/* ========================================
   VARIABLES & RESET
   ======================================== */
:root {
  --color-bg: #FFFFFF;
  --color-surface: #F7F5F2;
  --color-surface-alt: #EFECE8;
  --color-accent: #D97757;
  --color-accent-hover: #C45E3E;
  --color-accent-soft: rgba(217, 119, 87, 0.1);
  --color-text-primary: #191918;
  --color-text-secondary: #6B6B6B;
  --color-text-tertiary: #999999;
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: rgba(0, 0, 0, 0.15);

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'DM Serif Display', Georgia, serif;

  --container-max: 1120px;
  --container-narrow: 720px;
  --section-pad: 100px;
  --section-pad-mobile: 56px;
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* ========================================
   UTILITIES
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.2;
  margin-bottom: 40px;
  max-width: var(--container-narrow);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9375rem;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  letter-spacing: -0.01em;
}

.btn--primary {
  background: var(--color-text-primary);
  color: #fff;
  padding: 12px 28px;
}

.btn--primary:hover {
  background: #333;
}

.btn--large {
  padding: 16px 36px;
  font-size: 1rem;
}

.btn--accent {
  background: var(--color-accent);
  color: #fff;
  padding: 12px 28px;
}

.btn--accent:hover {
  background: var(--color-accent-hover);
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: transparent;
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-text-primary);
}

.navbar__cta {
  font-size: 0.875rem;
  padding: 10px 24px;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ========================================
   HERO
   ======================================== */
.hero {
  padding-top: 140px;
  padding-bottom: var(--section-pad);
  background: var(--color-surface);
  position: relative;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
  line-height: 1.7;
}

.hero__proof {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.proof-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.proof-badge__number {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-accent);
  flex-shrink: 0;
}

.proof-badge__text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}

.hero__cta-sub {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  padding-left: 4px;
}

/* Video placeholder */
.video-placeholder {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.video-inner {
  position: relative;
  aspect-ratio: 16 / 9;
}

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

.video-inner iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
  z-index: 2;
}

.play-btn:hover {
  transform: translate(-50%, -50%) scale(1.08);
}

.video-placeholder--large {
  max-width: 960px;
  margin: 0 auto;
}

/* ========================================
   FEATURES
   ======================================== */
.features {
  padding: var(--section-pad) 0;
  background: var(--color-bg);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 32px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.feature-card__icon {
  color: var(--color-accent);
  margin-bottom: 16px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  border-radius: 10px;
}

.feature-card__title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 8px;
  line-height: 1.3;
  color: var(--color-text-primary);
}

.feature-card__desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========================================
   AUTHORITY
   ======================================== */
.authority {
  padding: var(--section-pad) 0;
  background: var(--color-surface);
}

.authority__card {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 48px 40px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: 16px;
  text-align: center;
}

.authority__stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.authority__stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.authority__stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--color-accent);
  line-height: 1;
}

.authority__stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-top: 8px;
  max-width: 180px;
  line-height: 1.5;
}

.authority__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   DEMO
   ======================================== */
.demo {
  padding: var(--section-pad) 0;
  background: var(--color-bg);
}

.demo .section-title {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  padding: var(--section-pad) 0;
  background: var(--color-text-primary);
  color: #fff;
}

.cta-section__inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin-bottom: 16px;
  color: #fff;
}

.cta-section__subtitle {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 36px;
}

.cta-section__action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.cta-section__action .btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.cta-section__action .btn--primary:hover {
  background: var(--color-accent-hover);
}

.cta-section__sub {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-text-primary);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

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

/* ========================================
   WAITLIST MODAL
   ======================================== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  display: flex;
  opacity: 1;
}

.modal {
  background: var(--color-bg);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 460px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  position: relative;
  transform: translateY(16px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.12);
}

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

.modal__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
  font-size: 1.25rem;
  line-height: 1;
}

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

.modal__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.modal__title {
  font-family: var(--font-display);
  font-size: 1.625rem;
  line-height: 1.2;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.modal__subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.5;
}

.modal__form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-primary);
}

.form-field input {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text-primary);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-field input::placeholder {
  color: var(--color-text-tertiary);
}

.form-field input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-field select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text-primary);
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10' fill='none' stroke='%23888' stroke-width='1.5' stroke-linecap='round'%3E%3Cpolyline points='2,4 5,7 8,4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-field select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-field select option[value=""] {
  color: var(--color-text-tertiary);
}

.phone-input-wrap {
  position: relative;
  display: flex;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  background: var(--color-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.phone-input-wrap:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.phone-input-wrap input[type="tel"] {
  border: none;
  background: transparent;
  outline: none;
  box-shadow: none;
  flex: 1;
  min-width: 0;
}

.phone-input-wrap input[type="tel"]:focus {
  border: none;
  box-shadow: none;
}

.phone-country-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px 0 12px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-primary);
  white-space: nowrap;
  border-right: 1px solid var(--color-border-strong);
  margin-right: 4px;
}

.phone-country-btn svg {
  opacity: 0.5;
  margin-left: 2px;
}

.phone-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  z-index: 100;
  max-height: 220px;
  overflow: hidden;
  flex-direction: column;
}

.phone-dropdown.open {
  display: flex;
}

.phone-dropdown__search {
  padding: 10px 12px;
  border: none;
  border-bottom: 1px solid var(--color-border-strong);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-primary);
  outline: none;
  width: 100%;
  box-sizing: border-box;
}

.phone-dropdown__list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  overflow-y: auto;
  flex: 1;
}

.phone-dropdown__list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.875rem;
  cursor: pointer;
  color: var(--color-text-primary);
}

.phone-dropdown__list li:hover {
  background: var(--color-accent-soft);
}

.phone-dropdown__list li .country-dial {
  color: var(--color-text-tertiary);
  margin-left: auto;
}

.modal__submit {
  width: 100%;
  padding: 14px 24px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  border: none;
  border-radius: 100px;
  background: var(--color-text-primary);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s ease;
  margin-top: 8px;
}

.modal__submit:hover {
  background: #333;
}

.modal__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.modal__success {
  display: none;
  text-align: center;
  padding: 20px 0;
}

.modal__success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.modal__success-title {
  font-family: var(--font-display);
  font-size: 1.375rem;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.modal__success-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.modal__error {
  display: none;
  font-size: 0.8125rem;
  color: #D94444;
  background: #FEF2F2;
  padding: 10px 14px;
  border-radius: 8px;
  margin-top: 4px;
}

/* ========================================
   RESPONSIVE — TABLET (768px – 1024px)
   ======================================== */
@media (max-width: 1024px) {
  :root {
    --section-pad: 80px;
  }

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

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

/* ========================================
   RESPONSIVE — MOBILE (< 768px)
   ======================================== */
@media (max-width: 767px) {
  :root {
    --section-pad: var(--section-pad-mobile);
  }

  .container {
    padding: 0 20px;
  }

  .section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: 28px;
  }

  /* Navbar mobile */
  .navbar__cta {
    display: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .navbar__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

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

  /* Hero mobile */
  .hero {
    padding-top: 100px;
    padding-bottom: var(--section-pad-mobile);
  }

  .hero__title {
    font-size: clamp(1.75rem, 7vw, 2.25rem);
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero__cta .btn--large {
    width: 100%;
    padding: 16px 24px;
  }

  /* Features mobile */
  .features__grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .feature-card {
    padding: 24px;
  }

  /* Authority mobile */
  .authority__card {
    padding: 32px 24px;
  }

  .authority__stats {
    gap: 28px;
  }

  .authority__stat-number {
    font-size: 2rem;
  }

  /* CTA section mobile */
  .cta-section__action .btn--large {
    width: 100%;
  }

  /* Footer mobile */
  .footer__inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer__links {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }

  /* Modal mobile */
  .modal {
    padding: 36px 28px;
  }
}