/* ============================================================================
   P57 Landing Page - Geist Design System
   Following Vercel's Geist principles for modern, accessible design
   ============================================================================ */

/* ============================================================================
   FONTS
   ============================================================================ */

/* Geist Sans - Primary interface font */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap");

/* Note: Using Inter as fallback until Geist Sans is fully available */
/* For true Geist: Use @font-face with local Geist Sans files */

:root {
    /* ============================================================================
     GEIST COLOR SYSTEM - 10-Step Scale
     Each scale goes from lightest (1) to darkest (10)
     Use: 1-3 for backgrounds, 4-6 for borders, 7-8 for emphasis, 9-10 for text
     ============================================================================ */

    /* Gray Scale (Primary) */
    --gray-1: #fafafa;
    --gray-2: #f5f5f5;
    --gray-3: #e5e5e5;
    --gray-4: #d4d4d4;
    --gray-5: #a3a3a3;
    --gray-6: #737373;
    --gray-7: #525252;
    --gray-8: #404040;
    --gray-9: #262626;
    --gray-10: #171717;

    /* Gray Alpha (For overlays and transparency) */
    --gray-alpha-1: rgba(0, 0, 0, 0.02);
    --gray-alpha-2: rgba(0, 0, 0, 0.04);
    --gray-alpha-3: rgba(0, 0, 0, 0.06);
    --gray-alpha-4: rgba(0, 0, 0, 0.08);
    --gray-alpha-5: rgba(0, 0, 0, 0.12);
    --gray-alpha-6: rgba(0, 0, 0, 0.16);
    --gray-alpha-7: rgba(0, 0, 0, 0.24);
    --gray-alpha-8: rgba(0, 0, 0, 0.48);

    /* Blue Scale (Actions, Links) */
    --blue-1: #eff6ff;
    --blue-2: #dbeafe;
    --blue-3: #bfdbfe;
    --blue-4: #93c5fd;
    --blue-5: #60a5fa;
    --blue-6: #3b82f6;
    --blue-7: #2563eb;
    --blue-8: #1e40af;
    --blue-9: #1e3a8a;
    --blue-10: #172554;

    /* Red Scale (Errors, Alerts) */
    --red-1: #fef2f2;
    --red-2: #fee2e2;
    --red-3: #fecaca;
    --red-4: #fca5a5;
    --red-5: #f87171;
    --red-6: #ef4444;
    --red-7: #dc2626;
    --red-8: #b91c1c;
    --red-9: #991b1b;
    --red-10: #7f1d1d;

    /* Green Scale (Success) */
    --green-1: #f0fdf4;
    --green-2: #dcfce7;
    --green-3: #bbf7d0;
    --green-4: #86efac;
    --green-5: #4ade80;
    --green-6: #22c55e;
    --green-7: #16a34a;
    --green-8: #15803d;
    --green-9: #166534;
    --green-10: #14532d;

    /* Amber Scale (Warnings) */
    --amber-1: #fffbeb;
    --amber-2: #fef3c7;
    --amber-3: #fde68a;
    --amber-4: #fcd34d;
    --amber-5: #fbbf24;
    --amber-6: #f59e0b;
    --amber-7: #d97706;
    --amber-8: #b45309;
    --amber-9: #92400e;
    --amber-10: #78350f;

    /* Accent Color (P57 Brand) */
    --accent: #ff4f30;
    --accent-hover: #e63e20;
    --accent-active: #cc3418;

    /* Backgrounds */
    --background-1: #ffffff;
    --background-2: var(--gray-1);

    /* ============================================================================
     TYPOGRAPHY SYSTEM
     Following Geist's precise type scale with proper line-heights
     ============================================================================ */

    /* Font Families */
    --font-sans:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
        sans-serif;
    --font-mono: "SF Mono", "Monaco", "Consolas", "Courier New", monospace;

    /* Headings - For page/section introductions */
    --heading-72: 600 72px/1.1 var(--font-sans);
    --heading-64: 600 64px/1.1 var(--font-sans);
    --heading-56: 600 56px/1.1 var(--font-sans);
    --heading-48: 600 48px/1.15 var(--font-sans);
    --heading-40: 600 40px/1.2 var(--font-sans);
    --heading-32: 600 32px/1.2 var(--font-sans);
    --heading-24: 600 24px/1.3 var(--font-sans);
    --heading-20: 600 20px/1.3 var(--font-sans);
    --heading-16: 600 16px/1.4 var(--font-sans);
    --heading-14: 600 14px/1.4 var(--font-sans);

    /* Labels - For single-line UI text */
    --label-20: 400 20px/32px var(--font-sans);
    --label-18: 400 18px/28px var(--font-sans);
    --label-16: 400 16px/24px var(--font-sans);
    --label-14: 400 14px/20px var(--font-sans);
    --label-13: 400 13px/20px var(--font-sans);
    --label-12: 400 12px/16px var(--font-sans);

    /* Copy - For multi-line body text */
    --copy-24: 400 24px/36px var(--font-sans);
    --copy-20: 400 20px/32px var(--font-sans);
    --copy-18: 400 18px/28px var(--font-sans);
    --copy-16: 400 16px/24px var(--font-sans);
    --copy-14: 400 14px/20px var(--font-sans);
    --copy-13: 400 13px/20px var(--font-sans);

    /* Buttons - For button components only */
    --button-16: 500 16px/1 var(--font-sans);
    --button-14: 500 14px/1 var(--font-sans);
    --button-12: 500 12px/1 var(--font-sans);

    /* Letter Spacing */
    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.02em;

    /* ============================================================================
     SPACING SYSTEM - 8px Grid
     All spacing follows strict 8px multiples for consistency
     ============================================================================ */

    --space-1: 4px; /* Half unit for rare cases */
    --space-2: 8px; /* Base unit */
    --space-3: 12px; /* 1.5x base */
    --space-4: 16px; /* 2x base - Common component spacing */
    --space-5: 24px; /* 3x base */
    --space-6: 32px; /* 4x base - Section spacing */
    --space-7: 40px; /* 5x base */
    --space-8: 48px; /* 6x base - Large section spacing */
    --space-9: 64px; /* 8x base */
    --space-10: 80px; /* 10x base */
    --space-12: 96px; /* 12x base */
    --space-16: 128px; /* 16x base - Extra large sections */
    --space-20: 160px; /* 20x base - Hero sections */

    /* ============================================================================
     MATERIAL SYSTEM - Elevation & Shadows
     Defines depth through shadows and border radius
     ============================================================================ */

    /* Border Radius - Geist Standard */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Surface Materials (on-page elements) */
    --shadow-base: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.06);
    --shadow-large: 0 8px 16px rgba(0, 0, 0, 0.08);

    /* Floating Materials (above-page elements) */
    --shadow-tooltip: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-menu: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-modal: 0 8px 24px rgba(0, 0, 0, 0.16);

    /* ============================================================================
     TRANSITIONS
     Smooth, purposeful animations
     ============================================================================ */

    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* ============================================================================
     LAYOUT
     Container and breakpoint values
     ============================================================================ */

    --container-max-width: 1200px;
    --container-padding: var(--space-5);

    /* Breakpoints (for reference in media queries) */
    --breakpoint-mobile: 768px;
    --breakpoint-tablet: 1024px;
    --breakpoint-desktop: 1440px;
}

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font: var(--copy-14);
    color: var(--gray-10);
    background: var(--background-1);
    overflow-x: hidden;
    min-height: 100vh;
}

/* ============================================================================
   TYPOGRAPHY UTILITY CLASSES
   Apply proper Geist typography to elements
   ============================================================================ */

/* Headings */
.text-heading-72 {
    font: var(--heading-72);
    letter-spacing: var(--tracking-tight);
}
.text-heading-64 {
    font: var(--heading-64);
    letter-spacing: var(--tracking-tight);
}
.text-heading-56 {
    font: var(--heading-56);
    letter-spacing: var(--tracking-tight);
}
.text-heading-48 {
    font: var(--heading-48);
    letter-spacing: var(--tracking-tight);
}
.text-heading-40 {
    font: var(--heading-40);
    letter-spacing: var(--tracking-tight);
}
.text-heading-32 {
    font: var(--heading-32);
    letter-spacing: var(--tracking-tight);
}
.text-heading-24 {
    font: var(--heading-24);
}
.text-heading-20 {
    font: var(--heading-20);
}
.text-heading-16 {
    font: var(--heading-16);
}
.text-heading-14 {
    font: var(--heading-14);
}

/* Labels */
.text-label-20 {
    font: var(--label-20);
}
.text-label-18 {
    font: var(--label-18);
}
.text-label-16 {
    font: var(--label-16);
}
.text-label-14 {
    font: var(--label-14);
}
.text-label-13 {
    font: var(--label-13);
}
.text-label-12 {
    font: var(--label-12);
    letter-spacing: var(--tracking-wide);
}

/* Copy */
.text-copy-24 {
    font: var(--copy-24);
}
.text-copy-20 {
    font: var(--copy-20);
}
.text-copy-18 {
    font: var(--copy-18);
}
.text-copy-16 {
    font: var(--copy-16);
}
.text-copy-14 {
    font: var(--copy-14);
}
.text-copy-13 {
    font: var(--copy-13);
}

/* Buttons */
.text-button-16 {
    font: var(--button-16);
}
.text-button-14 {
    font: var(--button-14);
}
.text-button-12 {
    font: var(--button-12);
}

/* Color Utilities */
.text-primary {
    color: var(--gray-10);
}
.text-secondary {
    color: var(--gray-9);
}
.text-tertiary {
    color: var(--gray-7);
}
.text-accent {
    color: var(--accent);
}

/* ============================================================================
   MATERIAL UTILITIES
   Apply proper elevation to components
   ============================================================================ */

.material-base {
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-base);
}

.material-small {
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-small);
}

.material-medium {
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-medium);
}

.material-large {
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-large);
}

.material-menu {
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-menu);
}

/* ============================================================================
   LAYOUT COMPONENTS
   ============================================================================ */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

section {
    padding: var(--space-12) 0;
}

/* ============================================================================
   HEADER COMPONENT
   Sticky navigation with proper Geist styling
   ============================================================================ */

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--background-1);
    border-bottom: 1px solid var(--gray-3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    height: 32px;
    width: auto;
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 0.7;
}

nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

nav a {
    font: var(--label-14);
    color: var(--gray-9);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

nav a:hover {
    color: var(--gray-10);
}

nav a:not(.btn):hover::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gray-10);
    animation: slideIn var(--transition-fast) ease;
}

@keyframes slideIn {
    from {
        transform: scaleX(0);
    }
    to {
        transform: scaleX(1);
    }
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 3px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--gray-10);
    transition: all var(--transition-base);
    transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================================
   BUTTON COMPONENT
   Following Geist button patterns: Primary, Secondary, Ghost
   ============================================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font: var(--button-14);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid transparent;
    min-height: 44px;
    padding: 0 var(--space-4);
    white-space: nowrap;
}

/* Primary Button - High contrast, main CTAs */
.btn-primary {
    background: var(--gray-10);
    color: var(--background-1);
    border-color: var(--gray-10);
}

.btn-primary:hover {
    background: var(--gray-9);
    border-color: var(--gray-9);
}

.btn-primary:active {
    background: var(--gray-8);
    border-color: var(--gray-8);
    transform: scale(0.98);
}

/* Secondary Button - Outlined */
.btn-secondary {
    background: transparent;
    color: var(--gray-10);
    border-color: var(--gray-4);
}

.btn-secondary:hover {
    background: var(--gray-1);
    border-color: var(--gray-5);
}

.btn-secondary:active {
    background: var(--gray-2);
    border-color: var(--gray-6);
}

/* Ghost Button - Minimal */
.btn-ghost {
    background: transparent;
    color: var(--gray-10);
}

.btn-ghost:hover {
    background: var(--gray-1);
}

.btn-ghost:active {
    background: var(--gray-2);
}

/* Button Sizes */
.btn-small {
    min-height: 32px;
    padding: 0 var(--space-3);
    font: var(--button-12);
}

.btn-large {
    min-height: 48px;
    padding: 0 var(--space-6);
    font: var(--button-16);
}

/* Button States */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:focus-visible {
    outline: 2px solid var(--gray-8);
    outline-offset: 2px;
}

/* ============================================================================
   HERO SECTION
   Large marketing section with background image
   ============================================================================ */

/* ============================================================================
   HERO SECTION - Split Panel Design (Russell Brunson DotCom Secrets inspired)
   Left: Features/Benefits | Right: Registration Form
   ============================================================================ */

.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding: 96px 0;
    background: var(--background-1);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: start;
    padding-top: 32px;
}

/* Left Panel: Features & Benefits */
.hero-features {
    padding-right: 24px;
}

.hero-title {
    font: var(--heading-48);
    letter-spacing: -0.02em;
    color: var(--gray-10);
    margin-bottom: 16px;
    line-height: 1.1;
    font-weight: 600;
}

.hero-subtitle {
    font: var(--label-16);
    color: var(--gray-8);
    margin-bottom: 32px;
    line-height: 1.5;
    max-width: 540px;
}

/* Feature List - Clean Geist Design */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font: var(--label-14);
    color: var(--gray-9);
    padding: 6px 0;
}

/* Hero feature icons - NO boxes, just subtle inline icons */
.hero .feature-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    color: var(--gray-6);
    opacity: 0.5;
    background: none !important;
    border-radius: 0 !important;
    display: inline !important;
}

.hero .feature-item span {
    line-height: 1.4;
    font-weight: 400;
    letter-spacing: -0.01em;
}

/* Social Proof - Geist Material */
.social-proof {
    font: var(--label-13);
    color: var(--gray-8);
    padding: 12px 16px;
    background: var(--gray-1);
    border: 1px solid var(--gray-3);
    border-radius: 8px;
    margin-bottom: 16px;
}

.social-proof strong {
    color: var(--gray-10);
    font-weight: 500;
}

/* Secondary Link */
.hero-secondary-link {
    font: var(--label-13);
    margin: 0;
}

.hero-secondary-link a {
    color: var(--gray-8);
    text-decoration: none;
    transition: color 150ms ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.hero-secondary-link a:hover {
    color: var(--gray-10);
}

/* Right Panel: Registration Form - Geist Material-Medium */
.hero-form-panel {
    background: var(--background-1);
    border: 1px solid var(--gray-4);
    border-radius: 12px;
    padding: 32px;
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.04),
        0 1px 2px rgba(0, 0, 0, 0.06);
}

.form-header {
    margin-bottom: 24px;
    text-align: left;
}

.form-header h2 {
    font: var(--heading-24);
    color: var(--gray-10);
    margin-bottom: 8px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.form-subheading {
    font: var(--label-13);
    color: var(--gray-7);
    margin: 0;
    line-height: 1.5;
}

/* Form Trust Signal */
.form-trust-signal {
    font: var(--label-12);
    color: var(--gray-6);
    text-align: center;
    margin: 12px 0 0 0;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 64px 0;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    /* Mobile: Keep natural order (features then form) */
    .hero-form-panel {
        padding: 24px;
    }

    .hero-features {
        padding-right: 0;
    }

    .hero-title {
        font: var(--heading-32);
        margin-bottom: 12px;
    }

    .hero-subtitle {
        font: var(--label-14);
        margin-bottom: 24px;
    }

    .feature-list {
        gap: 6px;
        margin-bottom: 20px;
    }

    .feature-item {
        font: var(--label-13);
        padding: 4px 0;
    }

    .form-header h2 {
        font: var(--heading-20);
    }
}

/* Removed fadeInUp animation - not part of Geist design */

/* ============================================================================
   LOGO CLOUD SECTION
   Partner logos in static grid
   ============================================================================ */

.logo-cloud {
    background: var(--background-2);
    padding: var(--space-12) 0;
}

.logo-cloud-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
}

.logo-cloud-text p {
    font: var(--label-13);
    font-weight: 600;
    color: var(--gray-7);
    text-align: center;
    margin: 0;
}

.logo-slider-container {
    width: 100%;
    max-width: var(--container-max-width);
}

.logo-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    width: 100%;
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-5);
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-sm);
    min-height: 120px;
    transition: all var(--transition-fast);
}

.logo-item:hover {
    border-color: var(--gray-4);
    transform: translateY(-2px);
    box-shadow: var(--shadow-small);
}

.partner-logo {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 60px;
    object-fit: contain;
    filter: grayscale(1) opacity(0.5);
    transition: all var(--transition-base);
}

.logo-item:hover .partner-logo {
    filter: grayscale(0) opacity(1);
}

/* ============================================================================
   STATS/FACTS SECTION (Why AI Matters)
   Black background with white text, bold statistics
   ============================================================================ */

.facts-new {
    background: var(--gray-10);
    color: var(--background-1);
    padding: var(--space-16) 0;
    position: relative;
}

.why-ai-title {
    font: var(--heading-40);
    letter-spacing: var(--tracking-tight);
    color: var(--background-1);
    text-align: center;
    margin-bottom: var(--space-8);
}

.facts-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.facts-header h3 {
    font: var(--heading-32);
    letter-spacing: var(--tracking-tight);
    color: var(--background-1);
    text-transform: uppercase;
}

.facts-container {
    display: grid;
    gap: 0;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.fact-item {
    border-bottom: 2px solid var(--background-1);
    padding: var(--space-8) 0;
    transition: all var(--transition-base);
    opacity: 1;
}

.fact-item:nth-child(1) {
}
.fact-item:nth-child(2) {
}
.fact-item:nth-child(3) {
}
.fact-item:nth-child(4) {
}
.fact-item:nth-child(5) {
}
.fact-item:nth-child(6) {
}
.fact-item:nth-child(7) {
}

.fact-item:last-child {
    border-bottom: none;
}

.fact-item:hover {
    padding-left: var(--space-6);
    background: rgba(255, 255, 255, 0.05);
}

.fact-item blockquote {
    margin: 0;
    padding: 0;
}

.fact-text {
    font: var(--copy-20);
    color: var(--background-1);
    margin: 0;
    max-width: 900px;
}

.fact-highlight {
    font-weight: 900;
    text-decoration: underline;
    text-decoration-thickness: 3px;
    text-underline-offset: 4px;
}

.fact-source {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding-top: var(--space-4);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.source-logo {
    height: 32px;
    width: auto;
    max-width: 180px;
    color: rgba(255, 255, 255, 0.5);
    opacity: 0.7;
    transition: all var(--transition-base);
}

.fact-item:hover .source-logo {
    color: var(--background-1);
    opacity: 1;
}

.facts-cta {
    text-align: center;
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    border-top: 2px solid rgba(255, 255, 255, 0.2);
}

.facts-cta .btn-primary {
    background: var(--background-1);
    color: var(--gray-10);
    border-color: var(--background-1);
}

.facts-cta .btn-primary:hover {
    background: var(--gray-10);
    color: var(--background-1);
    border: 2px solid var(--background-1);
    transform: scale(1.05);
}

.facts-cta p {
    font: var(--label-14);
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--space-4);
}

.facts-cta a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.facts-cta a:hover {
    color: var(--background-1);
}

/* ============================================================================
   PROBLEMS SECTION
   Grid of common ChatGPT problems
   ============================================================================ */

.problems-section {
    background: var(--background-1);
    padding: var(--space-16) 0;
    position: relative;
}

/* Subtle grid background pattern */
.problems-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--gray-alpha-1) 1px, transparent 1px),
        linear-gradient(90deg, var(--gray-alpha-1) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

.problems-wrapper {
    position: relative;
    z-index: 1;
}

.problems-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.problems-header h2 {
    font: var(--heading-40);
    letter-spacing: var(--tracking-tight);
    color: var(--gray-10);
    margin-bottom: var(--space-3);
}

.problems-header p {
    font: var(--copy-16);
    color: var(--gray-7);
    max-width: 600px;
    margin: 0 auto var(--space-3);
}

.problems-header h3 {
    font: var(--heading-24);
    color: var(--gray-10);
}

/* Problem Grid - 2 columns on desktop (Geist v2) */
.problems-grid-new {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
    max-width: 960px;
    margin: 0 auto;
}

.problem-card {
    background: var(--background-1);
    border: 1px solid var(--gray-4);
    border-radius: var(--radius-sm);
    padding: var(--space-6);
    transition: all var(--transition-base);
}

.problem-card:hover {
    border-color: var(--gray-5);
    box-shadow: var(--shadow-small);
    transform: translateY(-2px);
}

.problem-number {
    font: var(--label-12);
    color: var(--gray-6);
    margin-bottom: var(--space-3);
    font-family: var(--font-mono);
}

.problem-card h3 {
    font: var(--heading-16);
    color: var(--gray-10);
    margin-bottom: var(--space-2);
}

.problem-card p {
    font: var(--copy-13);
    color: var(--gray-8);
}

/* Remove graph lines - simplified design */
.graph-line {
    display: none;
}

/* ============================================================================
   FAQ SECTION
   Black background accordion
   ============================================================================ */

.faq-section {
    background: var(--gray-10);
    color: var(--background-1);
    padding: var(--space-16) 0;
}

.faq-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.faq-header h2 {
    font: var(--heading-40);
    letter-spacing: var(--tracking-tight);
    color: var(--background-1);
    margin-bottom: var(--space-4);
}

.faq-header h3 {
    font: var(--copy-18);
    color: rgba(255, 255, 255, 0.8);
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 1;
}

.faq-item[data-delay="0.1"] {
}
.faq-item[data-delay="0.2"] {
}
.faq-item[data-delay="0.3"] {
}
.faq-item[data-delay="0.4"] {
}
.faq-item[data-delay="0.5"] {
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    padding: var(--space-6) 0;
    background: none;
    border: none;
    color: var(--background-1);
    font: var(--label-16);
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    transition: all var(--transition-base);
    min-height: 48px;
}

.faq-question:hover {
    color: rgba(255, 255, 255, 0.8);
}

.faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition:
        max-height var(--transition-base),
        padding var(--transition-base);
}

.faq-question[aria-expanded="true"] + .faq-answer {
    max-height: 300px;
    padding-bottom: var(--space-6);
}

.faq-answer p {
    font: var(--copy-14);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* ============================================================================
   CTA REGISTRATION BANNER
   Full-width banner with inline form at bottom of page
   ============================================================================ */

.cta-register-section {
    background: linear-gradient(135deg, var(--gray-10) 0%, var(--gray-9) 100%);
    padding: var(--space-12) 0;
    color: var(--background-1);
}

.cta-banner-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.cta-banner-text h2 {
    font: var(--heading-40);
    letter-spacing: var(--tracking-tight);
    color: var(--background-1);
    margin-bottom: var(--space-3);
}

.cta-banner-text p {
    font: var(--copy-18);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
}

/* CTA Form Styling */
.cta-banner-form {
    background: var(--background-1);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    box-shadow: var(--shadow-large);
}

.cta-form-group {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.cta-form-input {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-4);
    border-radius: var(--radius-sm);
    font: var(--copy-14);
    color: var(--gray-10);
    background: var(--background-1);
    transition: all var(--transition-fast);
}

.cta-form-input:focus {
    outline: none;
    border-color: var(--gray-10);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.cta-btn {
    white-space: nowrap;
    padding: var(--space-3) var(--space-6);
}

.cta-form-footer {
    font: var(--label-12);
    color: var(--gray-7);
    text-align: center;
    margin: var(--space-2) 0 0;
}

.cta-form-footer a {
    color: var(--gray-10);
    text-decoration: underline;
}

.cta-form-footer a:hover {
    color: var(--gray-9);
}

/* Hide inactive step */
.register-step {
    display: none;
}

.register-step.active {
    display: block;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .cta-banner-content {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

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

    .cta-banner-text h2 {
        font: var(--heading-32);
    }

    .cta-banner-text p {
        font: var(--copy-16);
    }

    .cta-form-group {
        flex-direction: column;
    }

    .cta-btn {
        width: 100%;
    }
}

/* ============================================================================
   PRICING SECTION
   Feature list with pricing card
   ============================================================================ */

.pricing-section {
    background: var(--background-1);
    padding: var(--space-16) 0;
}

.pricing-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.pricing-header h2 {
    font: var(--heading-40);
    letter-spacing: var(--tracking-tight);
    color: var(--gray-10);
    margin-bottom: var(--space-3);
}

.pricing-subtitle {
    font: var(--copy-16);
    color: var(--gray-7);
}

.pricing-header h3 {
    font: var(--heading-24);
    color: var(--gray-10);
    margin-top: var(--space-4);
}

.pricing-card {
    border: 2px solid var(--gray-10);
    background: var(--background-1);
    box-shadow: 8px 8px 0 0 var(--gray-10);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition-base);
}

.pricing-card:hover {
    box-shadow: 12px 12px 0 0 var(--gray-10);
    transform: translate(-2px, -2px);
}

.pricing-content {
    padding: var(--space-8);
}

.pricing-features {
    margin-bottom: var(--space-8);
}

.feature-item {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.feature-item:last-child {
    margin-bottom: 0;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--gray-10);
    color: var(--background-1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-text h3 {
    font: var(--heading-16);
    color: var(--gray-10);
    margin-bottom: var(--space-2);
}

.feature-text p {
    font: var(--copy-14);
    color: var(--gray-7);
    margin: 0;
}

.feature-text a {
    color: var(--accent);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.feature-text a:hover {
    color: var(--accent-hover);
}

.pricing-bottom {
    border-top: 2px solid var(--gray-10);
    padding: var(--space-6) var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.price-wrapper {
    text-align: left;
}

.price-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.price {
    font: var(--heading-32);
    color: var(--gray-10);
}

.currency {
    font-size: 0.7em;
    font-weight: 700;
}

.price-note {
    font: var(--label-13);
    color: var(--gray-7);
    margin: 0;
}

/* ============================================================================
   REGISTRATION SECTION
   Phone + OTP form
   ============================================================================ */

.register-section {
    padding: var(--space-16) 0;
    background: linear-gradient(
        180deg,
        var(--background-1) 0%,
        var(--background-2) 100%
    );
    border-top: 1px solid var(--gray-3);
}

.register-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.register-intro {
    margin-bottom: var(--space-10);
}

.register-intro h2 {
    font: var(--heading-32);
    letter-spacing: var(--tracking-tight);
    color: var(--gray-10);
    margin-bottom: var(--space-3);
}

.register-intro p {
    font: var(--copy-16);
    color: var(--gray-7);
    margin: 0 auto;
}

.register-form-container {
    background: var(--background-1);
    border: 1px solid var(--gray-3);
    border-radius: var(--radius-md);
    padding: var(--space-8);
    box-shadow: var(--shadow-medium);
}

.register-step {
    display: none;
}

.register-step.active {
    display: block;
}

.otp-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.btn-back {
    background: transparent;
    border: none;
    color: var(--gray-7);
    font: var(--label-14);
    cursor: pointer;
    padding: var(--space-2);
    text-align: left;
    transition: all var(--transition-fast);
}

.btn-back:hover {
    color: var(--gray-10);
}

.phone-display {
    font: var(--label-16);
    font-weight: 600;
    color: var(--gray-10);
    text-align: center;
    margin: 0;
}

.register-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    text-align: left;
}

.form-group label {
    font: var(--label-13);
    font-weight: 600;
    color: var(--gray-10);
}

.form-input {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--gray-4);
    border-radius: var(--radius-sm);
    font: var(--copy-14);
    color: var(--gray-10);
    transition: all var(--transition-fast);
    min-height: 48px;
    background: var(--background-1);
}

.form-input:hover {
    border-color: var(--gray-5);
}

.form-input:focus {
    outline: none;
    border-color: var(--gray-8);
    box-shadow: 0 0 0 3px var(--gray-alpha-2);
}

.form-input.error {
    border-color: var(--red-7);
}

.form-error {
    font: var(--label-12);
    color: var(--red-7);
    display: none;
}

.form-error.visible {
    display: block;
}

.otp-input-group {
    display: flex;
    justify-content: center;
    gap: var(--space-2);
    margin: var(--space-6) 0;
}

.otp-digit {
    width: 48px;
    height: 56px;
    text-align: center;
    font: var(--heading-24);
    border: 2px solid var(--gray-4);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    background: var(--background-1);
}

.otp-digit:hover {
    border-color: var(--gray-5);
}

.otp-digit:focus {
    outline: none;
    border-color: var(--gray-8);
    box-shadow: 0 0 0 3px var(--gray-alpha-2);
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--background-1);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.btn:disabled .btn-text {
    display: none;
}

.btn:disabled .btn-loader {
    display: block;
}

.resend-timer {
    text-align: center;
    font: var(--label-13);
    color: var(--gray-7);
    margin-top: var(--space-3);
}

.form-footer-text {
    text-align: center;
    margin-top: var(--space-4);
    font: var(--label-13);
    color: var(--gray-7);
}

.form-footer-text a {
    color: var(--gray-10);
    font-weight: 600;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.form-footer-text a:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* ============================================================================
   FOOTER
   Simple centered footer
   ============================================================================ */

footer {
    text-align: center;
    padding: var(--space-10) 0;
    background: var(--background-2);
    border-top: 1px solid var(--gray-3);
}

footer p {
    font: var(--label-13);
    color: var(--gray-7);
    margin: 0;
}

/* ============================================================================
   RESPONSIVE DESIGN
   Mobile-first approach with progressive enhancement
   ============================================================================ */

/* Tablet (769px - 1023px) */
@media (min-width: 769px) and (max-width: 1023px) {
    .hero {
        background-position: 65% center;
    }

    .logo-slider {
        grid-template-columns: repeat(2, 1fr);
    }

    .problems-grid-new {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile (≤768px) */
@media (max-width: 768px) {
    /* Typography adjustments */
    .text-heading-48 {
        font: var(--heading-40);
    }
    .text-heading-40 {
        font: var(--heading-32);
    }
    .text-heading-32 {
        font: var(--heading-24);
    }

    /* Header mobile */
    .menu-toggle {
        display: flex;
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--background-1);
        box-shadow: var(--shadow-menu);
        flex-direction: column;
        padding: var(--space-10) var(--space-5);
        gap: var(--space-2);
        transition: right var(--transition-base);
        z-index: 1001;
        backdrop-filter: blur(12px);
    }

    nav.active {
        right: 0;
    }

    nav a {
        width: 100%;
        padding: var(--space-4) var(--space-3);
        border-bottom: 1px solid var(--gray-3);
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    nav a.btn {
        margin-top: var(--space-4);
        justify-content: center;
    }

    /* Hero mobile */
    .hero {
        min-height: 100vh;
        background-position: 70% center;
        padding: var(--space-10) 0;
    }

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

    .hero-content h1 {
        max-width: 100%;
    }

    .hero-content p {
        max-width: 100%;
    }

    /* Logo cloud mobile */
    .logo-slider {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Problems grid mobile */
    .problems-grid-new {
        grid-template-columns: 1fr;
    }

    /* Pricing mobile */
    .pricing-bottom {
        flex-direction: column;
        text-align: center;
    }

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

    /* Registration mobile */
    .otp-digit {
        width: 40px;
        height: 48px;
    }

    /* Spacing adjustments */
    section {
        padding: var(--space-10) 0;
    }

    .container {
        padding: 0 var(--space-4);
    }
}

/* Mobile overlay for menu */
.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* ============================================================================
   ACCESSIBILITY & FOCUS STATES
   ============================================================================ */

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--gray-8);
    outline-offset: 2px;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--gray-10);
    color: var(--background-1);
    padding: var(--space-2) var(--space-3);
    text-decoration: none;
    z-index: 10000;
    border-radius: var(--radius-sm);
    font: var(--label-14);
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --gray-3: #000000;
        --gray-7: #000000;
    }
}

/* Touch-friendly adjustments */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px;
    }

    a,
    button {
        -webkit-tap-highlight-color: transparent;
    }
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

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

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

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

/* END OF GEIST DESIGN SYSTEM CSS */