/* Sira Pay landing — v5 premium */

:root {
    --font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --blue-950: #020617;
    --blue-900: #0a1628;
    --blue-800: #0f2847;
    --blue-700: #1e3a8a;
    --blue-600: #2563eb;
    --blue-500: #3b82f6;
    --blue-400: #60a5fa;
    --blue-300: #93c5fd;
    --blue-100: #dbeafe;
    --blue-50: #eff6ff;
    --green: #10b981;
    --green-soft: rgba(16, 185, 129, 0.15);

    --bg: #f4f7fc;
    --surface: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #dce5f2;
    --accent: var(--blue-700);
    --accent-hover: #1e40af;
    --accent-soft: rgba(37, 99, 235, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.72);
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
    --radius: 16px;
    --radius-sm: 12px;
    --container: 1160px;
    --popular-label: 'Популярный';
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
    --bg: var(--blue-950);
    --surface: #0c1829;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --border: #1e3a5f;
    --accent-soft: rgba(59, 130, 246, 0.15);
    --nav-bg: rgba(2, 6, 23, 0.82);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, 0.45);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.landing-body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ── Scroll reveal ── */
.sp-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.sp-reveal-delay { transition-delay: 0.12s; }

/* ── Nav ── */
.landing-nav {
    position: sticky;
    top: 0;
    z-index: 200;
    background: var(--nav-bg);
    backdrop-filter: blur(20px) saturate(1.4);
    border-bottom: 1px solid transparent;
    transition: border-color 0.25s, box-shadow 0.25s;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
}

.landing-nav.is-scrolled {
    border-color: var(--border);
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
}

.landing-nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0.875rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    min-width: 0;
}

.landing-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex-shrink: 0;
    color: var(--text);
    min-width: 0;
}

.brand-logo-link {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    line-height: 0;
}

.brand-logo-nav {
    display: block;
    height: 38px;
    width: auto;
    max-width: min(168px, 42vw);
    object-fit: contain;
}

[data-theme="dark"] .brand-logo-nav {
    filter: brightness(1.08);
}

.landing-logo-mark,
.landing-logo-text {
    display: none;
}

.landing-nav-links {
    display: flex;
    align-items: center;
    gap: 0.125rem;
    flex: 1;
    justify-content: center;
}

.landing-nav-link {
    color: var(--muted);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 0.8rem;
    border-radius: 10px;
    transition: color 0.2s, background 0.2s;
}

.landing-nav-link:hover {
    color: var(--text);
    background: var(--accent-soft);
}

.landing-nav-link.is-active {
    color: var(--blue-600);
    background: var(--accent-soft);
    font-weight: 600;
}

.landing-nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
    min-width: 0;
}

.lang-switch-btn,
.theme-toggle,
.nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    height: 40px;
    min-width: 40px;
    padding: 0 0.65rem;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--surface);
    color: var(--muted);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.lang-switch-btn:hover,
.theme-toggle:hover,
.nav-toggle:hover {
    color: var(--text);
    border-color: var(--blue-500);
}

.lang-chevron { font-size: 0.65rem; opacity: 0.6; }

.lang-menu {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.35rem;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
}

.lang-menu .dropdown-item {
    border-radius: 8px;
    font-size: 0.875rem;
    color: var(--text);
}

.lang-menu .dropdown-item.active {
    background: var(--accent-soft);
    color: var(--accent);
}

.btn-sp-primary {
    background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
    color: #fff !important;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.625rem 1.2rem;
    border-radius: 11px;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    border: none;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-sp-primary:hover {
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

.landing-mobile-nav {
    border-color: var(--border) !important;
    background: var(--surface);
}

.landing-mobile-nav .landing-nav-link {
    display: block;
    padding: 0.75rem;
    font-size: 0.9375rem;
}

.landing-mobile-cta {
    margin-top: 0.5rem;
    text-align: center;
    font-weight: 700;
    color: #fff !important;
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

.landing-mobile-cta:hover {
    background: linear-gradient(135deg, var(--blue-400), var(--blue-500));
    color: #fff !important;
}

.nav-toggle {
    border: none;
    background: var(--surface);
}

/* ── Hero ── */
.sp-hero {
    position: relative;
    color: #fff;
    padding: 3.5rem 1.25rem 2.5rem;
    overflow: hidden;
    min-height: min(92vh, 880px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sp-hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(155deg, #010409 0%, var(--blue-950) 25%, var(--blue-900) 55%, #0d2d5c 100%);
    z-index: 0;
}

.sp-hero-grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 20%, transparent 75%);
}

.sp-hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    animation: heroFloat 8s ease-in-out infinite;
}

.sp-hero-glow-1 {
    width: 420px;
    height: 420px;
    background: rgba(37, 99, 235, 0.35);
    top: -10%;
    right: 5%;
}

.sp-hero-glow-2 {
    width: 320px;
    height: 320px;
    background: rgba(96, 165, 250, 0.2);
    bottom: 10%;
    left: -5%;
    animation-delay: -3s;
}

.sp-hero-glow-3 {
    width: 200px;
    height: 200px;
    background: rgba(16, 185, 129, 0.15);
    top: 40%;
    left: 35%;
    animation-delay: -5s;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(12px, -18px) scale(1.05); }
}

.sp-hero-layout {
    position: relative;
    z-index: 1;
    max-width: var(--container);
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.sp-hero-copy { text-align: left; }

.sp-hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.45rem 1rem 0.45rem 0.75rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}

.sp-hero-tag-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 12px var(--green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.85); }
}

.sp-hero-tag i { color: var(--blue-300); }

.sp-hero-title {
    font-size: clamp(2.25rem, 4.5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1.05;
    margin: 0 0 1.25rem;
}

.sp-hero-title em {
    font-style: normal;
    background: linear-gradient(135deg, var(--blue-300) 0%, #a5d8ff 50%, var(--blue-400) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sp-hero-lead {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.75;
    max-width: 520px;
    margin: 0 0 2rem;
}

.sp-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.25rem;
}

.btn-sp-hero {
    background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
    color: #fff !important;
    font-weight: 700;
    font-size: 0.9375rem;
    padding: 0.9rem 1.5rem;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 8px 28px rgba(37, 99, 235, 0.45);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-sp-hero:hover {
    color: #fff !important;
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(37, 99, 235, 0.5);
}

.btn-sp-hero-outline {
    background: rgba(255, 255, 255, 0.06);
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.22);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.9rem 1.35rem;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(8px);
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.btn-sp-hero-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.4);
    color: #fff !important;
    transform: translateY(-2px);
}

.sp-hero-metrics {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.sp-metric-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 0.35rem;
    background: linear-gradient(180deg, #fff 0%, rgba(255,255,255,0.75) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sp-metric-label {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.55);
    font-weight: 500;
}

/* Hero showcase mockups */
.sp-hero-showcase {
    position: relative;
    min-height: 420px;
}

.sp-showcase-glow {
    position: absolute;
    inset: 10% 5%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.25), transparent 70%);
    filter: blur(40px);
    pointer-events: none;
}

.sp-mock {
    position: absolute;
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.sp-mock-api {
    top: 0;
    left: 0;
    right: 12%;
    animation: mockFloat1 6s ease-in-out infinite;
}

.sp-mock-qr {
    top: 38%;
    right: 0;
    width: 58%;
    padding: 1rem;
    animation: mockFloat2 7s ease-in-out infinite;
}

.sp-mock-webhook {
    bottom: 0;
    left: 8%;
    right: 28%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    animation: mockFloat3 5.5s ease-in-out infinite;
}

@keyframes mockFloat1 {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes mockFloat2 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(0.5deg); }
}

@keyframes mockFloat3 {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.sp-mock-bar {
    display: flex;
    gap: 6px;
    padding: 0.65rem 0.875rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sp-mock-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
}

.sp-mock-dot:first-child { background: #ff5f57; }
.sp-mock-dot:nth-child(2) { background: #febc2e; }
.sp-mock-dot:nth-child(3) { background: #28c840; }

.sp-mock-body { padding: 1rem 1.125rem 1.125rem; }

.sp-mock-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--blue-300);
    margin-bottom: 0.5rem;
    font-family: ui-monospace, monospace;
}

.sp-mock-code {
    margin: 0;
    font-size: 0.72rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.78);
    font-family: ui-monospace, 'SF Mono', monospace;
    white-space: pre-wrap;
}

.sp-mock-qr-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 700;
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
}

.sp-mock-qr-head i { color: var(--blue-300); font-size: 1.25rem; }

.sp-mock-qr-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    margin-bottom: 0.75rem;
}

.sp-mock-qr-grid span {
    aspect-ratio: 1;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.9);
}

.sp-mock-qr-grid span:nth-child(even) { background: transparent; border: 1px solid rgba(255,255,255,0.2); }

.sp-mock-qr-status {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--green);
}

.sp-mock-webhook-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--green-soft);
    color: var(--green);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sp-mock-webhook-event {
    font-weight: 700;
    font-size: 0.875rem;
    font-family: ui-monospace, monospace;
}

.sp-mock-webhook-meta {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.sp-hero-trust {
    position: relative;
    z-index: 1;
    max-width: var(--container);
    margin: 2.5rem auto 0;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    justify-content: center;
}

.sp-trust-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.9rem;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.sp-trust-chip i { color: var(--blue-300); font-size: 0.9rem; }

/* ── Sections ── */
.sp-section {
    padding: 5rem 1.25rem;
    position: relative;
}

.sp-section-inner {
    max-width: var(--container);
    margin: 0 auto;
}

.sp-section-head {
    max-width: 680px;
    margin: 0 auto 2.75rem;
}

.sp-section-head.text-center { text-align: center; }

.sp-section-alt {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.sp-section-cta { padding-top: 2rem; padding-bottom: 5rem; }

.sp-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--blue-600);
    margin-bottom: 0.75rem;
    padding: 0.3rem 0.75rem;
    background: var(--accent-soft);
    border-radius: 100px;
}

.sp-heading {
    font-size: clamp(1.75rem, 3.5vw, 2.375rem);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.12;
    margin: 0 0 1rem;
}

.sp-desc {
    color: var(--muted);
    font-size: 1.0625rem;
    max-width: 600px;
    line-height: 1.75;
    margin: 0;
}

.sp-desc-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.text-center { text-align: center; }

/* Compare */
.sp-compare {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
}

.sp-compare-card {
    border-radius: var(--radius);
    padding: 2rem;
    border: 1px solid var(--border);
    background: var(--surface);
    transition: transform 0.25s, box-shadow 0.25s;
    position: relative;
    overflow: hidden;
}

.sp-compare-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--border);
}

.sp-compare-card.positive::before {
    background: linear-gradient(90deg, var(--blue-600), var(--blue-400));
}

.sp-compare-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.sp-compare-card.positive {
    background: linear-gradient(160deg, var(--accent-soft) 0%, var(--surface) 100%);
    border-color: rgba(37, 99, 235, 0.25);
}

.sp-compare-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.sp-compare-icon.negative {
    background: rgba(100, 116, 139, 0.12);
    color: var(--muted);
}

.sp-compare-icon.positive {
    background: var(--accent-soft);
    color: var(--blue-600);
}

.sp-compare-tag {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}

.sp-compare-tag.negative { color: var(--muted); }
.sp-compare-tag.positive { color: var(--blue-600); }

.sp-compare-card p {
    color: var(--muted);
    margin: 0;
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Timeline */
.sp-timeline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
    position: relative;
}

.sp-timeline::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--border), var(--blue-500), var(--border), transparent);
    z-index: 0;
}

.sp-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.sp-step-num {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: var(--surface);
    border: 2px solid var(--blue-600);
    color: var(--blue-600);
    font-size: 1.375rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.125rem;
    box-shadow: var(--shadow);
    transition: transform 0.25s, background 0.25s;
}

.sp-step:hover .sp-step-num {
    transform: scale(1.08);
    background: var(--accent-soft);
}

.sp-step-title {
    font-weight: 700;
    font-size: 0.9375rem;
    margin-bottom: 0.375rem;
}

.sp-step-desc {
    font-size: 0.8125rem;
    color: var(--muted);
    line-height: 1.55;
    margin: 0;
}

/* Features — apipay-style grid */
.sp-section-features {
    background: var(--bg-alt, #f8fafc);
}

[data-theme="dark"] .sp-section-features {
    background: rgba(255, 255, 255, 0.02);
}

.sp-features-title {
    text-align: center;
    font-weight: 800;
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.02em;
    margin: 0 0 2.5rem;
    color: var(--text);
}

.sp-features-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.sp-feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.75rem 1.75rem 1.625rem;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 4px 16px rgba(15, 23, 42, 0.04);
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    position: relative;
    height: 100%;
}

.sp-feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
    border-color: rgba(37, 99, 235, 0.25);
}

.sp-feature-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.sp-feature-card-link:hover { color: inherit; }

.sp-feature-card-icon {
    color: var(--blue-600);
    font-size: 1.625rem;
    line-height: 1;
    margin-bottom: 1.125rem;
}

.sp-feature-card h3 {
    font-weight: 700;
    font-size: 1.0625rem;
    margin: 0 0 0.625rem;
    color: var(--text);
}

.sp-feature-card p {
    font-size: 0.875rem;
    color: var(--muted);
    line-height: 1.6;
    margin: 0;
}

.sp-feature-card-arrow {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: var(--accent-soft);
    color: var(--blue-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    transition: transform 0.2s;
}

.sp-feature-card-link:hover .sp-feature-card-arrow { transform: translate(2px, -2px); }

/* Legacy feature classes (kept for compatibility) */
.sp-features {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.sp-feature {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    position: relative;
}

.sp-section-alt .sp-feature { background: var(--bg); }

.sp-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.3);
}

.sp-feature-link {
    display: block;
    cursor: pointer;
    background: linear-gradient(160deg, rgba(37, 99, 235, 0.08) 0%, var(--surface) 100%);
    border-color: rgba(37, 99, 235, 0.2);
}

.sp-feature-link:hover { border-color: var(--blue-500); }

.sp-feature-arrow {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--accent-soft);
    color: var(--blue-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    transition: transform 0.2s;
}

.sp-feature-link:hover .sp-feature-arrow { transform: translate(2px, -2px); }

.sp-feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent-soft), rgba(59, 130, 246, 0.05));
    color: var(--blue-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: 1.125rem;
}

.sp-feature h5 {
    font-weight: 700;
    font-size: 1.025rem;
    margin: 0 0 0.5rem;
}

.sp-feature p {
    font-size: 0.875rem;
    color: var(--muted);
    margin: 0;
    line-height: 1.6;
}

/* Pricing — apipay-style cards */
.sp-section-pricing {
    background: var(--surface);
    border-top: 1px solid var(--border);
}

.sp-pricing-head {
    max-width: 720px;
    margin: 0 auto 2.75rem;
}

.sp-pricing-title {
    font-size: clamp(1.875rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin: 0 0 0.875rem;
    color: var(--text);
}

.sp-pricing-subtitle {
    margin: 0;
    color: var(--muted);
    font-size: 1.0625rem;
    line-height: 1.65;
}

.sp-pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
    align-items: stretch;
}

.sp-plan-card {
    position: relative;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.75rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
}

.sp-plan-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.sp-plan-card.is-featured {
    border-color: rgba(37, 99, 235, 0.45);
    box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2), var(--shadow-lg);
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.04) 0%, var(--bg) 28%);
}

.sp-plan-popular {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--blue-900);
    color: #fff;
    font-size: 0.6875rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    padding: 0.35rem 1rem;
    border-radius: 100px;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
}

.sp-plan-card-head {
    margin-bottom: 1.125rem;
}

.sp-plan-tier {
    font-size: 0.8125rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.sp-plan-card.is-featured .sp-plan-tier {
    color: var(--blue-700);
}

.sp-plan-price-row {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
    margin-bottom: 0.25rem;
}

.sp-plan-amount {
    font-size: clamp(1.75rem, 3vw, 2.125rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1;
    color: var(--text);
}

.sp-plan-billing {
    font-size: 0.8125rem;
    color: var(--muted);
}

.sp-plan-limit-box {
    background: rgba(37, 99, 235, 0.08);
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: 12px;
    padding: 0.75rem 0.875rem;
    margin-bottom: 1rem;
    font-size: 0.8125rem;
    line-height: 1.45;
}

.sp-plan-limit-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.2rem;
}

.sp-plan-limit-value {
    font-weight: 700;
    color: var(--text);
}

.sp-plan-trial {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
}

.sp-plan-trial-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
    flex-shrink: 0;
}

.sp-plan-features {
    list-style: none;
    margin: 0 0 1.5rem;
    padding: 0;
    flex-grow: 1;
}

.sp-plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text);
    margin-bottom: 0.625rem;
}

.sp-plan-features li:last-child { margin-bottom: 0; }

.sp-plan-features i {
    color: var(--blue-600);
    font-size: 1rem;
    line-height: 1.35;
    flex-shrink: 0;
}

.sp-plan-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    font-size: 0.9375rem;
    font-weight: 700;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.sp-plan-btn-outline {
    background: var(--surface);
    color: var(--text) !important;
    border: 1.5px solid var(--border);
}

.sp-plan-btn-outline:hover {
    border-color: var(--blue-500);
    color: var(--blue-700) !important;
    transform: translateY(-1px);
}

.sp-plan-btn-primary {
    background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
    color: #fff !important;
    border: none;
    box-shadow: 0 8px 20px rgba(30, 58, 138, 0.28);
}

.sp-plan-btn-primary:hover {
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(30, 58, 138, 0.35);
}

.sp-pricing-note {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    margin-top: 1.75rem;
    padding: 1.125rem 1.25rem;
    border-radius: 14px;
    background: rgba(37, 99, 235, 0.07);
    border: 1px solid rgba(37, 99, 235, 0.12);
}

.sp-pricing-note i {
    color: var(--blue-600);
    font-size: 1.125rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.sp-pricing-note p {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--muted);
}

[data-theme="dark"] .sp-plan-card {
    background: var(--surface);
}

[data-theme="dark"] .sp-plan-limit-box {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.18);
}

[data-theme="dark"] .sp-plan-btn-outline {
    background: rgba(255, 255, 255, 0.03);
}

[data-theme="dark"] .sp-pricing-note {
    background: rgba(59, 130, 246, 0.1);
}

/* legacy pricing aliases kept for compatibility */
.sp-pricing { display: none; }
.sp-plan { display: none; }

.btn-sp-outline {
    background: transparent;
    color: var(--blue-600) !important;
    border: 1.5px solid var(--border);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.65rem 1rem;
    border-radius: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.btn-sp-outline:hover {
    background: var(--accent-soft);
    border-color: var(--blue-600);
    color: var(--blue-600) !important;
    transform: translateY(-1px);
}

.w-100 { width: 100%; }
.justify-content-center { justify-content: center; }
.mt-5 { margin-top: 2.5rem; }

/* FAQ accordion */
.sp-faq {
    max-width: 760px;
    margin: 0 auto;
}

.sp-faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 0.625rem;
    background: var(--surface);
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.sp-faq-item.is-open {
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: var(--shadow);
}

.sp-faq-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.125rem 1.375rem;
    background: none;
    border: none;
    font-family: inherit;
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--text);
    text-align: left;
    cursor: pointer;
}

.sp-faq-toggle i {
    color: var(--muted);
    transition: transform 0.25s;
    flex-shrink: 0;
}

.sp-faq-item.is-open .sp-faq-toggle i { transform: rotate(180deg); color: var(--blue-600); }

.sp-faq-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s var(--ease);
}

.sp-faq-item.is-open .sp-faq-panel { max-height: 200px; }

.sp-faq-panel p {
    font-size: 0.875rem;
    color: var(--muted);
    margin: 0;
    padding: 0 1.375rem 1.125rem;
    line-height: 1.7;
}

/* CTA */
.sp-cta {
    position: relative;
    background: linear-gradient(135deg, var(--blue-950) 0%, var(--blue-800) 45%, var(--blue-600) 100%);
    border-radius: 24px;
    padding: 3.5rem 2rem;
    text-align: center;
    color: #fff;
    border: 1px solid rgba(96, 165, 250, 0.2);
    overflow: hidden;
}

.sp-cta-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 70%);
    top: -50%;
    right: -10%;
    pointer-events: none;
}

.sp-cta h2 {
    position: relative;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 0 0 0.75rem;
}

.sp-cta p {
    position: relative;
    opacity: 0.88;
    margin: 0 0 1.75rem;
    font-size: 1rem;
}

.sp-cta-actions {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.btn-sp-white {
    background: #fff;
    color: var(--blue-700) !important;
    font-weight: 700;
    padding: 0.8rem 1.5rem;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: transform 0.2s;
}

.btn-sp-white:hover {
    color: var(--blue-800) !important;
    transform: translateY(-2px);
}

.btn-sp-white-outline {
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.35);
    font-weight: 600;
    padding: 0.8rem 1.5rem;
    border-radius: 13px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(8px);
    transition: background 0.2s, border-color 0.2s;
}

.btn-sp-white-outline:hover {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

/* Footer */
.sp-footer {
    background: var(--blue-950);
    color: rgba(255, 255, 255, 0.55);
    padding: 3.5rem 1.25rem 2rem;
    font-size: 0.875rem;
}

.sp-footer-grid {
    max-width: var(--container);
    margin: 0 auto 2rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
}

.sp-footer-brand {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 0.75rem;
}

.sp-footer-brand-icon {
    border-radius: 8px;
    flex-shrink: 0;
}

.sp-footer-brand-logo {
    height: 28px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.95;
}

.sp-footer-title {
    color: #fff;
    font-weight: 600;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

.sp-footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.sp-footer-links a {
    color: rgba(255, 255, 255, 0.55);
    transition: color 0.15s;
}

.sp-footer-links a:hover { color: #fff; }

.sp-footer-bottom {
    max-width: var(--container);
    margin: 0 auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.8125rem;
}

.mb-0 { margin-bottom: 0; }

/* Partner auth aliases */
.btn-xp-primary { background: var(--blue-600); color: #fff; font-size: 0.875rem; font-weight: 600; padding: 0.625rem 1.25rem; border-radius: 10px; display: inline-flex; align-items: center; gap: 0.375rem; border: none; }
.btn-xp-hero { background: var(--blue-600); color: #fff; font-weight: 700; font-size: 0.9375rem; padding: 0.875rem 1.75rem; border-radius: 12px; display: inline-flex; align-items: center; gap: 0.5rem; }
.landing-logo-icon { display: none; }

/* Responsive */
@media (max-width: 991px) {
    .landing-nav-links { display: none !important; }
    .nav-toggle { display: inline-flex !important; }

    .sp-hero-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }

    .sp-hero-copy { text-align: center; }
    .sp-hero-lead { margin-left: auto; margin-right: auto; }
    .sp-hero-actions { justify-content: center; }
    .sp-hero-metrics { justify-content: center; }

    .sp-hero-showcase {
        min-height: auto;
        max-width: 420px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 0.875rem;
    }

    .sp-showcase-glow { display: none; }

    .sp-mock {
        position: relative;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        width: 100% !important;
        animation: none !important;
    }

    .sp-mock-api { order: 1; }
    .sp-mock-qr { order: 2; }
    .sp-mock-webhook { order: 3; }

    .sp-compare { grid-template-columns: 1fr; }
    .sp-timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
    .sp-timeline::before { display: none; }
    .sp-features-grid,
    .sp-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sp-pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
    .sp-plan-card.is-featured { order: -1; }
    .sp-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
    .sp-hero { min-height: auto; padding: 2rem 1rem 1.75rem; }
    .sp-hero-title { font-size: clamp(1.875rem, 8vw, 2.5rem); }
    .sp-hero-layout { gap: 2rem; }
    .sp-section { padding: 3.5rem 1rem; }
    .sp-heading { font-size: clamp(1.375rem, 5.5vw, 1.75rem); }
    .sp-timeline,
    .sp-features-grid,
    .sp-features,
    .sp-pricing-grid { grid-template-columns: 1fr; }

    .sp-hero-metrics {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.75rem;
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }

    .sp-metric {
        text-align: center;
    }

    .sp-metric-value {
        font-size: 1.375rem;
    }

    .sp-metric-label {
        font-size: 0.6875rem;
        line-height: 1.35;
    }

    .sp-hero-trust {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        margin-top: 2rem;
        padding: 0 0.25rem;
    }

    .sp-trust-chip {
        justify-content: center;
        text-align: center;
    }

    .sp-mock-code {
        font-size: 0.65rem;
    }
}

@media (max-width: 575px) {
    .landing-nav-inner { padding: 0.625rem 0.75rem; gap: 0.375rem; }
    .brand-logo-nav { height: 32px; max-width: 120px; }
    .landing-logo-mark { width: 36px; height: 36px; }
    .landing-logo-text { font-size: 1rem; }
    #langCurrent { display: none; }
    .landing-nav-actions .btn-sp-primary { display: none; }
    .lang-switch-btn,
    .theme-toggle,
    .nav-toggle {
        height: 36px;
        min-width: 36px;
        padding: 0 0.5rem;
    }
    .btn-sp-primary { padding: 0.5rem 0.875rem; font-size: 0.8125rem; }

    .sp-hero-actions,
    .sp-cta-actions {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        max-width: 360px;
        margin-left: auto;
        margin-right: auto;
    }

    .btn-sp-hero,
    .btn-sp-hero-outline,
    .btn-sp-white,
    .btn-sp-white-outline {
        width: 100%;
        justify-content: center;
    }

    .sp-hero-metrics {
        grid-template-columns: 1fr;
        gap: 1rem;
        max-width: 280px;
    }

    .sp-hero-trust {
        grid-template-columns: 1fr;
    }

    .sp-trust-chip { font-size: 0.75rem; padding: 0.35rem 0.7rem; }

    .sp-footer-grid { grid-template-columns: 1fr; }
    .sp-compare-card { padding: 1.5rem; }
    .sp-cta { padding: 2.25rem 1.25rem; border-radius: 18px; }
}

@media (max-width: 380px) {
    .landing-logo-text span { display: none; }
}

@media (min-width: 992px) {
    .nav-toggle { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
    .sp-reveal,
    .sp-hero-glow,
    .sp-mock,
    .sp-hero-tag-dot { animation: none !important; transition: none !important; }
    .sp-reveal { opacity: 1; transform: none; }
}