/* ═══════════════════════════════════════════════════════
   LENET.ai — Dark Futuristic Theme (Palantir-inspired)
   ═══════════════════════════════════════════════════════ */

/* ── Skip link (keyboard / screen reader) ── */
.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 100;
}
.skip-link:focus {
    position: fixed;
    left: 1rem;
    top: 1rem;
    width: auto;
    height: auto;
    overflow: visible;
    padding: 0.5rem 1rem;
    background: #fff;
    color: #000;
    font-weight: 600;
    border-radius: 0.5rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* ── Full-Screen Hero ── */
.hero-dark {
    background: #000;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* ── Hero Gradient Overlay ── */
.hero-gradient-overlay {
    background:
        linear-gradient(to right, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.4) 35%, rgba(0,0,0,0.1) 65%, transparent 100%),
        linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.3) 20%, transparent 40%),
        linear-gradient(to bottom, rgba(0,0,0,0.4) 0%, transparent 15%);
    pointer-events: none;
}

/* ── Scroll Indicator ── */
.scroll-indicator {
    animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 0.5; }
    50% { transform: translateY(6px); opacity: 1; }
}

/* ── Page Hero (non-fullscreen, for subpages) ── */
.hero-page {
    background: #000;
    position: relative;
    overflow: hidden;
}
.hero-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

/* ── Hero Entrance Animations ── */
.hero-entrance {
    opacity: 0;
    animation: heroFadeUp 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.hero-entrance-d1 { animation-delay: 0.12s; }
.hero-entrance-d2 { animation-delay: 0.24s; }
.hero-entrance-d3 { animation-delay: 0.40s; }
.hero-entrance-d4 { animation-delay: 0.55s; }

@keyframes heroFadeUp {
    from { opacity: 0; transform: translateY(32px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Card Hover (dark variant with blue glow) ── */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.card-hover:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.12), 0 8px 32px rgba(0, 0, 0, 0.4);
    border-color: rgba(37, 99, 235, 0.3);
}

/* ── Glass Card ── */
.glass-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* ── Team Photos ── */
.team-photo {
    filter: grayscale(100%);
}

/* ── Assessment Progress Bar ── */
.progress-fill {
    transition: width 0.4s ease;
}

/* ── Assessment Step Entrance ── */
.step-enter {
    animation: fadeSlideIn 0.3s ease forwards;
}

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Plan Step Connector ── */
.plan-connector {
    position: relative;
}
@media (max-width: 767px) {
    .plan-connector::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: -1.5rem;
        width: 1px;
        height: 1.5rem;
        background: linear-gradient(to bottom, rgba(37, 99, 235, 0.4), transparent);
    }
}
@media (min-width: 768px) {
    .plan-connector::after {
        content: '';
        position: absolute;
        top: 2rem;
        right: -1rem;
        width: 2rem;
        height: 1px;
        background: linear-gradient(to right, rgba(37, 99, 235, 0.5), transparent);
    }
}
.plan-connector:last-child::after {
    display: none;
}

/* ── Stat Number Glow ── */
.stat-glow {
    text-shadow: 0 0 20px rgba(96, 165, 250, 0.55), 0 0 40px rgba(37, 99, 235, 0.25);
}

/* ── Stat Card Accent ── */
.stat-card {
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #2563eb, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.stat-card:hover::before {
    opacity: 1;
}

/* ── Typewriter Cursor ── */
[data-typewriter]::after {
    content: '|';
    animation: blink 0.8s step-end infinite;
    color: #2563eb;
}
@keyframes blink {
    50% { opacity: 0; }
}

/* ── Animated Progress Bars ── */
[data-progress] {
    transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Image Treatment (dark) ── */
.img-float {
    border-radius: 1rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(37, 99, 235, 0.08);
}

/* ── Gradient Text with Shimmer ── */
.gradient-text {
    background: linear-gradient(
        135deg,
        #60a5fa 0%, #2563eb 40%, #93c5fd 60%, #60a5fa 100%
    );
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 6s ease-in-out infinite;
    transform: translateZ(0);
    backface-visibility: hidden;
}
@keyframes shimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
@media (prefers-reduced-motion: reduce) {
    .gradient-text {
        animation: none;
        background-position: 0% 50%;
    }
}

/* ── Subtle Grid Background ── */
.bg-grid {
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 64px 64px;
}

/* ── Glow Accent on section headers ── */
.glow-accent {
    position: relative;
}
.glow-accent::after {
    content: '';
    display: block;
    width: 48px;
    height: 2px;
    background: #2563eb;
    margin-top: 1rem;
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.5);
}
.glow-accent-center::after {
    margin-left: auto;
    margin-right: auto;
}

/* ── Divider Line ── */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
}

/* ── Form inputs (dark) ── */
input[type="text"],
input[type="email"],
textarea,
select {
    background: rgba(255, 255, 255, 0.04) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    color: #f1f5f9 !important;
}
input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
    border-color: #2563eb !important;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2) !important;
    outline: none !important;
}
input::placeholder,
textarea::placeholder {
    color: rgba(255,255,255,0.25) !important;
}

/* ── Page Load Fade-In ── */
body {
    animation: pageIn 0.5s ease-out;
}
@keyframes pageIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ── Scroll offset for fixed nav: matches h-20 (5rem) / h-24 (6rem) + hairline ── */
[id] {
    scroll-margin-top: 5.25rem;
}
@media (min-width: 1024px) {
    [id] {
        scroll-margin-top: 6.5rem;
    }
}

/* ── Nav transitions (controlled by JS) ── */
.nav-transparent {
    background: transparent !important;
    border-color: transparent !important;
}
.nav-solid {
    background: rgba(0, 0, 0, 0.8) !important;
    border-color: rgba(255, 255, 255, 0.05) !important;
}

/* ── Subtle pulse on hero CTA ── */
.cta-glow {
    position: relative;
}
.cta-glow::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), transparent, rgba(37, 99, 235, 0.3));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.cta-glow:hover::after {
    opacity: 1;
}