/* ===================================
   CSS Variables & Design System
   =================================== */

:root {
    /* Color System */
    --color-primary: #7c3aed;
    --color-primary-light: #a855f7;
    --color-bg-dark: #0a0a0f;
    --color-bg-section: #1a1a2e;
    --color-accent: #22d3ee;
    --color-text-primary: #f9fafb;
    --color-text-secondary: #9ca3af;
    --color-text-tertiary: #6b7280;
    --color-border: #374151;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --text-hero: 36px;
    --text-h2: 28px;
    --text-h3: 20px;
    --text-body: 16px;
    --text-small: 14px;
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --font-normal: 400;
    --font-semibold: 600;
    --font-bold: 700;

    /* Spacing */
    --space-2: 0.5rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* Section Spacing */
    --section-spacing: var(--space-16);

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Desktop breakpoint adjustments */
@media (min-width: 1024px) {
    :root {
        --text-hero: 72px;
        --text-h2: 48px;
        --text-h3: 24px;
        --text-body: 18px;
        --text-small: 16px;
        --section-spacing: var(--space-32);
    }
}

/* ===================================
   CSS Reset & Base Styles
   =================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-body);
    line-height: var(--leading-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    border: none;
    cursor: pointer;
}

/* Accessibility: Reduce motion */
@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;
    }
}

/* ===================================
   Layout Utilities
   =================================== */

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-12);
    }
}

section {
    padding: var(--section-spacing) 0;
}

/* Section background alternation */
.problem-section,
.proof-section {
    background-color: var(--color-bg-section);
}

/* ===================================
   Typography
   =================================== */

.section-heading {
    font-size: var(--text-h2);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    text-align: center;
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.section-subtitle {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--space-12);
    line-height: var(--leading-normal);
}

/* ===================================
   CTA Button Styles
   =================================== */

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    min-height: 56px;
    font-size: 18px;
    font-weight: var(--font-semibold);
    color: #ffffff;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: 12px;
    box-shadow: 0 10px 40px -10px rgba(124, 58, 237, 0.5);
    transition: all var(--transition-base);
    text-align: center;
    cursor: pointer;
    border: none;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 50px -10px rgba(124, 58, 237, 0.7);
}

.cta-button:active {
    transform: scale(0.98);
}

.cta-button:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

/* CTA button variants */
.cta-primary {
    font-size: 18px;
}

.cta-secondary {
    font-size: 16px;
    padding: 0.875rem 2rem;
}

.cta-final {
    font-size: 20px;
    padding: 1.25rem 3rem;
}

.cta-floating {
    font-size: 14px;
    padding: 0.75rem 1.5rem;
    min-height: 44px;
}

/* Center CTA helper */
.cta-center {
    display: flex;
    justify-content: center;
    margin-top: var(--space-12);
}

/* ===================================
   Hero Section
   =================================== */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-12) 0;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-heading {
    font-size: var(--text-hero);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
    animation: fadeInUp 0.6s ease-out 0.15s both;
}

.hero-subheading {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-8);
    animation: fadeIn 0.6s ease-out 0.3s both;
}

.hero-section .cta-button {
    margin-bottom: var(--space-6);
    animation: scaleIn 0.6s ease-out 0.45s both;
}

/* Trust badges */
.trust-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    font-size: var(--text-small);
    color: var(--color-text-secondary);
}

.trust-badges .badge {
    white-space: nowrap;
}

.trust-badges .divider {
    color: var(--color-border);
}

/* Hero visual */
.hero-visual {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.6s ease-out 0.6s both;
}

.hero-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

/* ===================================
   Problem Comparison Section
   =================================== */

.comparison-grid {
    display: grid;
    gap: var(--space-8);
    margin-top: var(--space-12);
}

@media (min-width: 768px) {
    .comparison-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

.comparison-card {
    background-color: var(--color-bg-section);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-base);
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.comparison-card.highlight {
    border-color: var(--color-primary);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.1) 0%, rgba(168, 85, 247, 0.1) 100%);
}

.card-icon {
    font-size: 48px;
    margin-bottom: var(--space-4);
}

.card-title {
    font-size: var(--text-h3);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.card-list {
    list-style: none;
    text-align: left;
}

.card-list li {
    padding: var(--space-2) 0;
    color: var(--color-text-secondary);
    position: relative;
    padding-left: var(--space-6);
}

.card-list li::before {
    content: "•";
    position: absolute;
    left: var(--space-4);
    color: var(--color-accent);
}

.card-desc {
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
}

/* ===================================
   Value Proposition Section
   =================================== */

.value-grid {
    display: grid;
    gap: var(--space-8);
    margin-bottom: var(--space-16);
}

@media (min-width: 768px) {
    .value-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

.value-card {
    background-color: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-base);
}

.value-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(124, 58, 237, 0.2);
}

.value-icon {
    font-size: 56px;
    margin-bottom: var(--space-4);
}

.value-title {
    font-size: var(--text-h3);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    color: var(--color-text-primary);
}

.value-desc {
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
}

/* Testimonials */
.testimonials {
    margin-top: var(--space-16);
}

.testimonials-heading {
    font-size: var(--text-h3);
    font-weight: var(--font-bold);
    text-align: center;
    margin-bottom: var(--space-8);
    color: var(--color-text-primary);
}

.testimonials-grid {
    display: grid;
    gap: var(--space-8);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

.testimonial-card {
    background-color: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--space-6);
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: var(--space-4);
    overflow: hidden;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-quote {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-4);
    font-style: italic;
}

.testimonial-author {
    margin-top: var(--space-4);
}

.author-name {
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.author-title {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
}

/* ===================================
   Social Proof Section
   =================================== */

.stats-grid {
    display: grid;
    gap: var(--space-8);
    margin-bottom: var(--space-16);
    text-align: center;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

.stat-card {
    padding: var(--space-8);
}

.stat-number {
    font-size: 56px;
    font-weight: var(--font-bold);
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
}

/* Media logos */
.media-logos {
    margin-bottom: var(--space-16);
}

.media-heading {
    font-size: var(--text-h3);
    font-weight: var(--font-semibold);
    text-align: center;
    margin-bottom: var(--space-8);
    color: var(--color-text-secondary);
}

.logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
}

.logo-item {
    font-size: var(--text-body);
    font-weight: var(--font-semibold);
    color: var(--color-text-tertiary);
    padding: var(--space-4) var(--space-6);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: all var(--transition-base);
}

.logo-item:hover {
    color: var(--color-text-primary);
    border-color: var(--color-primary);
}

/* ===================================
   Final CTA Section
   =================================== */

.final-cta-section {
    text-align: center;
}

.final-cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.final-heading {
    font-size: var(--text-h2);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-6);
    color: var(--color-text-primary);
}

.final-subheading {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
    margin-bottom: var(--space-8);
}

.final-subheading strong {
    color: var(--color-accent);
    font-weight: var(--font-semibold);
}

.urgency-text {
    margin-top: var(--space-6);
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background-color: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
    padding: var(--space-12) 0;
}

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

.footer-disclaimer {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-6);
    line-height: var(--leading-normal);
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.footer-links a {
    font-size: var(--text-small);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-links .divider {
    color: var(--color-border);
}

.footer-copyright {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
}

/* ===================================
   Floating CTA Bar (Mobile)
   =================================== */

.floating-cta-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--color-border);
    padding: var(--space-4);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-base);
    display: none;
}

@media (max-width: 767px) {
    .floating-cta-bar {
        display: block;
    }

    .floating-cta-bar.visible {
        transform: translateY(0);
    }
}

.floating-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    max-width: 1280px;
    margin: 0 auto;
}

.floating-text {
    font-size: var(--text-small);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scroll-triggered animations */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   Mobile Optimizations
   =================================== */

@media (max-width: 639px) {
    .hero-heading {
        font-size: 32px;
    }

    .cta-button {
        width: 100%;
        max-width: 100%;
    }

    .trust-badges {
        font-size: 12px;
    }

    .comparison-grid,
    .value-grid,
    .testimonials-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   Navigation Bar
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(135deg, rgba(10, 10, 15, 0.92) 0%, rgba(26, 26, 46, 0.92) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(124, 58, 237, 0.2);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: linear-gradient(135deg, rgba(10, 10, 15, 0.98) 0%, rgba(26, 26, 46, 0.98) 100%);
    box-shadow: 0 4px 24px rgba(124, 58, 237, 0.15), 0 2px 10px rgba(0, 0, 0, 0.3);
    border-bottom-color: rgba(124, 58, 237, 0.3);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 64px;
    position: relative;
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: all var(--transition-fast);
    position: absolute;
    left: 2rem;
}

.nav-logo:hover {
    transform: translateY(-1px);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: var(--font-bold);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 8px rgba(124, 58, 237, 0.3);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    margin: 0;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: var(--font-semibold);
    transition: all var(--transition-fast);
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: inline-block;
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    background: rgba(124, 58, 237, 0.1);
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: -1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
    transition: transform var(--transition-base);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::before {
    opacity: 1;
}

.nav-link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active::before {
    opacity: 1;
}

.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}


/* Adjust hero section for navbar */
.hero-section {
    padding-top: calc(64px + var(--space-16));
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
        height: 56px;
        flex-direction: column;
        gap: 0.5rem;
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
        height: auto;
    }

    .nav-logo {
        position: static;
        margin-bottom: 0.25rem;
    }

    .logo-text {
        font-size: 1.125rem;
    }

    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .nav-item {
        width: auto;
    }

    .nav-link {
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }

    .hero-section {
        padding-top: calc(100px + var(--space-8));
    }
}

/* Tablet breakpoint */
@media (min-width: 769px) and (max-width: 1024px) {
    .nav-menu {
        gap: 0.125rem;
    }

    .nav-link {
        font-size: 0.875rem;
        padding: 0.5rem 0.875rem;
    }

    .nav-container {
        padding: 0 1.5rem;
    }
}