:root {
  --bg: #0A1F35;
  --bg-deep: #00163B;
  --cyan: #0094BF;
  --blue: #0075EE;
  --teal: #00B095;
  --white: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --text-tertiary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.6);
  --border-subtle: rgba(0, 148, 191, 0.2);
  --border-input: rgba(0, 148, 191, 0.3);
  --gradient: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--white);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

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

/* Header */
.site-header {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.site-header .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo {
  display: inline-block;
  width: 180px;
  max-width: 60vw;
}

.logo svg {
  width: 100%;
  height: auto;
  display: block;
}

/* Hero */
.hero {
  flex: 1;
  padding: 3.5rem 0 4rem;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .hero {
    padding: 5rem 0 5rem;
  }
  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 3rem;
  }
}

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

@media (min-width: 900px) {
  .hero-content {
    text-align: left;
  }
}

.badge {
  display: inline-block;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}

h1 {
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

.subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2.25rem;
  max-width: 560px;
}

@media (max-width: 899px) {
  .subtitle {
    margin-left: auto;
    margin-right: auto;
  }
}

/* Form */
.signup-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 480px;
}

@media (max-width: 899px) {
  .signup-form {
    margin-left: auto;
    margin-right: auto;
  }
}

.signup-form ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.signup-form li {
  display: block;
}

.signup-form label {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 0.45rem;
}

.signup-form input[type="text"],
.signup-form input[type="email"] {
  width: 100%;
  padding: 0.95rem 1.15rem;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-input);
  border-radius: 12px;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.signup-form input::placeholder {
  color: var(--text-muted);
}

.signup-form input:focus {
  outline: none;
  border-color: var(--cyan);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(0, 148, 191, 0.15);
}

.signup-form input:invalid:not(:placeholder-shown) {
  border-color: rgba(255, 107, 107, 0.5);
}

.signup-form input[type="submit"] {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--white);
  background: var(--gradient);
  padding: 1rem 2.5rem;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  -webkit-appearance: none;
  appearance: none;
  margin-top: 0.25rem;
}

.signup-form input[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 117, 238, 0.32);
}

.signup-form input[type="submit"]:active {
  transform: translateY(0);
}

.signup-form input[type="submit"]:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}


/* Portrait column */
.hero-portrait-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 320px;
}

@media (min-width: 900px) {
  .hero-portrait-wrap {
    min-height: 560px;
    justify-content: flex-end;
    margin-right: -2rem;
  }
}

@media (min-width: 1200px) {
  .hero-portrait-wrap {
    margin-right: -4rem;
  }
}

.hero-portrait {
  width: 100%;
  height: auto;
  max-width: 720px;
  object-fit: contain;
  filter:
    drop-shadow(0 0 80px rgba(0, 148, 191, 0.35))
    drop-shadow(0 0 140px rgba(0, 176, 149, 0.18));
}

@media (min-width: 900px) {
  .hero-portrait {
    max-width: none;
    max-height: 720px;
    transform: scale(1.08);
    transform-origin: center right;
  }
}

@media (max-width: 899px) {
  .hero-portrait {
    max-height: 360px;
  }
}

.hero-portrait-placeholder {
  width: 100%;
  max-width: 480px;
  min-height: 320px;
  border: 2px dashed rgba(0, 148, 191, 0.4);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  background: rgba(0, 148, 191, 0.04);
}

@media (min-width: 900px) {
  .hero-portrait-placeholder {
    min-height: 480px;
  }
}

/* Thanks page specifics */
.thanks-section {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 4rem 0;
}

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

.thanks-card .badge {
  margin-bottom: 1.5rem;
}

.thanks-card h1 {
  margin-bottom: 1rem;
}

.thanks-card .subtitle {
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 2.5rem;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--white);
  background: var(--gradient);
  padding: 1.1rem 2.5rem;
  border-radius: 12px;
  text-decoration: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 117, 238, 0.32);
}

.cta-button .arrow {
  transition: transform 0.25s ease;
}

.cta-button:hover .arrow {
  transform: translateX(4px);
}

.thanks-hint {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}