/**
 * Alpha professional motion layer
 * Soft, intentional animations — presence & hierarchy, not noise.
 */
:root {
    --alpa-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --alpa-dur: 0.7s;
    --alpa-dur-fast: 0.32s;
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .eb-hero img,
    .eb-hero .eb-badge,
    .eb-hero .eb-since,
    .eb-hero .eb-hero-title,
    .eb-hero .eb-hero-copy,
    .eb-hero .eb-hero-cta,
    .eb-hero .eb-hero-trust,
    .eb-hero .eb-hero-side-card,
    .eb-hero .eb-ambient,
    .eb-stats-wrap,
    .eb-faq-item p,
    .eb-section-kicker::after,
    .site-header,
    .alpa-footer-cta,
    .eb-trust-chip {
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
    }
    .reveal,
    .reveal-stagger > *,
    .reveal-left,
    .reveal-right,
    .reveal-scale,
    [data-aos] {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
        transition: none !important;
    }
}

html { scroll-behavior: smooth; }

/* ---------- Keyframes ---------- */
@keyframes alpa-header-in {
    from { opacity: 0; transform: translateY(-12px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes eb-rise {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes eb-rise-soft {
    from { opacity: 0; transform: translateY(14px); filter: blur(3px); }
    to { opacity: 1; transform: translateY(0); filter: blur(0); }
}
@keyframes eb-ken {
    from { transform: scale(1.03); }
    to { transform: scale(1.09); }
}
@keyframes eb-stats-float {
    from { opacity: 0; transform: translateY(32px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes eb-stat-pop {
    0% { transform: scale(0.88); opacity: 0.35; }
    65% { transform: scale(1.04); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes eb-glow-drift {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.45; }
    50% { transform: translate(18px, -12px) scale(1.08); opacity: 0.7; }
}
@keyframes eb-line-draw {
    from { transform: scaleX(0); opacity: 0; }
    to { transform: scaleX(1); opacity: 1; }
}
@keyframes eb-sheen {
    from { transform: translateX(-120%) skewX(-16deg); }
    to { transform: translateX(220%) skewX(-16deg); }
}
@keyframes eb-chip-in {
    from { opacity: 0; transform: translateY(10px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes eb-side-row {
    from { opacity: 0; transform: translateX(12px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes eb-footer-in {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Header ---------- */
.site-header {
    animation: alpa-header-in 0.55s var(--alpa-ease) both;
    transition: box-shadow var(--alpa-dur-fast) var(--alpa-ease), background 0.25s ease;
}
.site-header.is-scrolled {
    box-shadow: 0 14px 36px -26px rgba(15, 23, 42, 0.5) !important;
}
.site-header .nav-link {
    position: relative;
    transition: color var(--alpa-dur-fast) ease;
}
@media (min-width: 992px) {
    .site-header .navbar-nav > .nav-item > .nav-link::after {
        content: '';
        position: absolute;
        left: 0.65rem;
        right: 0.65rem;
        bottom: 0.15rem;
        height: 2px;
        border-radius: 999px;
        background: #08455c;
        transform: scaleX(0);
        transform-origin: left center;
        transition: transform 0.28s var(--alpa-ease);
    }
    .site-header .navbar-nav > .nav-item > .nav-link:hover::after,
    .site-header .navbar-nav > .nav-item > .nav-link.active::after {
        transform: scaleX(1);
    }
}

/* ---------- Hero ---------- */
.eb-hero {
    position: relative;
    isolation: isolate;
}
.eb-hero .eb-ambient {
    pointer-events: none;
    position: absolute;
    inset: auto;
    z-index: 1;
    width: min(42vw, 380px);
    height: min(42vw, 380px);
    border-radius: 50%;
    filter: blur(48px);
    animation: eb-glow-drift 10s ease-in-out infinite;
}
.eb-hero .eb-ambient-a {
    left: -6%;
    top: 18%;
    background: rgba(255, 176, 112, 0.28);
}
.eb-hero .eb-ambient-b {
    right: -4%;
    bottom: 8%;
    background: rgba(255, 255, 255, 0.18);
    animation-delay: -4s;
}
.eb-hero .eb-hero-overlay {
    animation: eb-rise-soft 0.95s var(--alpa-ease) both;
}
.eb-hero img {
    animation: eb-ken 14s ease-out both;
    transform-origin: 50% 40%;
    will-change: transform;
}
.eb-hero .eb-badge,
.eb-hero .eb-since,
.eb-hero .eb-hero-title,
.eb-hero .eb-hero-copy,
.eb-hero .eb-hero-cta,
.eb-hero .eb-hero-trust,
.eb-hero .eb-hero-side-card {
    opacity: 0;
    animation: eb-rise-soft 0.75s var(--alpa-ease) forwards;
}
.eb-hero .eb-badge { animation-delay: 0.06s; }
.eb-hero .eb-since { animation-delay: 0.1s; }
.eb-hero .eb-hero-title { animation-delay: 0.16s; }
.eb-hero .eb-hero-copy { animation-delay: 0.28s; }
.eb-hero .eb-hero-cta { animation-delay: 0.4s; }
.eb-hero .eb-hero-trust { animation-delay: 0.52s; }
.eb-hero .eb-hero-side-card { animation-delay: 0.32s; }

.eb-hero .eb-trust-chip {
    opacity: 0;
    animation: eb-chip-in 0.55s var(--alpa-ease) forwards;
}
.eb-hero .eb-hero-trust .eb-trust-chip:nth-child(1) { animation-delay: 0.55s; }
.eb-hero .eb-hero-trust .eb-trust-chip:nth-child(2) { animation-delay: 0.63s; }
.eb-hero .eb-hero-trust .eb-trust-chip:nth-child(3) { animation-delay: 0.71s; }

.eb-hero-side-card li {
    opacity: 0;
    animation: eb-side-row 0.5s var(--alpa-ease) forwards;
}
.eb-hero-side-card li:nth-child(1) { animation-delay: 0.42s; }
.eb-hero-side-card li:nth-child(2) { animation-delay: 0.5s; }
.eb-hero-side-card li:nth-child(3) { animation-delay: 0.58s; }
.eb-hero-side-card li:nth-child(4) { animation-delay: 0.66s; }
.eb-hero-side-card li:nth-child(5) { animation-delay: 0.74s; }
.eb-hero-side-card a.group {
    transition: transform var(--alpa-dur-fast) var(--alpa-ease), border-color 0.2s ease, background 0.2s ease;
}
.eb-hero-side-card a.group:hover {
    transform: translateX(4px);
}

/* ---------- Stats ---------- */
.eb-stats-wrap {
    opacity: 0;
    animation: eb-stats-float 0.8s var(--alpa-ease) 0.48s forwards;
}
.eb-stats-wrap .mx-auto {
    transition: box-shadow 0.35s var(--alpa-ease), transform 0.35s var(--alpa-ease);
}
.eb-stats-wrap.is-visible .mx-auto {
    box-shadow: 0 22px 55px -28px rgba(8, 69, 92, 0.42);
}
.eb-stats-wrap.is-visible .eb-stat-item .font-heading {
    animation: eb-stat-pop 0.6s var(--alpa-ease) both;
}
.eb-stats-wrap.is-visible .eb-stat-item:nth-child(2) .font-heading { animation-delay: 0.08s; }
.eb-stats-wrap.is-visible .eb-stat-item:nth-child(3) .font-heading { animation-delay: 0.16s; }
.eb-stats-wrap.is-visible .eb-stat-item:nth-child(4) .font-heading { animation-delay: 0.24s; }

/* ---------- Scroll reveal ---------- */
.reveal,
.reveal-stagger > *,
.reveal-left,
.reveal-right,
.reveal-scale,
[data-aos] {
    opacity: 1;
    transform: none;
    filter: none;
}
html.ld-js [data-aos] {
    opacity: 0;
    transform: translateY(1rem);
    filter: blur(1.5px);
    transition:
        opacity var(--alpa-dur) var(--alpa-ease),
        transform var(--alpa-dur) var(--alpa-ease),
        filter 0.5s var(--alpa-ease);
}
html.ld-js [data-aos].aos-animate,
html.ld-js [data-aos].is-visible {
    opacity: 1;
    transform: none;
    filter: none;
}
html.ld-js .reveal {
    opacity: 0;
    transform: translateY(1.25rem);
    filter: blur(2px);
    transition:
        opacity var(--alpa-dur) var(--alpa-ease),
        transform var(--alpa-dur) var(--alpa-ease),
        filter 0.55s var(--alpa-ease);
}
html.ld-js .reveal-left {
    opacity: 0;
    transform: translateX(-1.4rem);
    filter: blur(2px);
    transition:
        opacity var(--alpa-dur) var(--alpa-ease),
        transform var(--alpa-dur) var(--alpa-ease),
        filter 0.55s var(--alpa-ease);
}
html.ld-js .reveal-right {
    opacity: 0;
    transform: translateX(1.4rem);
    filter: blur(2px);
    transition:
        opacity var(--alpa-dur) var(--alpa-ease),
        transform var(--alpa-dur) var(--alpa-ease),
        filter 0.55s var(--alpa-ease);
}
html.ld-js .reveal-scale {
    opacity: 0;
    transform: scale(0.96);
    filter: blur(2px);
    transition:
        opacity var(--alpa-dur) var(--alpa-ease),
        transform var(--alpa-dur) var(--alpa-ease),
        filter 0.55s var(--alpa-ease);
}
html.ld-js .reveal.is-visible,
html.ld-js .reveal-left.is-visible,
html.ld-js .reveal-right.is-visible,
html.ld-js .reveal-scale.is-visible {
    opacity: 1;
    transform: none;
    filter: none;
}
html.ld-js .reveal-stagger > * {
    opacity: 0;
    transform: translateY(1rem);
    filter: blur(1.5px);
    transition:
        opacity var(--alpa-dur) var(--alpa-ease),
        transform var(--alpa-dur) var(--alpa-ease),
        filter 0.5s var(--alpa-ease);
}
html.ld-js .reveal-stagger.is-visible > * {
    opacity: 1;
    transform: none;
    filter: none;
}
html.ld-js .reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.08s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.16s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.24s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.32s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.4s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(7) { transition-delay: 0.48s; }
html.ld-js .reveal-stagger.is-visible > *:nth-child(8) { transition-delay: 0.56s; }

/* ---------- Cards / buttons ---------- */
.eb-course-card,
.eb-why-card,
.eb-testimonial-card,
.eb-feature-mini,
.alpa-blog-teaser-card,
.hi-course-card.alpa-course-pro,
.eb-faq-item,
.eb-enquiry,
.eb-map-card {
    transition:
        transform var(--alpa-dur-fast) var(--alpa-ease),
        box-shadow var(--alpa-dur-fast) var(--alpa-ease),
        border-color var(--alpa-dur-fast) ease;
}
.eb-course-card:hover,
.eb-why-card:hover,
.eb-feature-mini:hover,
.alpa-blog-teaser-card:hover,
.hi-course-card.alpa-course-pro:hover,
.eb-testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px -28px rgba(8, 69, 92, 0.38) !important;
}
.eb-course-card img,
.hi-course-card.alpa-course-pro img {
    transition: transform 0.65s var(--alpa-ease);
}
.eb-course-card:hover img,
.hi-course-card.alpa-course-pro:hover img {
    transform: scale(1.06);
}

.eb-btn-primary,
.eb-btn-secondary,
.eb-btn-outline,
.eb-nav-cta,
.btn.btn-primary,
.eb-footer-btn-light,
.eb-footer-btn-ghost {
    position: relative;
    overflow: hidden;
    transition:
        transform var(--alpa-dur-fast) var(--alpa-ease),
        filter var(--alpa-dur-fast) ease,
        box-shadow var(--alpa-dur-fast) ease,
        background var(--alpa-dur-fast) ease,
        border-color var(--alpa-dur-fast) ease;
}
.eb-btn-primary::before,
.eb-nav-cta::before,
.btn.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, transparent 35%, rgba(255,255,255,0.28) 50%, transparent 65%);
    transform: translateX(-120%) skewX(-16deg);
    pointer-events: none;
}
.eb-btn-primary:hover::before,
.eb-nav-cta:hover::before,
.btn.btn-primary:hover::before {
    animation: eb-sheen 0.7s var(--alpa-ease);
}
.eb-btn-primary:hover,
.eb-nav-cta:hover,
.btn.btn-primary:hover,
.eb-footer-btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 32px -16px rgba(8, 69, 92, 0.55);
}
.eb-btn-primary:active,
.eb-btn-secondary:active,
.eb-btn-outline:active {
    transform: translateY(0) scale(0.98);
}

.eb-why-icon {
    transition: transform var(--alpa-dur-fast) var(--alpa-ease), background var(--alpa-dur-fast) ease, box-shadow var(--alpa-dur-fast) ease;
}
.eb-why-card:hover .eb-why-icon {
    transform: translateY(-3px) scale(1.06);
    background: rgba(8, 69, 92, 0.16);
    box-shadow: 0 10px 22px -14px rgba(8, 69, 92, 0.45);
}

/* ---------- FAQ / sections ---------- */
.eb-faq-item {
    transition: border-color var(--alpa-dur-fast) ease, box-shadow var(--alpa-dur-fast) ease, transform var(--alpa-dur-fast) var(--alpa-ease);
}
.eb-faq-item:hover {
    transform: translateY(-2px);
}
.eb-faq-item[open] {
    border-color: rgba(8, 69, 92, 0.28);
    box-shadow: 0 14px 34px -28px rgba(8, 69, 92, 0.35);
}
.eb-faq-item p {
    animation: eb-rise 0.35s var(--alpa-ease) both;
}

.eb-section-kicker {
    position: relative;
}
.eb-section-kicker::after {
    content: '';
    display: block;
    width: 2.4rem;
    height: 2px;
    margin: 0.55rem auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--premium-accent, #e07a2f), transparent);
    transform: scaleX(0);
    transform-origin: center;
}
.reveal.is-visible .eb-section-kicker::after,
.reveal-left.is-visible .eb-section-kicker::after,
.reveal-right.is-visible .eb-section-kicker::after,
.eb-section .reveal.is-visible .eb-section-kicker::after {
    animation: eb-line-draw 0.55s var(--alpa-ease) 0.12s forwards;
}
.text-left .eb-section-kicker::after,
.eb-enquiry .eb-section-kicker::after,
.eb-map-card .eb-section-kicker::after {
    margin-left: 0;
    transform-origin: left center;
}

/* Footer CTA entrance */
.alpa-footer-cta > .mx-auto > div {
    animation: eb-footer-in 0.7s var(--alpa-ease) both;
}

/* Soft page fade for main */
#main-content {
    animation: eb-rise-soft 0.45s var(--alpa-ease) both;
}