity: 1; }
    85% { opacity: 1; }
    100% {
        transform: translateY(240px) rotateX(360deg) rotateY(180deg) rotateZ(720deg) translateZ(100px);
        opacity: 0;
    }
}

/* 3D Snowflakes (Inverno) */
.snow-container {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
}

.snow-3d {
    position: absolute;
    color: #A5F3FC;
    opacity: 0;
    animation: snowFall3D var(--d) linear infinite;
    animation-delay: var(--delay);
    top: -20px;
    left: var(--x);
    font-size: var(--sz);
    filter: drop-shadow(0 0 4px rgba(165, 243, 252, 0.6));
}

@keyframes snowFall3D {
    0% {
        transform: translateY(0) rotate3d(1, 1, 1, 0deg) translateZ(var(--z-start));
        opacity: 0;
    }
    10% { opacity: 0.8; }
    90% { opacity: 0.8; }
    100% {
        transform: translateY(230px) rotate3d(1, 1, 1, 360deg) translateZ(var(--z-end));
        opacity: 0;
    }
}

/* 3D Butterfly (Primavera) */
.spring-container {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transform-style: preserve-3d;
}

.butterfly-3d {
    width: 50px;
    height: 40px;
    position: relative;
    transform-style: preserve-3d;
    animation: hoverButterfly 6s ease-in-out infinite alternate;
}

.butterfly-body {
    position: absolute;
    width: 4px;
    height: 30px;
    background: #475569;
    border-radius: var(--radius-full);
    left: 23px;
    top: 5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.butterfly-wing {
    position: absolute;
    width: 24px;
    height: 38px;
    top: 1px;
    background: linear-gradient(135deg, #EC4899, #F472B6, #8B5CF6);
    border-radius: 50% 50% 20% 50% / 40% 40% 40% 60%;
    box-shadow: 0 4px 10px rgba(236, 72, 153, 0.4);
}

.butterfly-wing--left {
    right: 27px;
    transform-origin: right center;
    animation: flapLeft 0.15s ease-in-out infinite alternate;
}

.butterfly-wing--right {
    left: 27px;
    transform-origin: left center;
    border-radius: 50% 50% 50% 20% / 40% 40% 60% 40%;
    animation: flapRight 0.15s ease-in-out infinite alternate;
}

.spring-petal {
    position: absolute;
    width: 14px;
    height: 10px;
    background: #F472B6;
    border-radius: 50% 0 50% 50%;
    opacity: 0;
    animation: petalFloat var(--d) ease-in-out infinite;
    animation-delay: var(--delay);
    top: -20px;
    left: var(--x);
}

@keyframes flapLeft {
    0% { transform: rotateY(0deg); }
    100% { transform: rotateY(70deg); }
}

@keyframes flapRight {
    0% { transform: rotateY(0deg); }
    100% { transform: rotateY(-70deg); }
}

@keyframes hoverButterfly {
    0% { transform: translate3d(-10px, -5px, 0) rotateZ(-5deg) rotateY(10deg); }
    100% { transform: translate3d(10px, 15px, 50px) rotateZ(5deg) rotateY(-10deg); }
}

@keyframes petalFloat {
    0% {
        transform: translateY(0) rotateX(0deg) rotateZ(0deg);
        opacity: 0;
    }
    10% { opacity: 0.8; }
    90% { opacity: 0.8; }
    100% {
        transform: translateY(230px) rotateX(360deg) rotateZ(180deg) translateX(40px);
        opacity: 0;
    }
}

/* ---- Moon Phase Display ---- */
.moon-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-4);
}

.moon-display__icon {
    font-size: 80px;
    animation: moonGlow 4s ease-in-out infinite;
}

.moon-display__name {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--fg-primary);
}

.moon-display__date {
    font-size: var(--text-sm);
    color: var(--fg-muted);
    font-family: var(--font-mono);
}

/* ---- Next Moon Phases ---- */
.moon-phases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--sp-4);
}

.moon-phase-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-4);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--duration-fast) var(--ease-out);
}

.moon-phase-card:hover {
    border-color: var(--badge-lunar);
    box-shadow: 0 0 15px rgba(167, 139, 250, 0.1);
}

.moon-phase-card__icon {
    font-size: 36px;
}

.moon-phase-card__name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--fg-primary);
}

.moon-phase-card__date {
    font-size: var(--text-xs);
    color: var(--fg-muted);
    font-family: var(--font-mono);
}