/* A.O.W Music Academy — site styles */

:root {
    --ink: #0c0b0a;
    --brass: #c4a35a;
}

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
}

/* Header scroll state */
.site-header {
    background: transparent;
}

.site-header.is-scrolled {
    background: rgba(12, 11, 10, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(247, 244, 239, 0.08);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 100%;
    height: 1px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.nav-link:hover::after,
.nav-link.text-brass-400::after {
    transform: scaleX(1);
}

/* Mobile menu icon */
#menu-toggle[aria-expanded="true"] .menu-bar:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

#menu-toggle[aria-expanded="true"] .menu-bar:nth-child(2) {
    opacity: 0;
}

#menu-toggle[aria-expanded="true"] .menu-bar:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
}

/* Hero atmosphere */
.hero-wash {
    background:
        linear-gradient(105deg, rgba(12, 11, 10, 0.92) 0%, rgba(12, 11, 10, 0.55) 45%, rgba(12, 11, 10, 0.35) 100%),
        var(--hero-image) center / cover no-repeat;
}

.section-texture {
    background-image:
        radial-gradient(ellipse 80% 50% at 10% 0%, rgba(196, 163, 90, 0.06), transparent 50%),
        radial-gradient(ellipse 60% 40% at 90% 100%, rgba(196, 163, 90, 0.04), transparent 45%);
}

/* Reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* Soft image ken burns */
.ken-burns {
    animation: kenBurns 22s ease-in-out infinite alternate;
}

@keyframes kenBurns {
    from { transform: scale(1); }
    to { transform: scale(1.08); }
}

/* Lesson image hover */
.lesson-visual {
    overflow: hidden;
}

.lesson-visual img {
    transition: transform 0.8s ease;
}

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

/* Gallery */
.gallery-item {
    overflow: hidden;
    position: relative;
}

.gallery-item img {
    transition: transform 0.7s ease, filter 0.7s ease;
}

.gallery-item:hover img {
    transform: scale(1.06);
}

.gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(12, 11, 10, 0.55), transparent 50%);
    opacity: 0.7;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.gallery-item:hover::after {
    opacity: 0.4;
}

/* Social */
.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid rgba(247, 244, 239, 0.15);
    color: rgba(247, 244, 239, 0.7);
    transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.social-link:hover {
    color: var(--ink);
    background: var(--brass);
    border-color: var(--brass);
}

/* WhatsApp float */
.whatsapp-float {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 9999px;
    background: #25d366;
    color: #fff;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.whatsapp-float:hover {
    transform: scale(1.06);
    box-shadow: 0 10px 32px rgba(37, 211, 102, 0.35);
}

@media (min-width: 640px) {
    .whatsapp-float {
        right: 1.75rem;
        bottom: 1.75rem;
        width: 3.75rem;
        height: 3.75rem;
    }
}

/* Form */
.form-field {
    width: 100%;
    background: rgba(247, 244, 239, 0.04);
    border: 1px solid rgba(247, 244, 239, 0.12);
    color: #f7f4ef;
    padding: 0.875rem 1rem;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.form-field:focus {
    outline: none;
    border-color: rgba(196, 163, 90, 0.6);
    background: rgba(247, 244, 239, 0.06);
}

.form-field::placeholder {
    color: rgba(201, 187, 163, 0.45);
}

/* Divider line */
.rule {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(196, 163, 90, 0.35), transparent);
}

/* Looping text rotator */
.text-rotator {
    position: relative;
    display: block;
    min-height: 1.4em;
    overflow: hidden;
}

.text-rotator__item {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    opacity: 0;
    transform: translateY(0.55em);
    transition: opacity 0.55s ease, transform 0.55s ease;
    pointer-events: none;
}

.text-rotator__item.is-active {
    opacity: 1;
    transform: translateY(0);
    position: relative;
    pointer-events: auto;
}

.text-rotator__item.is-leaving {
    opacity: 0;
    transform: translateY(-0.45em);
    position: absolute;
}