/* ============================================
   SYNAPSE AI — Landing Page Styles
   Design System + Component Styles
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Colors */
  --color-primary: #2563EB;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-primary-bg: #eff6ff;
  --color-primary-bg-alt: #dbeafe;

  --color-text-dark: #0f172a;
  --color-text-medium: #334155;
  --color-text-light: #64748b;
  --color-text-muted: #94a3b8;

  --color-bg-white: #ffffff;
  --color-bg-light: #f8fafc;
  --color-bg-subtle: #f1f5f9;

  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-star: #fbbf24;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.15;
  --line-height-snug: 1.3;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-blue: 0 4px 14px 0 rgba(37, 99, 235, 0.35);
  --shadow-blue-lg: 0 8px 25px 0 rgba(37, 99, 235, 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --header-height: 72px;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-medium);
  background-color: var(--color-bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

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

/* ---------- Utility Classes ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-20) 0;
}

.section--alt {
  background-color: var(--color-bg-light);
}

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

.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary-bg);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
  letter-spacing: 0.025em;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-4);
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #ffffff;
  box-shadow: var(--shadow-blue);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue-lg);
  color: #ffffff;
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn--primary:hover::after {
  opacity: 1;
}

.btn--large {
  padding: var(--space-5) var(--space-10);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

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

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-height);
  transition: all var(--transition-base);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  text-decoration: none;
}

.header__logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: var(--font-size-lg);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.header__nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-medium);
  transition: color var(--transition-fast);
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

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

.header__nav-link:hover::after {
  width: 100%;
}

.header__cta {
  padding: var(--space-2) var(--space-5);
  font-size: var(--font-size-sm);
}

.header__menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.header__menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text-dark);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

/* ---------- Hero ---------- */
.hero {
  padding-top: calc(var(--header-height) + var(--space-16));
  padding-bottom: var(--space-16);
  background: linear-gradient(180deg, var(--color-bg-white) 0%, var(--color-primary-bg) 100%);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero__content {
  max-width: 560px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-primary-bg);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  border: 1px solid var(--color-primary-bg-alt);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-success);
  border-radius: var(--radius-full);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-extrabold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-6);
  letter-spacing: -0.03em;
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-8);
}

.hero__cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.hero__guarantee {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.hero__guarantee svg {
  color: var(--color-success);
  flex-shrink: 0;
}

.hero__image {
  position: relative;
}

.hero__image img {
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
}

.hero__image::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: radial-gradient(ellipse at center, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  z-index: -1;
  border-radius: var(--radius-2xl);
}

/* ---------- Trust Bar ---------- */
.trust-bar {
  padding: var(--space-12) 0;
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  background-color: var(--color-bg-white);
}

.trust-bar__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.trust-bar__item {
  text-align: center;
  padding: var(--space-4);
}

.trust-bar__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-3);
  background-color: var(--color-primary-bg);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-xl);
}

.trust-bar__number {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: var(--space-1);
}

.trust-bar__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ---------- Problem / Solution ---------- */
.problem-solution {
  padding: var(--space-20) 0;
}

.problem-solution__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.problem-solution__side {
  padding: var(--space-8);
  border-radius: var(--radius-xl);
}

.problem-solution__side--problem {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
}

.problem-solution__side--solution {
  background-color: var(--color-primary-bg);
  border: 1px solid var(--color-primary-bg-alt);
}

.problem-solution__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.problem-solution__side--problem .problem-solution__icon {
  background-color: #fef2f2;
  color: #ef4444;
}

.problem-solution__side--solution .problem-solution__icon {
  background-color: var(--color-primary-bg-alt);
  color: var(--color-primary);
}

.problem-solution__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
}

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

.problem-solution__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: var(--color-text-medium);
  line-height: var(--line-height-normal);
}

.problem-solution__list-item svg {
  flex-shrink: 0;
  margin-top: 4px;
}

.problem-solution__side--problem .problem-solution__list-item svg {
  color: #ef4444;
}

.problem-solution__side--solution .problem-solution__list-item svg {
  color: var(--color-primary);
}

/* ---------- Features ---------- */
.features {
  padding: var(--space-20) 0;
  background-color: var(--color-bg-light);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.feature-card {
  background-color: var(--color-bg-white);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-primary-bg-alt);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-primary-bg-alt));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-5);
}

.feature-card__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
}

.feature-card__description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

/* ---------- How It Works ---------- */
.how-it-works {
  padding: var(--space-20) 0;
}

.how-it-works__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
  position: relative;
}

.how-it-works__steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.66% + 28px);
  right: calc(16.66% + 28px);
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary-bg-alt), var(--color-primary), var(--color-primary-bg-alt));
  z-index: 0;
}

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

.step__number {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-blue);
  position: relative;
}

.step__number::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-primary-bg-alt);
}

.step__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-3);
}

.step__description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  max-width: 280px;
  margin: 0 auto;
}

/* ---------- Testimonials ---------- */
.testimonials {
  padding: var(--space-20) 0;
  background-color: var(--color-bg-light);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.testimonial-card {
  background-color: var(--color-bg-white);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.testimonial-card__stars {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: var(--color-star);
  font-size: var(--font-size-lg);
}

.testimonial-card__text {
  font-size: var(--font-size-base);
  color: var(--color-text-medium);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary-bg), var(--color-primary-bg-alt));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.testimonial-card__name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
}

.testimonial-card__role {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ---------- FAQ ---------- */
.faq {
  padding: var(--space-20) 0;
}

.faq__list {
  max-width: 720px;
  margin: var(--space-12) auto 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item--active {
  border-color: var(--color-primary-bg-alt);
  box-shadow: var(--shadow-md);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  text-align: left;
  cursor: pointer;
  background-color: var(--color-bg-white);
  transition: background-color var(--transition-fast);
}

.faq-item__question:hover {
  background-color: var(--color-bg-light);
}

.faq-item__icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-base);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.faq-item--active .faq-item__icon {
  background-color: var(--color-primary);
  color: #ffffff;
  transform: rotate(180deg);
}

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

.faq-item--active .faq-item__answer {
  max-height: 300px;
}

.faq-item__answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

/* ---------- CTA / Pricing ---------- */
.cta-section {
  padding: var(--space-20) 0;
  background: linear-gradient(180deg, var(--color-bg-white) 0%, var(--color-primary-bg) 50%, var(--color-bg-white) 100%);
}

.cta-section__card {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background-color: var(--color-bg-white);
  padding: var(--space-12);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border-light);
  position: relative;
  overflow: hidden;
}

.cta-section__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light), var(--color-primary));
}

.cta-section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-primary-bg);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.cta-section__title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-2);
}

.cta-section__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  margin-bottom: var(--space-8);
}

.cta-section__price {
  margin-bottom: var(--space-2);
}

.cta-section__price-old {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  text-decoration: line-through;
  margin-bottom: var(--space-1);
}

.cta-section__price-current {
  font-size: var(--font-size-6xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-dark);
  line-height: 1;
}

.cta-section__price-current span {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  vertical-align: super;
}

.cta-section__price-info {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
}

.cta-section__features {
  text-align: left;
  margin-bottom: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cta-section__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-base);
  color: var(--color-text-medium);
}

.cta-section__feature svg {
  color: var(--color-success);
  flex-shrink: 0;
}

.cta-section__btn {
  margin-bottom: var(--space-4);
}

.cta-section__secure {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.cta-section__secure svg {
  color: var(--color-text-muted);
}

/* ---------- Footer ---------- */
.footer {
  padding: var(--space-12) 0 var(--space-6);
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-8);
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  text-decoration: none;
  margin-bottom: var(--space-3);
}

.footer__logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: var(--font-size-sm);
}

.footer__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

.footer__links {
  display: flex;
  gap: var(--space-12);
}

.footer__links-group h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer__links-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links-group a {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer__links-group a:hover {
  color: var(--color-primary);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer__disclaimer {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  max-width: 700px;
}

.footer__copyright {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ---------- Legal Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  padding: var(--space-4);
}

.modal-overlay--active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-xl);
  max-width: 680px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: var(--space-8);
  box-shadow: var(--shadow-2xl);
  transform: translateY(20px);
  transition: transform var(--transition-base);
}

.modal-overlay--active .modal {
  transform: translateY(0);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.modal__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.modal__close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  transition: all var(--transition-fast);
  font-size: var(--font-size-xl);
}

.modal__close:hover {
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
}

.modal__content {
  font-size: var(--font-size-sm);
  color: var(--color-text-medium);
  line-height: var(--line-height-relaxed);
}

.modal__content h3 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.modal__content p {
  margin-bottom: var(--space-4);
}

.modal__content ul {
  padding-left: var(--space-5);
  margin-bottom: var(--space-4);
}

.modal__content ul li {
  list-style: disc;
  margin-bottom: var(--space-2);
}

/* ---------- Scroll Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__cta-group {
    justify-content: center;
  }

  .hero__guarantee {
    justify-content: center;
  }

  .hero__image {
    max-width: 500px;
    margin: 0 auto;
  }

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

  .how-it-works__steps::before {
    display: none;
  }

  .testimonials__grid {
    grid-template-columns: 1fr 1fr;
  }

  .problem-solution__grid {
    grid-template-columns: 1fr;
  }

  .footer__top {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
    --font-size-6xl: 2.75rem;
  }

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

  .header__nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-bg-white);
    flex-direction: column;
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
  }

  .header__nav--open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .header__menu-toggle {
    display: flex;
  }

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

  .features__grid {
    grid-template-columns: 1fr;
  }

  .how-it-works__steps {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .testimonials__grid {
    grid-template-columns: 1fr;
  }

  .hero__cta-group {
    flex-direction: column;
  }

  .cta-section__card {
    padding: var(--space-8);
  }

  .footer__links {
    flex-direction: column;
    gap: var(--space-6);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-4);
  }

  .trust-bar__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .cta-section__card {
    padding: var(--space-6);
  }
}