/* ============================================
   MVR Digital — animations.css
   Keyframes + reveal classes + effects
   ============================================ */

/* ---- KEYFRAMES ---- */

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 6px var(--cyan), 0 0 12px var(--cyan-glow); }
    50%       { box-shadow: 0 0 12px var(--cyan), 0 0 24px var(--cyan-glow); }
}

@keyframes scrollLine {
    0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
    50%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
    51%  { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

@keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

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

@keyframes glowPulse {
    0%, 100% { opacity: 0.3; }
    50%       { opacity: 0.7; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-12px); }
}

@keyframes borderGlow {
    0%, 100% { box-shadow: 0 0 0px rgba(0,245,255,0); }
    50%       { box-shadow: 0 0 20px rgba(0,245,255,0.3), inset 0 0 20px rgba(0,245,255,0.05); }
}

/* ---- HERO STATS — animacja przy ładowaniu (bez IntersectionObserver) ---- */

.hero-stats--anim {
    opacity: 0;
    transform: translateY(18px);
    animation: fadeUp 0.45s var(--ease-out, ease) forwards;
    animation-delay: var(--delay, 0.8s);
}

@media (prefers-reduced-motion: reduce) {
    .hero-stats--anim { animation: none; opacity: 1; transform: none; }
}

/* ---- REVEAL ON SCROLL ---- */

.reveal,
.reveal-fast {
    opacity: 0;
    transform: translateY(32px);
    will-change: transform, opacity;
    transition:
        opacity 0.55s var(--ease-out),
        transform 0.55s var(--ease-out);
    transition-delay: var(--delay, 0s);
}

.reveal-fast {
    transition-duration: 0.38s;
}

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

/* ---- REVEAL VARIANTS ---- */

/* Wjazd z lewej */
.reveal-left {
    opacity: 0;
    transform: translateX(-36px);
    will-change: transform, opacity;
    transition:
        opacity 0.6s var(--ease-out),
        transform 0.6s var(--ease-out);
    transition-delay: var(--delay, 0s);
}
.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Wjazd z prawej */
.reveal-right {
    opacity: 0;
    transform: translateX(36px);
    will-change: transform, opacity;
    transition:
        opacity 0.6s var(--ease-out),
        transform 0.6s var(--ease-out);
    transition-delay: var(--delay, 0s);
}
.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Skalowanie z góry — dla kart, statystyk */
.reveal-scale {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
    will-change: transform, opacity;
    transition:
        opacity 0.5s var(--ease-out),
        transform 0.5s var(--ease-out);
    transition-delay: var(--delay, 0s);
}
.reveal-scale.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Mobile — override: brak delay, szybsze (nadpisuje poprzedni blok) */
@media (max-width: 768px) {
    .reveal-left,
    .reveal-right,
    .reveal-scale {
        transition-duration: 0.3s !important;
        transition-delay: 0s !important;
    }
}

/* ---- HERO GLOW BACKGROUND ---- */

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle,
        rgba(0, 245, 255, 0.06) 0%,
        rgba(123, 47, 255, 0.04) 40%,
        transparent 70%
    );
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
    border-radius: 50%;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 200px;
    background: linear-gradient(to top, var(--bg-2), transparent);
    pointer-events: none;
    z-index: 1;
}

/* ---- MAGNETIC BUTTON BASE ---- */

.magnetic-btn {
    transition:
        transform 0.3s var(--ease),
        box-shadow 0.3s;
    will-change: transform;
}

/* ---- CARD HOVER GLOW ---- */

.service-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(135deg, transparent 30%, rgba(0,245,255,0.08), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
    z-index: 0;
}

.service-card:hover::before { opacity: 1; }

/* ---- PORTFOLIO CARD OVERLAY ---- */

.portfolio-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        transparent 50%,
        rgba(0, 245, 255, 0.04) 100%
    );
    opacity: 0;
    transition: opacity 0.35s;
    pointer-events: none;
    border-radius: inherit;
}
.portfolio-card:hover::after { opacity: 1; }

/* ---- NAVBAR SCROLL ANIMATION ---- */

.navbar {
    transition:
        background 0.4s,
        backdrop-filter 0.4s,
        padding 0.4s var(--ease),
        border-color 0.4s;
}

/* ---- SCRAMBLE TEXT ---- */

.scramble-char { display: inline-block; }

/* ---- CONTACT FORM FOCUS GLOW ---- */

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    animation: borderGlow 2s ease-in-out infinite;
}

/* ---- STAT COUNTER ANIMATE ---- */

.stat-number {
    transition: color 0.3s;
}

/* ---- FEATURE ITEMS ---- */

.feature-item {
    transition: padding-left 0.3s var(--ease);
}
.feature-item:hover {
    padding-left: 0.5rem;
}
.feature-item:hover .feature-num {
    opacity: 1;
}
.feature-num {
    transition: opacity 0.3s;
}

/* ---- CONTACT ITEMS ---- */
.contact-item {
    transition: transform 0.25s var(--ease), color 0.25s;
}
.contact-item:hover { transform: translateX(4px); }

/* ---- FOOTER FADE IN ---- */
.footer {
    animation: fadeIn 0.5s var(--ease) forwards;
}

/* ---- PAGE LOAD OVERLAY ---- */
.page-loader {
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 99999;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}
.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.loader-logo {
    font-family: var(--font-head); font-size: 1.5rem; font-weight: 700;
    letter-spacing: -0.02em;
}
.loader-logo .logo-mvr { color: var(--white); }
.loader-logo .logo-digital { color: var(--cyan); }
.loader-bar {
    position: absolute;
    bottom: 0; left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), var(--purple));
    animation: loaderBar 0.8s var(--ease-out) forwards;
}
@keyframes loaderBar {
    from { width: 0; }
    to   { width: 100%; }
}

/* ---- PAGE TRANSITION OVERLAY ---- */

#page-transition-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg);
    z-index: 9997;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.26s var(--ease-out);
}
#page-transition-overlay.visible {
    opacity: 1;
    pointer-events: all;
}


/* ---- SHAKE ANIMATION (form validation) ---- */

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    15%       { transform: translateX(-6px); }
    30%       { transform: translateX(6px); }
    45%       { transform: translateX(-5px); }
    60%       { transform: translateX(5px); }
    75%       { transform: translateX(-3px); }
    90%       { transform: translateX(3px); }
}

.shake {
    animation: shake 0.4s var(--ease) forwards;
}

.field-error {
    display: block;
    font-size: 0.75rem;
    color: #FF6B6B;
    margin-top: 0.3rem;
    min-height: 1rem;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 0.2s, transform 0.2s;
}
.field-error.visible {
    opacity: 1;
    transform: translateY(0);
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
    border-color: #FF6B6B !important;
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1) !important;
}

/* ---- MOBILE: szybszy reveal, bez kumulujących się delay ---- */

@media (max-width: 768px) {
    .reveal,
    .reveal-fast {
        transition-duration: 0.25s !important;
        transition-delay: 0s !important;
    }
}

/* ---- PREFERS-REDUCED-MOTION ---- */

@media (prefers-reduced-motion: reduce) {
    /* Reveal elements: pokaż od razu */
    .reveal,
    .reveal-fast {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }

    /* Wyłącz wszystkie animacje CSS */
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.1ms !important;
        scroll-behavior: auto !important;
    }

    /* Zachowaj minimalne przejścia UI */
    .navbar,
    .btn-primary,
    .btn-ghost,
    .btn-nav,
    .card-btn,
    .btn-submit,
    .nav-link,
    .service-card,
    .portfolio-card,
    .contact-item,
    .form-group input,
    .form-group select,
    .form-group textarea {
        transition-duration: 0.1ms !important;
    }

    /* Zatrzymaj marquee */
    .marquee-content { animation: none !important; }
    .scroll-line     { animation: none !important; opacity: 0.4; }
    .tag-dot         { animation: none !important; }
    .page-loader     { display: none !important; }

    /* Page transition overlay — wyłącz */
    #page-transition-overlay { transition: none !important; }
}