/* Landing page animations — subtle, professional, no external deps */

:root {
    --landing-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --landing-ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
    --landing-brand: #22c55e;
    --landing-brand-dark: #16a34a;
}

/* ── Keyframes ── */

@keyframes landing-fade-up {
    from {
        opacity: 0;
        transform: translateY(1.25rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes landing-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes landing-mesh-drift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes landing-glow-breathe {
    0%, 100% { opacity: 0.45; }
    50% { opacity: 0.7; }
}

@keyframes landing-drift {
    0%, 100% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(0, -5px, 0); }
}

@keyframes landing-drift-reverse {
    0%, 100% { transform: translate3d(0, -2px, 0); }
    50% { transform: translate3d(0, 2px, 0); }
}

@keyframes landing-shimmer {
    0%, 100% { opacity: 0.08; }
    50% { opacity: 0.18; }
}

@keyframes landing-line-draw {
    from { stroke-dashoffset: 120; }
    to { stroke-dashoffset: 0; }
}

/* ── Hero background mesh ── */

.landing-hero-bg {
    background:
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(34, 197, 94, 0.14) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 85% 75%, rgba(22, 163, 74, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(74, 222, 128, 0.06) 0%, transparent 60%);
}

.dark .landing-hero-bg {
    background:
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(34, 197, 94, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 70% 50% at 85% 75%, rgba(22, 163, 74, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(74, 222, 128, 0.05) 0%, transparent 60%);
}

/* ── Page-load hero entrance ── */

.landing-hero-enter > * {
    opacity: 0;
    animation: landing-fade-up 0.7s var(--landing-ease-out) forwards;
}

.landing-hero-enter > *:nth-child(1) { animation-delay: 0.05s; }
.landing-hero-enter > *:nth-child(2) { animation-delay: 0.12s; }
.landing-hero-enter > *:nth-child(3) { animation-delay: 0.2s; }
.landing-hero-enter > *:nth-child(4) { animation-delay: 0.28s; }

.landing-hero-visual-enter {
    opacity: 0;
    animation: landing-fade-up 0.85s var(--landing-ease-out) 0.15s forwards;
}

/* ── Scroll reveal ── */

.landing-reveal {
    opacity: 0;
    transform: translateY(1.25rem);
    transition:
        opacity 0.65s var(--landing-ease-out),
        transform 0.65s var(--landing-ease-out);
    will-change: opacity, transform;
}

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

.landing-reveal-stagger > .landing-reveal-item {
    opacity: 0;
    transform: translateY(1rem);
    transition:
        opacity 0.55s var(--landing-ease-out),
        transform 0.55s var(--landing-ease-out);
}

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

.landing-reveal-stagger.is-visible > .landing-reveal-item:nth-child(1) { transition-delay: 0.04s; }
.landing-reveal-stagger.is-visible > .landing-reveal-item:nth-child(2) { transition-delay: 0.1s; }
.landing-reveal-stagger.is-visible > .landing-reveal-item:nth-child(3) { transition-delay: 0.16s; }
.landing-reveal-stagger.is-visible > .landing-reveal-item:nth-child(4) { transition-delay: 0.22s; }
.landing-reveal-stagger.is-visible > .landing-reveal-item:nth-child(5) { transition-delay: 0.28s; }
.landing-reveal-stagger.is-visible > .landing-reveal-item:nth-child(6) { transition-delay: 0.34s; }

/* ── Hero visual container ── */

.landing-hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    min-height: 15rem;
    padding: 1.25rem;
    border-radius: 1.5rem;
    border: 1px solid rgba(34, 197, 94, 0.18);
    background:
        linear-gradient(145deg, rgba(34, 197, 94, 0.1) 0%, rgba(22, 163, 74, 0.04) 45%, rgba(232, 245, 233, 0.85) 100%);
    background-size: 200% 200%;
    animation: landing-mesh-drift 18s ease-in-out infinite;
}

@media (min-width: 640px) {
    .landing-hero-visual {
        min-height: 18rem;
        padding: 2rem 2.5rem;
    }
}

.dark .landing-hero-visual {
    border-color: rgba(74, 222, 128, 0.22);
    background:
        linear-gradient(145deg, rgba(34, 197, 94, 0.14) 0%, rgba(22, 163, 74, 0.06) 45%, rgba(20, 83, 45, 0.45) 100%);
    background-size: 200% 200%;
}

.landing-hero-visual--executor {
    background:
        linear-gradient(145deg, rgba(22, 163, 74, 0.1) 0%, rgba(34, 197, 94, 0.05) 40%, rgba(232, 245, 233, 0.7) 100%);
    background-size: 200% 200%;
}

.dark .landing-hero-visual--executor {
    background:
        linear-gradient(145deg, rgba(22, 163, 74, 0.16) 0%, rgba(34, 197, 94, 0.07) 40%, rgba(20, 83, 45, 0.38) 100%);
    background-size: 200% 200%;
}

.landing-hero-visual__mesh {
    pointer-events: none;
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 75% 25%, rgba(74, 222, 128, 0.2) 0%, transparent 45%),
        radial-gradient(circle at 15% 80%, rgba(34, 197, 94, 0.15) 0%, transparent 40%);
    animation: landing-glow-breathe 8s ease-in-out infinite;
}

.landing-hero-visual__content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 28rem;
    margin-inline: auto;
}

.landing-hero-visual__svg {
    display: block;
    width: 100%;
    height: auto;
    max-height: min(18rem, 52vw);
    margin-inline: auto;
}

@media (min-width: 640px) {
    .landing-hero-visual__svg {
        max-height: 20rem;
    }
}

.landing-hero-visual__caption {
    position: relative;
    z-index: 1;
    margin-top: 1rem;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--landing-brand-dark);
}

.dark .landing-hero-visual__caption {
    color: #4ade80;
}

/* Subtle SVG layer motion — inner wrapper only; never on same node as SVG transform attribute */
.landing-hero-visual__svg .landing-drift { animation: landing-drift 7s ease-in-out infinite; }
.landing-hero-visual__svg .landing-drift-reverse { animation: landing-drift-reverse 8s ease-in-out infinite 0.4s; }
.landing-hero-visual__svg .landing-drift-slow { animation: landing-drift 9s ease-in-out infinite 0.8s; }
.landing-shimmer { animation: landing-shimmer 5s ease-in-out infinite; }

.landing-glow-ring {
    animation: landing-glow-breathe 6s ease-in-out infinite;
    transform-origin: center;
}

.landing-connect-line {
    stroke-dasharray: 120;
    stroke-dashoffset: 120;
    animation: landing-line-draw 1.8s var(--landing-ease-out) 0.6s forwards;
}

/* ── CTA micro-interactions ── */

.landing-btn-cta {
    transition:
        transform 0.2s var(--landing-ease-soft),
        box-shadow 0.2s var(--landing-ease-soft),
        background-color 0.2s ease,
        border-color 0.2s ease;
}

.landing-btn-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.22);
}

.landing-btn-cta:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.15);
}

.landing-btn-cta--ghost:hover {
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.12);
}

.landing-btn-cta--white:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}

/* ── Section elements ── */

.landing-step-connector {
    background: linear-gradient(90deg, transparent, var(--landing-brand), transparent);
    height: 2px;
    opacity: 0.25;
}

.landing-stat-card {
    transition:
        transform 0.25s var(--landing-ease-soft),
        box-shadow 0.25s var(--landing-ease-soft),
        border-color 0.25s ease;
}

.landing-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.25);
}

.landing-feature-icon {
    background: linear-gradient(135deg, #e8f5e9 0%, #dcfce7 100%);
    transition: transform 0.25s var(--landing-ease-soft);
}

.landing-feature-card:hover .landing-feature-icon {
    transform: scale(1.05);
}

.dark .landing-feature-icon {
    background: linear-gradient(135deg, rgba(20, 83, 45, 0.6) 0%, rgba(22, 101, 52, 0.4) 100%);
}

.landing-benefit-check {
    background: linear-gradient(135deg, var(--landing-brand) 0%, var(--landing-brand-dark) 100%);
}

.landing-benefit-item {
    transition:
        border-color 0.25s ease,
        box-shadow 0.25s var(--landing-ease-soft),
        transform 0.25s var(--landing-ease-soft);
}

.landing-benefit-item:hover {
    border-color: rgba(34, 197, 94, 0.25);
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.06);
}

/* CTA section ambient orbs */
.landing-cta-orb {
    animation: landing-glow-breathe 10s ease-in-out infinite;
}

.landing-cta-orb--delayed {
    animation-delay: 2s;
}

/* ── Reduced motion ── */

@media (prefers-reduced-motion: reduce) {
    .landing-hero-enter > *,
    .landing-hero-visual-enter {
        opacity: 1;
        animation: none;
        transform: none;
    }

    .landing-reveal,
    .landing-reveal-stagger > .landing-reveal-item {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .landing-hero-visual,
    .landing-hero-visual__svg .landing-drift,
    .landing-hero-visual__svg .landing-drift-reverse,
    .landing-hero-visual__svg .landing-drift-slow,
    .landing-shimmer,
    .landing-glow-ring,
    .landing-glow-breathe,
    .landing-hero-visual__mesh,
    .landing-connect-line,
    .landing-cta-orb,
    .landing-cta-orb--delayed {
        animation: none;
    }

    .landing-hero-visual__svg .landing-drift,
    .landing-hero-visual__svg .landing-drift-reverse,
    .landing-hero-visual__svg .landing-drift-slow {
        transform: none;
    }

    .landing-connect-line {
        stroke-dashoffset: 0;
    }

    .landing-btn-cta:hover,
    .landing-btn-cta:active {
        transform: none;
    }

    .landing-stat-card:hover,
    .landing-feature-card:hover .landing-feature-icon {
        transform: none;
    }
}