/* ─── Reset / Base ─── */
.landing-section { padding: 4rem 1rem; }
@media (min-width: 768px) { .landing-section { padding: 5rem 1rem; } }

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem 1.1rem;
    border-radius: 9999px;
    border: 1.5px solid rgba(var(--primary), .2);
    color: rgb(var(--primary));
    font-size: 10px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .12em;
    margin-bottom: 1.25rem;
}
.section-tag--mb0 { margin-bottom: 0; }
.section-tag--cta { border-color: rgba(255,255,255,.2);     color: rgba(var(--surface), 1); position: relative; z-index: 1; }

.section-title {
    font-size: 1.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -.03em;
    line-height: 1.1;
    color: rgba(var(--on-surface), 1);
}
@media (min-width: 768px) { .section-title { font-size: 2.75rem; } }
.section-title .hl { color: rgb(var(--secondary)); }
.section-desc {
    margin-top: .75rem;
    font-size: .9rem;
    line-height: 1.65;
    color: rgba(var(--on-surface-variant), 1);
    max-width: 32rem;
}

/* ─── Floating background ─── */
.fb {
    position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: -10;
}
.fb-orb {
    position: absolute;
    border-radius: 9999px;
    filter: blur(100px);
    opacity: .07;
}
.fb-orb--1 { top: 0; left: -5%; width: 500px; height: 500px; background: rgb(var(--secondary)); animation: fb-float 30s ease-in-out infinite; }
.fb-orb--2 { bottom: 0; right: -5%; width: 400px; height: 400px; background: rgb(var(--primary)); animation: fb-float 35s ease-in-out infinite reverse; }
.fb-orb--3 { top: 40%; left: 45%; width: 300px; height: 300px; background: rgb(var(--tertiary)); animation: fb-float 25s ease-in-out infinite 8s; }
@keyframes fb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(50px, -60px) scale(1.12); }
    66% { transform: translate(-40px, 40px) scale(.92); }
}

/* ─── HERO ─── */
.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
        radial-gradient(ellipse 90% 55% at 50% 0%, rgba(var(--primary),.1) 0%, transparent 65%),
        radial-gradient(ellipse 60% 45% at 80% 100%, rgba(var(--secondary),.07) 0%, transparent 55%),
        radial-gradient(ellipse 50% 40% at 20% 80%, rgba(var(--tertiary),.04) 0%, transparent 50%);
}
.hero__grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(var(--primary),.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--primary),.04) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 65% 60% at 50% 45%, #000 25%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 65% 60% at 50% 45%, #000 25%, transparent 70%);
}
.hero__bg-shape {
    position: absolute;
    border-radius: 9999px;
    opacity: .04;
    background: rgb(var(--secondary));
    filter: blur(60px);
}
.hero__bg-shape--1 { width: 600px; height: 600px; top: -200px; right: -100px; }
.hero__bg-shape--2 { width: 400px; height: 400px; bottom: -100px; left: -100px; background: rgb(var(--primary)); }

/* Star particles */
.hero__particles { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.hero__particle {
    position: absolute;
    width: 5px; height: 5px;
    border-radius: 9999px;
    opacity: 0;
}
.hero__particle--1 { top: 18%; left: 12%; background: rgb(var(--primary)); animation: hp 14s ease-in-out infinite; }
.hero__particle--2 { top: 28%; left: 78%; background: rgb(var(--tertiary)); animation: hp 18s ease-in-out infinite 3s; width: 7px; height: 7px; }
.hero__particle--3 { top: 65%; left: 85%; background: rgb(var(--secondary)); animation: hp 12s ease-in-out infinite 6s; width: 4px; height: 4px; }
.hero__particle--4 { top: 75%; left: 18%; background: rgb(var(--primary)); animation: hp 16s ease-in-out infinite 2s; }
.hero__particle--5 { top: 50%; left: 50%; background: rgb(var(--tertiary)); animation: hp 20s ease-in-out infinite 7s; width: 6px; height: 6px; }
.hero__particle--6 { top: 10%; left: 45%; background: rgb(var(--secondary)); animation: hp 15s ease-in-out infinite 5s; width: 3px; height: 3px; }
@keyframes hp {
    0%, 100% { opacity: 0; transform: translateY(20px) scale(.5); }
    25% { opacity: .3; }
    50% { opacity: .1; transform: translateY(-30px) scale(1.2); }
    75% { opacity: .2; }
}

/* Floating stars SVG */
.hero__fs {
    position: absolute; pointer-events: none; color: rgb(var(--tertiary)); opacity: .08;
}
.hero__fs--1 { top: 8%; right: 15%; animation: hp 6s ease-in-out infinite; }
.hero__fs--2 { bottom: 15%; left: 8%; animation: hp 8s ease-in-out infinite 2s; }
.hero__fs--3 { top: 40%; left: 5%; animation: hp 7s ease-in-out infinite 4s; }
.hero__fs .material-symbols-outlined { font-size: 32px !important; }
@media (min-width: 768px) { .hero__fs .material-symbols-outlined { font-size: 48px !important; } }

/* ─── LOGO VISUAL ─── */
.hero__visual {
    position: relative;
    flex-shrink: 0;
}
.hero__visual-ring {
    position: absolute;
    inset: -12px;
    border-radius: 9999px;
    border: 1.5px solid rgba(var(--surface-container-high),.4);
    animation: ring-pulse 4s ease-in-out infinite;
}
.hero__visual-ring--2 { inset: -24px; animation-delay: 1.5s; }
@keyframes ring-pulse {
    0%, 100% { transform: scale(1); opacity: .4; }
    50% { transform: scale(1.08); opacity: .15; }
}
.hero__visual-inner {
    position: relative;
    width: 11rem; height: 11rem;
    border-radius: 9999px;
    padding: .6rem;
    background: rgba(var(--surface-container-lowest),.6);
    border: 2px solid rgba(var(--surface-container-high),.5);
    box-shadow: 0 25px 80px -20px rgba(0,0,0,.25);
    backdrop-filter: blur(12px);
    transition: transform .5s cubic-bezier(.22,1,.36,1);
}
.hero__visual-inner:hover { transform: scale(1.03); }
@media (min-width: 768px) { .hero__visual-inner { width: 14rem; height: 14rem; } }
.hero__visual-bg {
    width: 100%; height: 100%;
    border-radius: 9999px;
    background: linear-gradient(135deg, rgb(var(--primary)), rgb(var(--secondary)));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.hero__visual-bg::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 25%, rgba(255,255,255,.2), transparent 60%);
}
.hero__visual-logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 9999px;
    position: relative;
    z-index: 1;
}
.hero__visual-star {
    position: absolute;
    top: -.75rem; right: -.25rem;
    z-index: 3;
    animation: pulse-star 2.5s cubic-bezier(.4,0,.6,1) infinite;
}
.hero__visual-star .material-symbols-outlined {
    font-size: 3rem !important;
    color: rgb(var(--tertiary));
    filter: drop-shadow(0 4px 16px rgba(var(--tertiary),.4));
}
@media (min-width: 768px) { .hero__visual-star .material-symbols-outlined { font-size: 4rem !important; } }
.hero__visual-rocket {
    position: absolute;
    bottom: -.25rem; left: -.75rem;
    opacity: .2;
    transform: rotate(-15deg);
    z-index: 1;
}
.hero__visual-rocket .material-symbols-outlined { font-size: 3rem !important; color: rgb(var(--primary)); }
@media (min-width: 768px) { .hero__visual-rocket .material-symbols-outlined { font-size: 3.5rem !important; } }

/* ─── HERO TEXT ─── */
.hero__title {
    font-size: 1.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -.05em;
    line-height: 1.05;
    color: rgba(var(--on-surface), 1);
}
@media (min-width: 768px) { .hero__title { font-size: 3.25rem; } }
@media (min-width: 1024px) { .hero__title { font-size: 3.75rem; } }
.hero__title .hl { color: rgb(var(--secondary)); }
.hero__title .hl-under {
    display: inline-block;
    position: relative;
}
.hero__title .hl-under::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    height: 4px;
    border-radius: 2px;
    background: rgb(var(--secondary));
    opacity: .25;
}
.hero__desc {
    margin-top: 1.25rem;
    font-size: 1rem;
    line-height: 1.65;
    color: rgba(var(--on-surface-variant), 1);
    max-width: 520px;
}
@media (min-width: 768px) { .hero__desc { font-size: 1.125rem; margin-top: 1.5rem; } }

/* Stats row */
.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem 2.5rem;
    margin-top: 2.5rem;
}
@media (min-width: 768px) { .hero__stats { margin-top: 3rem; gap: 2rem 3.5rem; } }
.hero__stat-value {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -.03em;
}
@media (min-width: 768px) { .hero__stat-value { font-size: 1.75rem; } }
.hero__stat-value--tertiary { color: rgb(var(--tertiary)); }
.hero__stat-value--secondary { color: rgb(var(--secondary)); }
.hero__stat-value--primary { color: rgb(var(--primary)); }
.hero__stat-label {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .12em;
    color: rgba(var(--on-surface-variant), .6);
    margin-top: .15rem;
}

/* ─── SCROLL HINT ─── */
.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
    color: rgba(var(--on-surface),.2);
    animation: scroll-bounce 2.5s ease-in-out infinite;
}
.hero__scroll span:first-child {
    font-size: 7px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .2em;
}
.hero__scroll .material-symbols-outlined { font-size: 20px !important; }
@keyframes scroll-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ─── FEATURE CARDS ─── */
.f-grid {
    display: grid;
    gap: 1.25rem;
    max-width: 80rem;
    margin: 0 auto;
}
@media (min-width: 640px) { .f-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .f-grid { grid-template-columns: repeat(3, 1fr); } }

.f-card {
    position: relative;
    border-radius: 28px;
    border: 1px solid rgba(var(--surface-container-high),.4);
    background: rgba(var(--surface-container-lowest),.35);
    padding: 2rem;
    backdrop-filter: blur(8px);
    transition: all .4s cubic-bezier(.22,1,.36,1);
    overflow: hidden;
}
.f-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(var(--primary),.04), rgba(var(--secondary),.04));
    opacity: 0;
    transition: opacity .4s;
}
.f-card:hover {
    border-color: rgba(var(--primary),.25);
    transform: translateY(-8px);
    box-shadow: 0 30px 70px -24px rgba(var(--primary),.18);
}
.f-card:hover::before { opacity: 1; }
@media (min-width: 768px) { .f-card { border-radius: 36px; padding: 2.5rem; } }

.f-card__icon {
    width: 3.25rem; height: 3.25rem;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--primary),.08), rgba(var(--secondary),.08));
    color: rgb(var(--secondary));
    margin-bottom: 1.25rem;
    transition: all .4s;
}
.f-card:hover .f-card__icon {
    background: linear-gradient(135deg, rgb(var(--secondary)), rgb(var(--primary-fixed)));
    color: #fff;
    transform: scale(1.1) rotate(-4deg);
    box-shadow: 0 8px 24px -8px rgba(var(--secondary),.25);
}
.f-card__icon .material-symbols-outlined { font-size: 24px !important; }

.f-card h3 {
    font-size: 1rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -.02em;
    color: rgba(var(--on-surface), 1);
    margin-bottom: .4rem;
}
.f-card p {
    font-size: .8rem;
    line-height: 1.6;
    color: rgba(var(--on-surface-variant), 1);
}

/* ─── STEPS ─── */
.s-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
    max-width: 60rem;
    margin-left: auto;
    margin-right: auto;
}
@media (min-width: 768px) { .s-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 4rem; } }

.s-card {
    text-align: center;
    position: relative;
    padding: 2rem 1.5rem 1.75rem;
    border-radius: 28px;
    border: 1px solid rgba(var(--surface-container-high),.3);
    background: rgba(var(--surface-container-lowest),.5);
    backdrop-filter: blur(12px);
    transition: all .4s cubic-bezier(.22,1,.36,1);
    overflow: hidden;
}
.s-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, rgb(var(--primary)), rgb(var(--secondary)), rgb(var(--tertiary)));
    opacity: 0;
    transition: opacity .4s;
}
.s-card:nth-child(2)::before { background: linear-gradient(90deg, rgb(var(--secondary)), rgb(var(--tertiary)), rgb(var(--primary))); }
.s-card:nth-child(3)::before { background: linear-gradient(90deg, rgb(var(--tertiary)), rgb(var(--primary)), rgb(var(--secondary))); }

.s-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(var(--primary),.03), rgba(var(--secondary),.03));
    opacity: 0;
    transition: opacity .4s;
    pointer-events: none;
}

.s-card:hover {
    border-color: rgba(var(--primary),.2);
    transform: translateY(-8px);
    box-shadow: 0 24px 60px -20px rgba(var(--secondary),.15);
}
.s-card:hover::before { opacity: 1; }
.s-card:hover::after { opacity: 1; }

.s-card__num {
    position: relative;
    z-index: 1;
    width: 3.25rem; height: 3.25rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgb(var(--primary)), rgb(var(--secondary)));
    color: #fff;
    font-size: 1rem;
    font-weight: 900;
    margin: 0 auto 1.25rem;
    box-shadow: 0 8px 24px -8px rgba(var(--secondary),.35);
    transition: all .35s cubic-bezier(.22,1,.36,1);
}
.s-card:hover .s-card__num {
    transform: scale(1.08);
    box-shadow: 0 12px 32px -8px rgba(var(--secondary),.45);
}

.s-card .f-card__icon {
    position: relative;
    z-index: 1;
    margin: 0 auto 1rem;
    width: 3rem; height: 3rem;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(var(--primary),.08), rgba(var(--secondary),.08));
    color: rgb(var(--secondary));
    transition: all .4s;
}
.s-card:hover .f-card__icon {
    background: linear-gradient(135deg, rgb(var(--secondary)), rgb(var(--primary-fixed)));
    color: #fff;
    transform: scale(1.1) rotate(-6deg);
    box-shadow: 0 8px 24px -8px rgba(var(--secondary),.25);
}
.s-card .f-card__icon .material-symbols-outlined { font-size: 24px !important; }

.s-card h3 {
    position: relative;
    z-index: 1;
    font-size: .95rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -.02em;
    color: rgba(var(--on-surface), 1);
    margin-bottom: .4rem;
    transition: color .3s;
}
.s-card:hover h3 { color: rgb(var(--secondary)); }

.s-card p {
    position: relative;
    z-index: 1;
    font-size: .8rem;
    line-height: 1.55;
    color: rgba(var(--on-surface-variant), 1);
    max-width: 20rem;
    margin: 0 auto;
}

.s-card__arrow {
    display: none;
    position: absolute;
    top: 50%;
    right: -1.5rem;
    transform: translateY(-50%);
    color: rgba(var(--primary),.12);
    z-index: 2;
}
.s-card__arrow .material-symbols-outlined { font-size: 28px !important; }
.s-card:hover .s-card__arrow { color: rgba(var(--secondary),.2); }
@media (min-width: 768px) { .s-card:not(:last-child) .s-card__arrow { display: block; } }

/* ─── TEACHER ─── */
.t-card {
    border-radius: 32px;
    border: 1px solid rgba(var(--surface-container-high),.5);
    background: rgba(var(--surface-container-lowest),.45);
    padding: 2.5rem;
    max-width: 48rem;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    text-align: center;
    backdrop-filter: blur(8px);
}
@media (min-width: 768px) { .t-card { flex-direction: row; text-align: left; padding: 3rem; } }
.t-card__avatar {
    width: 7rem; height: 7rem;
    border-radius: 9999px;
    background: linear-gradient(135deg, rgb(var(--primary)), rgb(var(--secondary)));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 12px 32px -12px rgba(var(--secondary),.25);
    border: 3px solid rgba(var(--surface-container-lowest), 1);
}
.t-card blockquote {
    font-size: 1rem;
    line-height: 1.7;
    color: rgba(var(--on-surface),.75);
    font-style: italic;
}
.t-card blockquote .mat {
    color: rgb(var(--secondary));
    font-size: 1.5rem;
    line-height: 0;
    vertical-align: middle;
}
.t-card cite {
    display: block;
    margin-top: .75rem;
    font-style: normal;
    font-size: .8rem;
    font-weight: 800;
    color: rgba(var(--on-surface), 1);
}
.t-card cite span {
    font-weight: 500;
    color: rgba(var(--on-surface-variant), .6);
}

/* ─── CTA ─── */
.cta {
    position: relative;
    overflow: hidden;
    border-radius: 40px;
    max-width: 64rem;
    margin: 0 auto;
    padding: 3.5rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, rgb(var(--primary)), rgb(var(--secondary)));
    /*color: #fff;*/
    color: rgba(var(--surface), 1);
}
@media (min-width: 768px) { .cta { border-radius: 56px; padding: 5rem 3rem; } }
.cta::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 25% 0%, rgba(255,255,255,.15) 0%, transparent 50%);
    pointer-events: none;
}
.cta__title {
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
    font-style: italic;
    letter-spacing: -.02em;
    position: relative; z-index: 1;
}
@media (min-width: 768px) { .cta__title { font-size: 2.75rem; } }
.cta__desc {
    margin: .75rem auto 2rem;
    max-width: 28rem;
    font-size: .9rem;
    opacity: .85;
    position: relative; z-index: 1;
    line-height: 1.6;
}
.cta__btns {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    position: relative; z-index: 1;
}
.cta__btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    border-radius: 9999px;
    padding: .9rem 2rem;
    font-size: .75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: .1em;
    text-decoration: none;
    transition: all .15s;
}
.cta__btn:active { transform: scale(.95); }
.cta__btn--solid {
    background: #fff;
    color: rgb(var(--secondary));
    box-shadow: 0 8px 24px -6px rgba(0,0,0,.15);
}
.cta__btn--solid:hover { box-shadow: 0 12px 32px -8px rgba(0,0,0,.2); }
.cta__btn--ghost {
    border: 2px solid rgba(255,255,255,.3);
    color: rgba(var(--surface), 1);
    backdrop-filter: blur(8px);
}
.cta__btn--ghost:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.08); }
.cta__decor {
    position: absolute;
    opacity: .08;
    color: #fff;
    pointer-events: none;
}
.cta__decor--1 { top: 1rem; right: 1rem; animation: pulse-star 3s infinite; }
.cta__decor--2 { bottom: .5rem; left: 1rem; transform: rotate(-20deg); }
.cta__decor .material-symbols-outlined { font-size: 60px !important; }
@media (min-width: 768px) { .cta__decor .material-symbols-outlined { font-size: 90px !important; } }

/* ─── Helpers ─── */
.hero-stat--tertiary { color: rgb(var(--tertiary)); }
.hero-stat--secondary { color: rgb(var(--secondary)); }
.hero-stat--primary { color: rgb(var(--primary)); }
.icon--sm { font-size: 14px !important; }
.icon--md { font-size: 16px !important; }
.pt0 { padding-top: 0 !important; }
.pb-section { padding: 0 1rem 4rem; }

/* ─── Animations ─── */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity .8s ease, transform .8s cubic-bezier(.22,1,.36,1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.stagger > * { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s cubic-bezier(.22,1,.36,1); }
.stagger.visible > * { opacity: 1; transform: translateY(0); }
.fade-up.visible .stagger > * { opacity: 1; transform: translateY(0); }

.stagger.visible > *:nth-child(1),
.fade-up.visible .stagger > *:nth-child(1) { transition-delay: .05s; }
.stagger.visible > *:nth-child(2),
.fade-up.visible .stagger > *:nth-child(2) { transition-delay: .15s; }
.stagger.visible > *:nth-child(3),
.fade-up.visible .stagger > *:nth-child(3) { transition-delay: .25s; }
.stagger.visible > *:nth-child(4),
.fade-up.visible .stagger > *:nth-child(4) { transition-delay: .35s; }
.stagger.visible > *:nth-child(5),
.fade-up.visible .stagger > *:nth-child(5) { transition-delay: .45s; }
.stagger.visible > *:nth-child(6),
.fade-up.visible .stagger > *:nth-child(6) { transition-delay: .55s; }

/* ─── Mobile ─── */
@media (max-width: 1023px) {
    .hero__inner { flex-direction: column-reverse !important; text-align: center !important; }
    .hero__text { text-align: center !important; }
    .hero__stats { justify-content: center !important; }
    .hero__desc { margin-left: auto; margin-right: auto; }
    .hero__tag { justify-content: center; }
}