/* =====================================================================
   Landing Page Styles — PaTaS Design System
   ===================================================================== */

/* ---- Reset for landing ---- */
.landing-page { background: var(--bg); color: var(--text); font-family: var(--font); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
.landing-page * { box-sizing: border-box; }

/* ---- Scroll reveal utility ---- */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity .7s var(--ease), transform .7s var(--ease); will-change: opacity, transform; }
.reveal.revealed { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }

/* ---- Animated background ---- */
.landing-bg {
    position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.landing-bg-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: .3;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
    animation: gridDrift 40s linear infinite;
}
@keyframes gridDrift { from { background-position: 0 0; } to { background-position: 60px 60px; } }

/* Aurora wave */
.landing-bg-aurora {
    position: absolute; top: -20%; left: -10%; right: -10%; height: 60%;
    background: conic-gradient(from 180deg at 50% 50%, transparent 0deg, var(--teal-glow) 60deg, transparent 120deg, var(--gold-glow) 200deg, transparent 280deg);
    filter: blur(100px); opacity: .06;
    animation: auroraSweep 20s ease-in-out infinite alternate;
}
@keyframes auroraSweep { from { transform: rotate(0deg) scale(1); } to { transform: rotate(30deg) scale(1.2); } }
.landing-bg-orb {
    position: absolute; border-radius: 50%; filter: blur(80px); opacity: .15;
    will-change: transform;
}
.landing-bg-orb.orb-1 {
    width: 500px; height: 500px; background: var(--violet-500);
    top: -100px; left: -150px;
    animation: orbFloat1 20s ease-in-out infinite;
}
.landing-bg-orb.orb-2 {
    width: 400px; height: 400px; background: var(--gold-500);
    top: 30%; right: -100px;
    animation: orbFloat2 25s ease-in-out infinite;
}
.landing-bg-orb.orb-3 {
    width: 350px; height: 350px; background: #0f9d72;
    bottom: -100px; left: 40%;
    animation: orbFloat3 30s ease-in-out infinite;
}
@keyframes orbFloat1 { 0%,100% { transform: translate(0,0) scale(1); } 33% { transform: translate(60px,40px) scale(1.05); } 66% { transform: translate(30px,80px) scale(.95); } }
@keyframes orbFloat2 { 0%,100% { transform: translate(0,0) scale(1); } 33% { transform: translate(-50px,60px) scale(1.08); } 66% { transform: translate(-80px,20px) scale(.92); } }
@keyframes orbFloat3 { 0%,100% { transform: translate(0,0) scale(1); } 33% { transform: translate(40px,-50px) scale(1.06); } 66% { transform: translate(-20px,-30px) scale(.94); } }

.landing-bg-particles { position: absolute; inset: 0; }
.landing-bg-particles span {
    position: absolute; width: 4px; height: 4px; border-radius: 50%;
    background: var(--violet-400); opacity: .3;
    animation: particleRise 15s linear infinite;
    will-change: transform, opacity;
}
.landing-bg-particles span:nth-child(1) { left: 10%; animation-delay: 0s; animation-duration: 12s; }
.landing-bg-particles span:nth-child(2) { left: 20%; animation-delay: 2s; animation-duration: 18s; }
.landing-bg-particles span:nth-child(3) { left: 30%; animation-delay: 4s; animation-duration: 14s; }
.landing-bg-particles span:nth-child(4) { left: 40%; animation-delay: 1s; animation-duration: 20s; }
.landing-bg-particles span:nth-child(5) { left: 50%; animation-delay: 3s; animation-duration: 16s; }
.landing-bg-particles span:nth-child(6) { left: 60%; animation-delay: 5s; animation-duration: 13s; }
.landing-bg-particles span:nth-child(7) { left: 70%; animation-delay: 2s; animation-duration: 17s; }
.landing-bg-particles span:nth-child(8) { left: 80%; animation-delay: 6s; animation-duration: 15s; }
.landing-bg-particles span:nth-child(9) { left: 90%; animation-delay: 4s; animation-duration: 19s; }
.landing-bg-particles span:nth-child(10) { left: 15%; animation-delay: 7s; animation-duration: 14s; }
@keyframes particleRise {
    0% { transform: translateY(100vh) scale(0) rotate(0deg); opacity: 0; }
    10% { opacity: .4; }
    50% { transform: translateY(50vh) scale(1) rotate(180deg); }
    90% { opacity: .3; }
    100% { transform: translateY(-10vh) scale(.5) rotate(360deg); opacity: 0; }
}

/* Shooting stars */
.landing-bg-shootingstar {
    position: absolute; width: 2px; height: 2px; border-radius: 50%;
    background: var(--violet-300); opacity: 0;
}
.landing-bg-shootingstar::before {
    content: ''; position: absolute; top: 0; left: 0; width: 80px; height: 1px;
    background: linear-gradient(90deg, var(--violet-300), transparent);
    transform: translateX(-80px);
}
.landing-bg-shootingstar.s1 { top: 15%; left: 80%; animation: shoot 8s ease-in 2s infinite; }
.landing-bg-shootingstar.s2 { top: 40%; left: 20%; animation: shoot 12s ease-in 5s infinite; }
@keyframes shoot {
    0% { transform: translate(0,0) rotate(35deg); opacity: 0; }
    3% { opacity: 1; }
    10% { transform: translate(-300px,200px) rotate(35deg); opacity: 0; }
    100% { opacity: 0; }
}

/* ---- Navigation ---- */
.landing-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    transition: all .4s var(--ease);
    padding: 16px 0;
    will-change: padding, background;
}
.landing-nav.scrolled {
    background: var(--surface-glass);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0,0,0,.06);
}
.landing-nav-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.landing-brand { display: flex; align-items: center; gap: 12px; transition: transform .3s var(--ease); }
.landing-brand:hover { transform: scale(1.03); }
.landing-logo-group { display: flex; align-items: center; flex-shrink: 0; position: relative; }
.landing-brand-logo {
    width: 40px; height: 40px; border-radius: 10px;
    box-shadow: 0 4px 12px var(--teal-glow);
    transition: box-shadow .3s, transform .3s;
    animation: logoGlow 4s ease-in-out infinite;
    position: relative; z-index: 1;
}
.landing-partner-logo { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; background: #fff; padding: 2px; margin-left: -10px; box-shadow: 0 4px 12px rgba(0,0,0,.15); border: 2px solid var(--surface, #fff); position: relative; z-index: 2; animation: partnerPulse 2.5s ease-in-out infinite; }
@keyframes partnerPulse { 0%,100% { transform: scale(1); box-shadow: 0 4px 12px rgba(0,0,0,.15); } 50% { transform: scale(1.08); box-shadow: 0 4px 18px rgba(124,184,138,.35); } }
.landing-logo-connector { width: 2px; height: 20px; background: linear-gradient(180deg, #4f8c63, #7cb88a); border-radius: 2px; margin: 0 4px; opacity: .5; animation: connectorGlow 2s ease-in-out infinite; }
@keyframes connectorGlow { 0%,100% { opacity: .3; } 50% { opacity: .7; box-shadow: 0 0 6px rgba(124,184,138,.4); } }
@keyframes logoGlow {
    0%,100% { box-shadow: 0 4px 12px var(--teal-glow); }
    50% { box-shadow: 0 4px 24px var(--teal-glow), 0 0 0 4px color-mix(in srgb, var(--violet-500) 8%, transparent); }
}
.landing-brand-text b { display: block; font-family: var(--font-head); font-size: 16px; font-weight: 700; color: var(--text); }
.landing-brand-text b .brand-name { font-weight: 700; }
.landing-brand-text b .brand-sep { font-weight: 300; font-size: 13px; color: #4f8c63; margin: 0 4px; opacity: .7; }
.landing-brand-text span { display: block; font-size: 11px; color: var(--text-soft); }
.landing-school-logo { width: 36px; height: 36px; border-radius: 50%; object-fit: contain; background: #fff; padding: 3px; margin-left: 8px; box-shadow: 0 4px 12px rgba(0,0,0,.15); flex-shrink: 0; }

.landing-nav-links { display: flex; align-items: center; gap: 8px; }
.landing-nav-link {
    padding: 8px 14px; border-radius: 10px; font-size: 14px; font-weight: 600;
    color: var(--text-soft); text-decoration: none; transition: all .25s var(--ease);
    display: flex; align-items: center; gap: 6px;
    position: relative; overflow: hidden;
}
.landing-nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 2px;
    background: var(--violet-500); border-radius: 2px;
    transition: width .3s var(--ease), left .3s var(--ease);
}
.landing-nav-link:hover { color: var(--violet-500); background: var(--surface-2); }
.landing-nav-link:hover::after { width: 60%; left: 20%; }
.landing-nav-link i { font-size: 12px; }

.landing-nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: 8px; }
.landing-nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all .3s; }
.landing-nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.landing-nav-toggle.active span:nth-child(2) { opacity: 0; }
.landing-nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ---- Buttons ---- */
.landing-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: 12px; font-size: 14px; font-weight: 700;
    text-decoration: none; cursor: pointer; border: none;
    transition: all .3s var(--ease);
    font-family: var(--font);
    position: relative; overflow: hidden;
    will-change: transform;
}
.landing-btn::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
    transform: translateX(-100%); transition: transform .6s var(--ease);
}
.landing-btn:hover::before { transform: translateX(100%); }
.landing-btn-primary {
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    color: #fff;
    box-shadow: 0 4px 14px var(--teal-glow);
}
.landing-btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 10px 30px var(--teal-glow);
}
.landing-btn-primary:active { transform: translateY(-1px) scale(1); }
.landing-btn-ghost {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}
.landing-btn-ghost:hover {
    border-color: var(--violet-300);
    color: var(--violet-500);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.landing-btn-ghost:active { transform: translateY(-1px) scale(1); }
.landing-btn-lg { padding: 14px 28px; font-size: 15px; border-radius: 14px; }

/* ---- Hero ---- */
.landing-hero {
    position: relative; z-index: 1;
    max-width: 1200px; margin: 0 auto; padding: 140px 24px 80px;
    display: grid; grid-template-columns: 1.2fr 1fr; gap: 60px; align-items: center;
    min-height: 90vh;
}
.landing-hero-content { animation: heroFadeIn .8s var(--ease) both; }
.landing-hero-content > * { animation: heroItemIn .6s var(--ease) both; }
.landing-hero-content > *:nth-child(1) { animation-delay: .1s; }
.landing-hero-content > *:nth-child(2) { animation-delay: .2s; }
.landing-hero-content > *:nth-child(3) { animation-delay: .3s; }
.landing-hero-content > *:nth-child(4) { animation-delay: .4s; }
.landing-hero-content > *:nth-child(5) { animation-delay: .5s; }
@keyframes heroFadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes heroItemIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.landing-hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 20px;
    background: var(--surface-glass); backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    font-size: 12px; font-weight: 600; color: var(--text-soft);
    margin-bottom: 24px;
}
.landing-hero-badge-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--success);
    animation: badgePulse 2s ease-in-out infinite;
}
@keyframes badgePulse { 0%,100% { box-shadow: 0 0 0 0 rgba(15,157,114,.4); } 50% { box-shadow: 0 0 0 6px rgba(15,157,114,0); } }

.landing-hero-title {
    font-family: var(--font-head); font-size: 52px; font-weight: 800; line-height: 1.1;
    color: var(--text); margin: 0 0 20px; letter-spacing: -.02em;
}
.landing-hero-title-gradient {
    display: block;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400), var(--gold-500), var(--violet-400));
    background-size: 200% 200%;
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease-in-out infinite alternate, gradientFlow 8s linear infinite;
}
@keyframes gradientShift { from { filter: hue-rotate(0deg); } to { filter: hue-rotate(15deg); } }
@keyframes gradientFlow { from { background-position: 0% 50%; } to { background-position: 200% 50%; } }

.landing-hero-desc {
    font-size: 17px; line-height: 1.6; color: var(--text-soft);
    max-width: 520px; margin: 0 0 32px;
}

.landing-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }

.landing-hero-stats { display: flex; gap: 40px; }
.landing-hero-stat { text-align: left; transition: transform .3s var(--ease); }
.landing-hero-stat:hover { transform: translateY(-4px); }
.landing-hero-stat-num {
    font-family: var(--font-head); font-size: 32px; font-weight: 800;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform .3s var(--ease);
}
.landing-hero-stat:hover .landing-hero-stat-num { transform: scale(1.1); }
.landing-hero-stat-label { font-size: 12px; color: var(--text-soft); font-weight: 600; margin-top: 2px; }

/* Hero visual */
.landing-hero-visual {
    position: relative; height: 420px;
    animation: heroVisualIn 1s var(--ease) .3s both;
}
@keyframes heroVisualIn { from { opacity: 0; transform: scale(.9); } to { opacity: 1; transform: scale(1); } }

.landing-hero-card {
    position: absolute; display: flex; align-items: center; gap: 12px;
    padding: 14px 18px; border-radius: 16px;
    background: var(--surface-glass); backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    animation: heroCardFloat 4s ease-in-out infinite;
    will-change: transform;
    transition: box-shadow .3s, border-color .3s;
}
.landing-hero-card:hover {
    border-color: var(--violet-300);
    box-shadow: var(--shadow-lg), 0 0 20px var(--teal-glow);
    animation-play-state: paused;
}
.landing-hero-card-1 { top: 20px; left: 0; animation-delay: 0s; }
.landing-hero-card-2 { top: 160px; right: 20px; animation-delay: 1s; }
.landing-hero-card-3 { bottom: 40px; left: 40px; animation-delay: 2s; }
@keyframes heroCardFloat { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-15px) rotate(1deg); } }

.landing-hero-card-icon {
    width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,.12);
}
.landing-hero-card-title { font-size: 14px; font-weight: 700; color: var(--text); font-family: var(--font-head); }
.landing-hero-card-sub { font-size: 12px; color: var(--text-soft); }

.landing-hero-orbit {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 280px; height: 280px;
}
.landing-hero-orbit-ring {
    position: absolute; inset: 0; border-radius: 50%;
    border: 2px solid var(--border);
    animation: orbitSpin 20s linear infinite;
}
.landing-hero-orbit-ring.r2 {
    inset: 30px; border-color: color-mix(in srgb, var(--violet-500) 20%, transparent);
    animation: orbitSpin 15s linear infinite reverse;
}
.landing-hero-orbit-ring.r3 {
    inset: 60px; border-color: color-mix(in srgb, var(--gold-500) 15%, transparent);
    border-style: dashed;
    animation: orbitSpin 25s linear infinite;
}
@keyframes orbitSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.landing-hero-orbit-core {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    width: 80px; height: 80px; border-radius: 50%;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 32px;
    box-shadow: 0 0 40px var(--teal-glow);
    animation: orbitCorePulse 3s ease-in-out infinite;
}
.landing-hero-orbit-core::before {
    content: ''; position: absolute; inset: -8px; border-radius: 50%;
    border: 2px solid var(--violet-400); opacity: 0;
    animation: orbitCoreRing 3s ease-out infinite;
}
.landing-hero-orbit-core::after {
    content: ''; position: absolute; inset: -8px; border-radius: 50%;
    border: 2px solid var(--violet-400); opacity: 0;
    animation: orbitCoreRing 3s ease-out 1.5s infinite;
}
@keyframes orbitCorePulse { 0%,100% { transform: translate(-50%,-50%) scale(1); } 50% { transform: translate(-50%,-50%) scale(1.08); } }
@keyframes orbitCoreRing {
    0% { transform: scale(1); opacity: .6; }
    100% { transform: scale(1.8); opacity: 0; }
}

/* ---- Sections ---- */
.landing-section {
    position: relative; z-index: 1;
    max-width: 1200px; margin: 0 auto; padding: 80px 24px;
}
.landing-section-calendar-first {
    padding-top: 110px;
}
.landing-section-alt {
    max-width: none; background: var(--surface-2);
    border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.landing-section-alt > * { max-width: 1200px; margin-left: auto; margin-right: auto; }

.landing-section-header { text-align: center; margin-bottom: 48px; }
.landing-section-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 14px; border-radius: 20px;
    background: var(--surface); border: 1px solid var(--border);
    font-size: 12px; font-weight: 700; color: var(--violet-500);
    text-transform: uppercase; letter-spacing: .5px;
    margin-bottom: 16px;
    animation: badgeFadeIn .5s var(--ease) both;
}
@keyframes badgeFadeIn { from { opacity: 0; transform: scale(.8); } to { opacity: 1; transform: scale(1); } }
.landing-section-badge i { font-size: 11px; }

.landing-section-title {
    font-family: var(--font-head); font-size: 36px; font-weight: 800;
    color: var(--text); margin: 0 0 12px; letter-spacing: -.02em;
    position: relative;
}
.landing-section-desc { font-size: 16px; color: var(--text-soft); max-width: 600px; margin: 0 auto; }

/* ---- Calendar section ---- */
.landing-calendar-wrap {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 20px; padding: 24px;
    box-shadow: var(--shadow-md);
    animation: calWrapIn .6s var(--ease) both;
    position: relative; overflow: hidden;
    transition: box-shadow .4s var(--ease), border-color .4s;
}
.landing-calendar-wrap::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--violet-500), var(--violet-400), var(--gold-500), var(--violet-400));
    background-size: 200% 100%;
    animation: gradientFlow 6s linear infinite;
}
.landing-calendar-wrap:hover {
    box-shadow: var(--shadow-lg), 0 0 30px var(--teal-glow);
    border-color: var(--violet-300);
}
@keyframes calWrapIn { from { opacity: 0; transform: translateY(20px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }

.landing-calendar-toolbar { margin-bottom: 16px; }
.landing-facility-filter {
    display: flex; gap: 8px; flex-wrap: wrap;
}
.landing-fac-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: 10px;
    background: var(--surface-2); border: 1px solid var(--border);
    font-size: 13px; font-weight: 600; color: var(--text-soft);
    cursor: pointer; transition: all .25s var(--ease);
    font-family: var(--font);
    position: relative; overflow: hidden;
}
.landing-fac-chip::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    opacity: 0; transition: opacity .25s;
    z-index: -1;
}
.landing-fac-chip:hover { border-color: var(--violet-300); color: var(--violet-500); transform: translateY(-2px); }
.landing-fac-chip.active {
    color: #fff; border-color: transparent;
    box-shadow: 0 4px 12px var(--teal-glow);
    transform: translateY(-2px);
}
.landing-fac-chip.active::before { opacity: 1; }
.landing-fac-chip i { font-size: 12px; }

.landing-calendar-container { position: relative; min-height: 400px; }

/* Calendar legend */
.landing-cal-legend {
    display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
    margin-top: 16px; padding: 14px 18px;
    background: var(--surface-2); border: 1px solid var(--border);
    border-radius: 12px; font-size: 13px; color: var(--text-soft);
}
.landing-cal-legend-title { font-weight: 700; color: var(--text); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; display: inline-flex; align-items: center; gap: 6px; }
.landing-cal-legend-title i { color: var(--violet-500); }
.landing-cal-legend-item { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--text); }
.landing-cal-legend-dot { width: 11px; height: 11px; border-radius: 50%; flex-shrink: 0; }
.landing-cal-legend-approved { background: linear-gradient(135deg, #0f9d72, #22c58f); box-shadow: 0 0 0 3px rgba(15,157,114,.15); }
.landing-cal-legend-completed { background: linear-gradient(135deg, #2f86c9, #52a8f0); box-shadow: 0 0 0 3px rgba(47,134,201,.15); }
.landing-cal-legend-pending { background: linear-gradient(135deg, #d98a00, #f5b53a); box-shadow: 0 0 0 3px rgba(217,138,0,.15); }
.landing-cal-legend-note { margin-left: auto; font-size: 12px; color: var(--text-faint); font-style: italic; }
@media (max-width: 640px) { .landing-cal-legend-note { margin-left: 0; width: 100%; } }

.landing-cal-loading {
    position: absolute; inset: 0; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 12px;
    background: var(--surface); border-radius: 12px; z-index: 5;
    font-size: 14px; color: var(--text-soft); font-weight: 600;
}
.landing-cal-spinner {
    width: 36px; height: 36px; border-radius: 50%;
    border: 3px solid var(--border); border-top-color: var(--violet-500);
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Facilities grid ---- */
.landing-facility-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px;
}
.landing-facility-card {
    position: relative; padding: 28px 24px; border-radius: 18px;
    background: var(--surface); border: 1px solid var(--border);
    overflow: hidden; transition: all .4s var(--ease);
    animation: facCardIn .5s var(--ease) both;
    will-change: transform;
}
@keyframes facCardIn { from { opacity: 0; transform: translateY(30px) scale(.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.landing-facility-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg), 0 0 30px color-mix(in srgb, var(--violet-500) 12%, transparent);
    border-color: var(--violet-300);
}
.landing-facility-card::after {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.05), transparent);
    transition: left .8s var(--ease);
}
.landing-facility-card:hover::after { left: 100%; }
.landing-facility-card-glow {
    position: absolute; top: -50%; right: -30%; width: 200px; height: 200px;
    border-radius: 50%; background: var(--violet-500);
    filter: blur(60px); opacity: 0;
    transition: opacity .4s;
}
.landing-facility-card:hover .landing-facility-card-glow { opacity: .12; }

.landing-facility-card-icon {
    width: 52px; height: 52px; border-radius: 14px; margin-bottom: 16px;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 22px;
    box-shadow: 0 6px 16px var(--teal-glow);
    transition: transform .3s var(--ease);
}
.landing-facility-card:hover .landing-facility-card-icon { transform: scale(1.1) rotate(-5deg); }

.landing-facility-card-name {
    font-family: var(--font-head); font-size: 18px; font-weight: 700;
    color: var(--text); margin: 0 0 10px;
}
.landing-facility-card-meta {
    display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px;
    font-size: 13px; color: var(--text-soft);
}
.landing-facility-card-meta span { display: flex; align-items: center; gap: 5px; }
.landing-facility-card-meta i { color: var(--violet-500); font-size: 12px; }
.landing-facility-card-desc { font-size: 13px; color: var(--text-soft); line-height: 1.5; margin: 0; }

/* ---- Steps ---- */
.landing-steps {
    display: flex; align-items: flex-start; justify-content: center; gap: 0; flex-wrap: wrap;
}
.landing-step {
    flex: 1; min-width: 220px; max-width: 300px;
    text-align: center; padding: 32px 24px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 18px;
    transition: all .4s var(--ease);
    animation: stepIn .5s var(--ease) both;
    position: relative; overflow: hidden;
    will-change: transform;
}
.landing-step:nth-child(1) { animation-delay: 0s; }
.landing-step:nth-child(3) { animation-delay: .1s; }
.landing-step:nth-child(5) { animation-delay: .2s; }
@keyframes stepIn { from { opacity: 0; transform: translateY(30px) scale(.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.landing-step:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-lg), 0 0 25px var(--teal-glow); border-color: var(--violet-300); }
.landing-step::after {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.05), transparent);
    transition: left .8s var(--ease);
}
.landing-step:hover::after { left: 100%; }

.landing-step-num {
    position: absolute; top: 16px; right: 20px;
    font-family: var(--font-head); font-size: 48px; font-weight: 800;
    color: var(--surface-2); line-height: 1;
    z-index: 0;
    transition: color .4s, transform .4s;
}
.landing-step:hover .landing-step-num { color: color-mix(in srgb, var(--violet-500) 8%, var(--surface-2)); transform: scale(1.1); }

.landing-step-icon {
    width: 56px; height: 56px; border-radius: 16px; margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--violet-500), var(--violet-400));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 24px;
    box-shadow: 0 6px 18px var(--teal-glow);
    position: relative; z-index: 1;
    transition: transform .3s var(--ease);
}
.landing-step:hover .landing-step-icon { transform: scale(1.1) rotate(-5deg); }

.landing-step-title {
    font-family: var(--font-head); font-size: 17px; font-weight: 700;
    color: var(--text); margin: 0 0 8px; position: relative; z-index: 1;
}
.landing-step-desc { font-size: 13px; color: var(--text-soft); line-height: 1.5; margin: 0; position: relative; z-index: 1; }

.landing-step-connector {
    flex: 0 0 60px; display: flex; align-items: center; justify-content: center;
    padding-top: 50px;
}
.landing-step-connector-line {
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--violet-300), var(--violet-400), var(--violet-300));
    background-size: 200% 100%;
    opacity: .3;
    animation: connectorFlow 3s linear infinite;
}
@keyframes connectorFlow { from { background-position: 0% 50%; } to { background-position: 200% 50%; } }

/* ---- Footer ---- */
.landing-footer {
    position: relative; z-index: 1;
    background: var(--surface); border-top: 1px solid var(--border);
    padding: 32px 24px; margin-top: 40px;
}
.landing-footer-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.landing-footer-brand { display: flex; align-items: center; gap: 12px; }
.landing-footer-logo-group { display: flex; align-items: center; flex-shrink: 0; }
.landing-footer-logo { width: 36px; height: 36px; border-radius: 10px; position: relative; z-index: 1; }
.landing-footer-partner-logo { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; background: #fff; padding: 2px; margin-left: -8px; border: 2px solid var(--surface, #fff); position: relative; z-index: 2; }
.landing-footer-school-logo { width: 32px; height: 32px; border-radius: 50%; object-fit: contain; background: #fff; padding: 3px; margin-left: 8px; flex-shrink: 0; }
.landing-footer-brand b { display: block; font-family: var(--font-head); font-size: 15px; font-weight: 700; color: var(--text); }
.landing-footer-brand b .brand-name { font-weight: 700; }
.landing-footer-brand b .brand-sep { font-weight: 300; font-size: 12px; color: #4f8c63; margin: 0 4px; opacity: .7; }
.landing-footer-brand span { display: block; font-size: 11px; color: var(--text-soft); }
.landing-footer-copy { font-size: 13px; color: var(--text-soft); }

/* Developer credit */
.landing-footer-dev {
    display: flex; align-items: center; gap: 14px;
    padding: 10px 20px 10px 10px; border-radius: 999px;
    background: var(--surface-2); border: 1px solid var(--border);
    transition: transform .3s var(--ease), box-shadow .3s var(--ease);
    cursor: default;
}
.landing-footer-dev:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 24px rgba(79,140,99,.18);
}
.dev-avatar-wrap {
    position: relative; width: 52px; height: 52px;
    display: grid; place-items: center; flex-shrink: 0;
}
.dev-avatar {
    width: 44px; height: 44px; border-radius: 50%;
    object-fit: cover; position: relative; z-index: 3;
    border: 2px solid var(--surface);
    transition: transform .4s var(--ease);
    image-rendering: -webkit-optimize-contrast;
    filter: contrast(1.05) saturate(1.1);
    cursor: pointer;
}
.landing-footer-dev:hover .dev-avatar { transform: scale(1.1) rotate(5deg); }
.dev-avatar-ring {
    position: absolute; inset: -2px; border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: #4f8c63; border-right-color: #7cb88a;
    animation: devSpin 3s linear infinite;
}
.dev-avatar-glow {
    position: absolute; inset: -4px; border-radius: 50%;
    background: conic-gradient(from 0deg, #4f8c63, #7cb88a, #4f8c63);
    opacity: 0; filter: blur(8px);
    transition: opacity .4s var(--ease);
    animation: devPulseGlow 2.5s ease-in-out infinite;
}
.landing-footer-dev:hover .dev-avatar-glow { opacity: .5; }
@keyframes devSpin { to { transform: rotate(360deg); } }
@keyframes devPulseGlow {
    0%,100% { transform: scale(1); opacity: 0; }
    50% { transform: scale(1.15); opacity: .25; }
}
.dev-info { display: flex; flex-direction: column; line-height: 1.3; }
.dev-label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-faint); }
.dev-name {
    font-family: var(--font-head); font-size: 18px; font-weight: 700;
    background: linear-gradient(135deg, #4f8c63, #7cb88a, #4f8c63);
    background-size: 200% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: devNameShimmer 3s ease-in-out infinite;
}
@keyframes devNameShimmer {
    0%,100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
    .landing-hero { grid-template-columns: 1fr; gap: 40px; padding-top: 120px; min-height: auto; }
    .landing-hero-visual { height: 300px; }
    .landing-hero-title { font-size: 38px; }
    .landing-hero-stats { gap: 24px; }
    .landing-step-connector { display: none; }
    .landing-steps { gap: 16px; }
}

@media (max-width: 640px) {
    .landing-nav-links { display: none; position: fixed; top: 70px; left: 0; right: 0; flex-direction: column; padding: 20px; background: var(--surface); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-md); }
    .landing-nav-links.open { display: flex; }
    .landing-nav-toggle { display: flex; }
    .landing-hero-title { font-size: 30px; }
    .landing-hero-desc { font-size: 15px; }
    .landing-hero-stats { flex-wrap: wrap; gap: 20px; }
    .landing-section-title { font-size: 26px; }
    .landing-section { padding: 60px 16px; }
    .landing-calendar-wrap { padding: 16px; }
    .landing-facility-grid { grid-template-columns: 1fr; }
    .landing-footer-inner { flex-direction: column; text-align: center; }
}

/* GPU acceleration for smooth animations */
.landing-hero-card, .landing-hero-orbit-core, .landing-bg-orb, .landing-bg-particles span,
.landing-facility-card, .landing-step, .landing-btn, .landing-fac-chip {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Reduced motion — respect user preferences */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
}