/* ========================================
   VideoPipe — Corporate Video Conferencing
   Dark theme, tech-forward, trustworthy
   ======================================== */

:root {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  /* 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;
  --space-32: 8rem;

  /* Color — Dark Corporate Blue */
  --color-bg: #0a0e1a;
  --color-surface: #111628;
  --color-surface-2: #161c33;
  --color-surface-3: #1c2440;
  --color-border: #252e4a;
  --color-border-light: #2e3a5c;

  --color-text: #e2e6f0;
  --color-text-muted: #8892b0;
  --color-text-faint: #5a6380;

  --color-primary: #007AFF;
  --color-primary-hover: #0062cc;
  --color-primary-glow: rgba(0, 122, 255, 0.15);
  --color-primary-glow-strong: rgba(0, 122, 255, 0.3);

  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-error: #f87171;

  /* Fonts */
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 0.875rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px var(--color-primary-glow);

  /* Content */
  --content-max: 1080px;
  --content-narrow: 800px;
}


/* ====================== HEADER ====================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.header--hidden { transform: translateY(-100%); }

.header__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.logo__text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: var(--space-6);
}

.nav__link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-interactive);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease-out);
}

.nav__link:hover { color: var(--color-text); }
.nav__link:hover::after { transform: scaleX(1); }

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

.burger {
  display: none;
  color: var(--color-text);
  padding: var(--space-2);
}


/* ====================== BUTTONS ====================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: none;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover {
  color: var(--color-text);
  border-color: var(--color-border-light);
  background: var(--color-surface);
}

.btn--lg {
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-base);
}

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


/* ====================== MOBILE NAV ====================== */

.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-out), visibility 0.3s;
}

.mobile-nav--open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-8);
}

.mobile-nav__link {
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
}

.mobile-nav__divider {
  width: 60px;
  height: 1px;
  background: var(--color-border);
}


/* ====================== HERO ====================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--space-32) + var(--space-8)) var(--space-6) var(--space-16);
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  color: var(--color-text);
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  top: -200px;
  right: -200px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--color-primary-glow-strong) 0%, transparent 60%);
  pointer-events: none;
  animation: glow-pulse 6s ease-in-out infinite;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.hero__content {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
  width: 100%;
}

.hero__badge {
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background: rgba(0, 122, 255, 0.1);
  border: 1px solid rgba(0, 122, 255, 0.25);
  border-radius: var(--radius-full);
  color: var(--color-primary);
  font-size: var(--text-xs);
  font-weight: 600;
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__title {
  grid-column: 1;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1.1;
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary), #64b5f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  grid-column: 1;
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 520px;
  line-height: 1.7;
}

.hero__actions {
  grid-column: 1;
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__stats {
  grid-column: 1;
  display: flex;
  gap: var(--space-8);
  align-items: center;
  padding-top: var(--space-4);
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.hero__stat-suffix {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
}

.hero__stat-label {
  display: block;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  margin-top: var(--space-1);
}

/* Hero Visual — Fake Conference Screen */
.hero__visual {
  grid-column: 2;
  grid-row: 1 / -1;
}

.hero__screen {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 80px rgba(0, 122, 255, 0.08);
}

.hero__screen-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}

.hero__screen-dots {
  display: flex;
  gap: 6px;
}

.hero__screen-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border-light);
}

.hero__screen-dots span:first-child { background: #f87171; }
.hero__screen-dots span:nth-child(2) { background: #fbbf24; }
.hero__screen-dots span:nth-child(3) { background: #34d399; }

.hero__screen-title {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.hero__screen-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-error);
  font-weight: 600;
}

.hero__screen-rec {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-error);
  animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero__screen-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  padding: 2px;
  aspect-ratio: 16 / 10;
}

.hero__participant {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-3);
}

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

.hero__participant-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: var(--color-primary);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
}

.hero__participant-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-2) var(--space-3);
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: white;
  font-size: var(--text-xs);
  font-weight: 500;
}

.hero__screen-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-border);
}

.hero__tool {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  color: var(--color-text);
  background: var(--color-surface-3);
  transition: background var(--transition-interactive);
}

.hero__tool:hover { background: var(--color-border); }

.hero__tool--end {
  background: var(--color-error);
  color: white;
}
.hero__tool--end:hover { background: #ef4444; }


/* ====================== TICKER ====================== */

.ticker {
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-8);
  overflow: hidden;
}

.ticker__label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

.ticker__track {
  overflow: hidden;
  flex: 1;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.ticker__list {
  display: flex;
  gap: var(--space-10);
  animation: ticker-scroll 40s linear infinite;
  width: max-content;
}

.ticker__item {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-faint);
  white-space: nowrap;
  transition: color 0.3s;
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}


/* ====================== SECTIONS ====================== */

.section {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
  max-width: var(--content-max);
  margin: 0 auto;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section__desc {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}


/* ====================== FEATURES ====================== */

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.feature-card:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-glow);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.feature-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.feature-card__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}


/* ====================== SECURITY ====================== */

.security {
  overflow: hidden;
}

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

.security__content .section__title { text-align: left; }
.security__content .section__desc { margin: 0; text-align: left; }

.security__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.security__item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.security__item > [data-lucide] {
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.security__item h4 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.security__item p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.security__visual {
  position: relative;
}

.security__visual img {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.security__badge {
  position: absolute;
  bottom: var(--space-6);
  left: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  color: var(--color-success);
  font-size: var(--text-sm);
  font-weight: 600;
}


/* ====================== PRICING ====================== */

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}

.pricing-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.pricing-card:hover {
  border-color: var(--color-border-light);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 60px var(--color-primary-glow);
  transform: scale(1.03);
}

.pricing-card__badge {
  position: absolute;
  top: calc(-1 * var(--space-3));
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-4);
  background: var(--color-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.pricing-card__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-1);
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin: var(--space-6) 0;
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
}

.pricing-card__period {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.pricing-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  flex: 1;
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.pricing-card__features li [data-lucide] {
  color: var(--color-success);
  flex-shrink: 0;
}


/* ====================== FAQ ====================== */

.faq__list {
  max-width: var(--content-narrow);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-interactive);
}

.faq__item[open] {
  border-color: var(--color-border-light);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
  list-style: none;
  user-select: none;
}

.faq__question::-webkit-details-marker { display: none; }

.faq__question [data-lucide] {
  color: var(--color-text-faint);
  transition: transform 0.3s var(--ease-out);
  flex-shrink: 0;
  margin-left: var(--space-4);
}

.faq__item[open] .faq__question [data-lucide] {
  transform: rotate(180deg);
}

.faq__answer {
  padding: 0 var(--space-6) var(--space-5);
}

.faq__answer p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}


/* ====================== CTA / FORM ====================== */

.cta {
  position: relative;
  background: var(--color-surface);
  max-width: 100%;
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
  overflow: hidden;
}

.cta__bg-dots {
  position: absolute;
  inset: 0;
  color: var(--color-text);
  pointer-events: none;
}

.cta__content {
  position: relative;
  max-width: var(--content-narrow);
  margin: 0 auto;
  text-align: center;
}

.cta__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.cta__desc {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

.cta__form {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

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

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238892b0' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.cta__privacy {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.cta__privacy a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cta__success {
  text-align: center;
  padding: var(--space-12) 0;
}

.cta__success-icon {
  color: var(--color-success);
  margin-bottom: var(--space-4);
  display: flex;
  justify-content: center;
}

.cta__success h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.cta__success p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  max-width: 400px;
  margin: 0 auto;
}


/* ====================== MODAL ====================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease-out), visibility 0.3s;
  padding: var(--space-6);
}

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

.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  max-width: 420px;
  width: 100%;
  position: relative;
  transform: scale(0.95) translateY(20px);
  transition: transform 0.3s var(--ease-out);
}

.modal-overlay.modal--open .modal {
  transform: scale(1) translateY(0);
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  color: var(--color-text-muted);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-interactive), background var(--transition-interactive);
}

.modal__close:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

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

.modal__header svg {
  margin: 0 auto var(--space-4);
}

.modal__header h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.modal__header p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

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

.modal__note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border-radius: var(--radius-md);
}

.modal__note a {
  color: var(--color-primary);
  text-decoration: underline;
}

.modal__note [data-lucide] {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.modal__error[hidden] {
  display: none !important;
}

.modal__error {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-top: var(--space-4);
  line-height: 1.5;
}

.modal__error [data-lucide] {
  flex-shrink: 0;
  margin-top: 2px;
}


/* ====================== FOOTER ====================== */

.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) var(--space-6) var(--space-8);
  background: var(--color-surface);
}

.footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
}

.footer__desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-top: var(--space-4);
  max-width: 320px;
}

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

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

.footer__col h4 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.footer__col a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition-interactive);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal a {
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.footer__legal a:hover { color: var(--color-text-muted); }


/* ====================== SCROLL ANIMATIONS ====================== */

.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade 1s linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* JS-based fallback for browsers without scroll-driven animations */
.fade-in--js {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

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


/* ====================== RESPONSIVE ====================== */

@media (max-width: 1024px) {
  .hero__content {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    grid-column: 1;
    grid-row: auto;
  }

  .hero__badge,
  .hero__title,
  .hero__subtitle,
  .hero__actions,
  .hero__stats {
    grid-column: 1;
  }

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

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

  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .pricing-card--featured { transform: none; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .header__actions .btn--ghost { display: none; }
  .burger { display: flex; }

  .hero {
    padding-top: calc(var(--space-24) + var(--space-8));
    min-height: auto;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  .hero__stat-divider { display: none; }

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

  .form-row {
    grid-template-columns: 1fr;
  }

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

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

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

  .ticker {
    flex-direction: column;
    gap: var(--space-3);
  }
}

@media (max-width: 480px) {
  .hero__screen-title { display: none; }
  .hero__screen-controls span:last-child { display: none; }

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