/* ==========================================================================
   NEEDIBI SERVE — PUBLIC DESIGN SYSTEM
   Single source of truth for the public website (marketing + needer + auth).
   Premium, mobile-first, conversion-focused. Brand blue #3551A1 + gold #F5B042.
   Typography reference: Inter weight hierarchy (300/400/500/600/700).
   All component classes are namespaced "ns-" to avoid clashing with Tailwind.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
    /* Font */
    --ns-font: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Weights — real hierarchy (the heart of the typographic system) */
    --ns-light: 300;
    --ns-regular: 400;
    --ns-medium: 500;
    --ns-semibold: 600;
    --ns-bold: 700;

    /* Brand colors — unified to the splash blue (bright, modern) */
    --ns-blue: #2058e6;
    --ns-blue-dark: #1e46c8;
    --ns-blue-soft: #eaf0ff;
    --ns-blue-tint: #f4f8ff;
    --ns-gold: #F5B042;
    --ns-gold-dark: #e09a2c;
    --ns-gold-soft: #fef6e7;

    /* Text hierarchy */
    --ns-ink: #0f172a;        /* primary high-contrast headings */
    --ns-ink-2: #334155;      /* strong body */
    --ns-muted: #64748b;      /* secondary supportive text */
    --ns-muted-2: #94a3b8;    /* tertiary / hints */
    --ns-on-dark: #e2e8f0;    /* text on dark surfaces */

    /* Surfaces */
    --ns-bg: #ffffff;
    --ns-bg-soft: #f8fafc;
    --ns-bg-tint: #f1f5f9;
    --ns-surface: #ffffff;
    --ns-dark: #0b1220;
    --ns-dark-2: #111c33;
    --ns-border: #e2e8f0;
    --ns-border-strong: #cbd5e1;

    /* Feedback */
    --ns-success: #16a34a;
    --ns-success-soft: #dcfce7;
    --ns-warning: #d97706;
    --ns-warning-soft: #fef3c7;
    --ns-danger: #dc2626;
    --ns-danger-soft: #fee2e2;

    /* Type scale (fluid, mobile-first) */
    --ns-fs-display: clamp(2.25rem, 6vw, 3.5rem);
    --ns-fs-h1: clamp(1.9rem, 4.5vw, 2.85rem);
    --ns-fs-h2: clamp(1.5rem, 3vw, 2.1rem);
    --ns-fs-h3: clamp(1.2rem, 2vw, 1.5rem);
    --ns-fs-h4: 1.15rem;
    --ns-fs-lead: clamp(1.05rem, 1.6vw, 1.2rem);
    --ns-fs-body: 1rem;
    --ns-fs-sm: 0.9rem;
    --ns-fs-xs: 0.8rem;

    /* Line heights */
    --ns-lh-tight: 1.12;
    --ns-lh-snug: 1.3;
    --ns-lh-body: 1.65;

    /* Spacing scale */
    --ns-space-1: 0.25rem;
    --ns-space-2: 0.5rem;
    --ns-space-3: 0.75rem;
    --ns-space-4: 1rem;
    --ns-space-5: 1.5rem;
    --ns-space-6: 2rem;
    --ns-space-7: 3rem;
    --ns-space-8: 4rem;
    --ns-space-9: 5rem;
    --ns-space-10: 6rem;

    /* Radii */
    --ns-radius-sm: 8px;
    --ns-radius: 12px;
    --ns-radius-lg: 16px;
    --ns-radius-xl: 24px;
    --ns-radius-pill: 999px;

    /* Shadows (soft, premium) */
    --ns-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
    --ns-shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
    --ns-shadow: 0 8px 24px -12px rgba(15, 23, 42, 0.18);
    --ns-shadow-lg: 0 24px 48px -20px rgba(15, 23, 42, 0.25);
    --ns-shadow-blue: 0 12px 28px -10px rgba(32, 88, 230, 0.4);
    --ns-shadow-gold: 0 12px 28px -10px rgba(245, 176, 66, 0.45);

    /* Layout */
    --ns-container: 1200px;
    --ns-container-wide: 1280px;
    --ns-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   2. BASE TYPOGRAPHY (public site only — admin keeps its own #main-content rules)
   -------------------------------------------------------------------------- */
body {
    font-family: var(--ns-font);
    color: var(--ns-ink);
    font-weight: var(--ns-regular);
    line-height: var(--ns-lh-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

.ns-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--ns-fs-sm);
    font-weight: var(--ns-semibold);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ns-blue);
}

.ns-display,
.ns-h1,
.ns-h2,
.ns-h3 {
    font-family: var(--ns-font);
    color: var(--ns-ink);
    margin: 0;
}

.ns-display {
    font-size: var(--ns-fs-display);
    font-weight: var(--ns-bold);
    line-height: var(--ns-lh-tight);
    letter-spacing: -0.025em;
}

.ns-h1 {
    font-size: var(--ns-fs-h1);
    font-weight: var(--ns-bold);
    line-height: var(--ns-lh-tight);
    letter-spacing: -0.02em;
}

.ns-h2 {
    font-size: var(--ns-fs-h2);
    font-weight: var(--ns-semibold);
    line-height: var(--ns-lh-snug);
    letter-spacing: -0.015em;
}

.ns-h3 {
    font-size: var(--ns-fs-h3);
    font-weight: var(--ns-semibold);
    line-height: var(--ns-lh-snug);
    letter-spacing: -0.01em;
}

.ns-lead {
    font-size: var(--ns-fs-lead);
    font-weight: var(--ns-regular);
    line-height: 1.6;
    color: var(--ns-muted);
}

.ns-body { font-size: var(--ns-fs-body); color: var(--ns-ink-2); }
.ns-muted { color: var(--ns-muted); }
.ns-small { font-size: var(--ns-fs-sm); }

.ns-gradient-text {
    background: linear-gradient(120deg, var(--ns-blue) 0%, var(--ns-gold) 130%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

/* --------------------------------------------------------------------------
   3. LAYOUT — sections & container with cinematic rhythm
   -------------------------------------------------------------------------- */
.ns-section {
    padding-top: var(--ns-space-7);
    padding-bottom: var(--ns-space-7);
}
@media (min-width: 768px) {
    .ns-section { padding-top: var(--ns-space-9); padding-bottom: var(--ns-space-9); }
}
.ns-section-lg { padding-top: var(--ns-space-8); padding-bottom: var(--ns-space-8); }
@media (min-width: 768px) {
    .ns-section-lg { padding-top: var(--ns-space-10); padding-bottom: var(--ns-space-10); }
}
.ns-section-soft { background: var(--ns-bg-soft); }
.ns-section-tint { background: var(--ns-blue-tint); }

.ns-container {
    width: 100%;
    max-width: var(--ns-container);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}
@media (min-width: 768px) {
    .ns-container { padding-left: 2rem; padding-right: 2rem; }
}

/* Section header block: eyebrow → heading → lead, centered breathing room */
.ns-section-head {
    max-width: 720px;
    margin: 0 auto var(--ns-space-6);
    text-align: center;
}
.ns-section-head .ns-lead { margin-top: 0.85rem; }

/* --------------------------------------------------------------------------
   4. BUTTONS — normalized hierarchy & sizing
   -------------------------------------------------------------------------- */
.ns-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--ns-font);
    font-size: var(--ns-fs-body);
    font-weight: var(--ns-semibold);
    line-height: 1;
    padding: 0.85rem 1.6rem;
    border-radius: var(--ns-radius-pill);
    border: 1.5px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.2s var(--ns-ease), background-color 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
    white-space: nowrap;
}
.ns-btn:active { transform: translateY(1px); }
.ns-btn-lg { padding: 1rem 2rem; font-size: 1.05rem; }
.ns-btn-sm { padding: 0.6rem 1.1rem; font-size: var(--ns-fs-sm); }
.ns-btn-block { width: 100%; }

.ns-btn-primary {
    background: var(--ns-blue);
    color: #fff;
    box-shadow: var(--ns-shadow-blue);
}
.ns-btn-primary:hover { background: var(--ns-blue-dark); transform: translateY(-2px); color: #fff; }

.ns-btn-gold {
    background: var(--ns-gold);
    color: var(--ns-ink);
    box-shadow: var(--ns-shadow-gold);
}
.ns-btn-gold:hover { background: var(--ns-gold-dark); transform: translateY(-2px); color: var(--ns-ink); }

.ns-btn-outline {
    background: transparent;
    color: var(--ns-blue);
    border-color: var(--ns-blue);
}
.ns-btn-outline:hover { background: var(--ns-blue); color: #fff; }

.ns-btn-ghost {
    background: var(--ns-bg-soft);
    color: var(--ns-ink-2);
    border-color: var(--ns-border);
}
.ns-btn-ghost:hover { background: var(--ns-bg-tint); }

.ns-btn-white {
    background: #fff;
    color: var(--ns-blue);
}
.ns-btn-white:hover { background: var(--ns-blue-soft); transform: translateY(-2px); }

/* --------------------------------------------------------------------------
   5. CARDS
   -------------------------------------------------------------------------- */
.ns-card {
    background: var(--ns-surface);
    border: 1px solid var(--ns-border);
    border-radius: var(--ns-radius-lg);
    box-shadow: var(--ns-shadow-sm);
    transition: transform 0.3s var(--ns-ease), box-shadow 0.3s ease, border-color 0.3s ease;
}
.ns-card-pad { padding: var(--ns-space-5); }
.ns-card-hover:hover {
    transform: translateY(-6px);
    box-shadow: var(--ns-shadow);
    border-color: rgba(32, 88, 230, 0.35);
}
.ns-card-feature {
    background: linear-gradient(160deg, var(--ns-blue-tint), #fff 60%);
    border-color: rgba(32, 88, 230, 0.12);
}

/* Icon badge used on feature cards */
.ns-icon-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: var(--ns-radius);
    background: var(--ns-blue-soft);
    color: var(--ns-blue);
    font-size: 1.25rem;
}
.ns-icon-badge-gold { background: var(--ns-gold-soft); color: var(--ns-gold-dark); }

/* --------------------------------------------------------------------------
   6. BADGES / CHIPS / PILLS
   -------------------------------------------------------------------------- */
.ns-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.8rem;
    border-radius: var(--ns-radius-pill);
    font-size: var(--ns-fs-sm);
    font-weight: var(--ns-semibold);
    line-height: 1;
}
.ns-badge-blue { background: var(--ns-blue-soft); color: var(--ns-blue); }
.ns-badge-gold { background: var(--ns-gold-soft); color: var(--ns-gold-dark); }
.ns-badge-success { background: var(--ns-success-soft); color: var(--ns-success); }
.ns-badge-neutral { background: var(--ns-bg-tint); color: var(--ns-ink-2); }

.ns-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border-radius: var(--ns-radius-pill);
    background: var(--ns-bg-soft);
    border: 1px solid var(--ns-border);
    font-size: var(--ns-fs-sm);
    font-weight: var(--ns-medium);
    color: var(--ns-ink-2);
    cursor: pointer;
    transition: all 0.2s ease;
}
.ns-chip:hover { border-color: var(--ns-blue); color: var(--ns-blue); }
.ns-chip.is-active { background: var(--ns-blue); color: #fff; border-color: var(--ns-blue); }

/* --------------------------------------------------------------------------
   7. TRUST / SOCIAL PROOF / STATS
   -------------------------------------------------------------------------- */
.ns-trust-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 1rem 2rem;
    color: var(--ns-muted);
    font-size: var(--ns-fs-sm);
    font-weight: var(--ns-medium);
}
.ns-trust-row i { color: var(--ns-blue); }

.ns-stat-number {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: var(--ns-bold);
    line-height: 1;
    color: var(--ns-blue);
    letter-spacing: -0.02em;
}
.ns-stat-label {
    margin-top: 0.4rem;
    font-size: var(--ns-fs-sm);
    color: var(--ns-muted);
    font-weight: var(--ns-medium);
}

/* --------------------------------------------------------------------------
   8. DIVIDERS
   -------------------------------------------------------------------------- */
.ns-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    padding: var(--ns-space-4) 0;
}
.ns-divider-line {
    height: 2px;
    flex: 1;
    max-width: 200px;
    background: linear-gradient(90deg, transparent, var(--ns-border-strong));
    border-radius: var(--ns-radius-pill);
}
.ns-divider-line:last-child { background: linear-gradient(270deg, transparent, var(--ns-border-strong)); }
.ns-divider-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ns-gold); }

/* --------------------------------------------------------------------------
   9. FORMS (public-facing)
   -------------------------------------------------------------------------- */
.ns-label {
    display: block;
    font-size: var(--ns-fs-sm);
    font-weight: var(--ns-semibold);
    color: var(--ns-ink-2);
    margin-bottom: 0.4rem;
}
.ns-input,
.ns-textarea,
.ns-select {
    width: 100%;
    min-height: 46px;
    padding: 0.7rem 0.95rem;
    font-family: var(--ns-font);
    font-size: var(--ns-fs-body);
    color: var(--ns-ink);
    background: #fff;
    border: 1.5px solid var(--ns-border);
    border-radius: var(--ns-radius-sm);
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.ns-textarea { min-height: 120px; resize: vertical; }
.ns-input:focus,
.ns-textarea:focus,
.ns-select:focus {
    outline: none;
    border-color: var(--ns-blue);
    box-shadow: 0 0 0 3px rgba(32, 88, 230, 0.14);
}
.ns-input::placeholder, .ns-textarea::placeholder { color: var(--ns-muted-2); font-weight: var(--ns-regular); }

/* --------------------------------------------------------------------------
   10. ACCESSIBILITY — focus visibility
   -------------------------------------------------------------------------- */
.ns-btn:focus-visible,
.ns-chip:focus-visible,
a.ns-link:focus-visible {
    outline: 3px solid rgba(32, 88, 230, 0.45);
    outline-offset: 2px;
}
.ns-link { color: var(--ns-blue); font-weight: var(--ns-medium); text-decoration: none; }
.ns-link:hover { text-decoration: underline; }

/* Skip-to-content helper */
.ns-skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    z-index: 2000;
    background: var(--ns-blue);
    color: #fff;
    padding: 0.75rem 1.25rem;
    border-radius: 0 0 var(--ns-radius-sm) 0;
    font-weight: var(--ns-semibold);
}
.ns-skip-link:focus { left: 0; }

/* --------------------------------------------------------------------------
   11. UTILITIES & MOTION
   -------------------------------------------------------------------------- */
.ns-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ns-ease), transform 0.7s var(--ns-ease);
}
.ns-reveal.is-visible { opacity: 1; transform: none; }

.ns-grid { display: grid; gap: var(--ns-space-5); }
.ns-grid-2 { grid-template-columns: 1fr; }
.ns-grid-3 { grid-template-columns: 1fr; }
.ns-grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 640px) {
    .ns-grid-2 { grid-template-columns: repeat(2, 1fr); }
    .ns-grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .ns-grid-3 { grid-template-columns: repeat(3, 1fr); }
    .ns-grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.ns-cta-band {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #2f6bf6 0%, #2058e6 55%, #1e46c8 100%);
    color: #fff;
    border-radius: 28px;
    padding: clamp(2.25rem, 4vw, 3.5rem);
    box-shadow: 0 30px 70px -30px rgba(32, 88, 230, 0.55);
}
/* soft decorative light in the corner, like the reference */
.ns-cta-band::after {
    content: "";
    position: absolute;
    top: -30%;
    right: -10%;
    width: 60%;
    height: 160%;
    background: radial-gradient(circle, rgba(255,255,255,0.16), transparent 62%);
    pointer-events: none;
}
.ns-cta-band > * { position: relative; z-index: 1; }
.ns-cta-band .ns-h2, .ns-cta-band .ns-display { color: #fff; }
.ns-cta-band p { color: rgba(255, 255, 255, 0.85); }

/* two-column CTA layout (text left, app card right) */
.ns-cta-grid {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: center;
    text-align: left;
}
@media (max-width: 860px) {
    .ns-cta-grid { grid-template-columns: 1fr; text-align: left; }
}
.ns-cta-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.22);
    color: #fff;
    font-weight: 700;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
}
.ns-cta-pill i { color: var(--ns-gold); }
.ns-app-card {
    background: rgba(255,255,255,0.10);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 22px;
    padding: 1.6rem;
    backdrop-filter: blur(6px);
}
.ns-app-card-head { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.25rem; }
.ns-app-card-head .ns-play {
    width: 34px; height: 34px; flex: 0 0 auto;
    border: 2px solid var(--ns-gold); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--ns-gold);
}
.ns-app-card-head strong { display: block; color: #fff; font-size: 1.02rem; line-height: 1.2; }
.ns-app-card-head span { color: rgba(255,255,255,0.72); font-size: 0.85rem; }
.ns-store-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
@media (max-width: 420px) { .ns-store-grid { grid-template-columns: 1fr; } }
.ns-store-btn {
    display: flex; align-items: center; gap: 0.65rem;
    background: rgba(255,255,255,0.12); color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 14px; padding: 0.7rem 0.9rem;
    text-decoration: none; transition: transform .2s ease, background .2s ease;
}
.ns-store-btn:hover { transform: translateY(-2px); background: rgba(255,255,255,0.22); }
.ns-store-btn .ns-store-ic {
    width: 30px; height: 30px; flex: 0 0 auto;
    background: var(--ns-gold); border-radius: 50%;
    display: flex; align-items: center; justify-content: center; color: #0b1220;
}
.ns-store-btn small { display: block; font-size: 0.62rem; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.7); }
.ns-store-btn b { display: block; font-size: 0.95rem; font-weight: 700; line-height: 1.1; }

@media (prefers-reduced-motion: reduce) {
    .ns-reveal { transition: none; opacity: 1; transform: none; }
    .ns-btn, .ns-card { transition: none; }
}