/* ==========================================================
   CARBON STEAK HOUSE
   Design System v1.0
========================================================== */

:root {
  /* COLORS */

  --color-background: #0d0d0d;
  --color-surface: #171717;
  --color-gold: #b08d57;
  --color-gold-hover: #c79c5c;
  --color-white: #f5f5f5;
  --color-gray: #a6a6a6;
  --color-border: #2d2d2d;

  /* TYPOGRAPHY */

  --font-heading: "Bebas Neue", sans-serif;
  --font-body: "Barlow Condensed", sans-serif;

  /* SPACING */

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;

  /* BORDER */

  --radius: 14px;

  /* TRANSITIONS */

  --transition: 300ms ease;
}

/* ==========================================================
   RESET
========================================================== */

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

html {
  font-size: 16px;
}

body {
  background: var(--color-background);
  color: var(--color-white);
  font-family: var(--font-body);
}

/* ==========================================================
   PAGE
========================================================== */

.reservation-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 80px 24px;
}

/* ==========================================================
   RESERVATION CARD
========================================================== */

.reservation-card {
  width: 100%;
  max-width: 760px;
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
}

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

.reservation-header {
  margin-bottom: var(--space-lg);
}

.eyebrow {
  margin-bottom: var(--space-sm);
  color: var(--color-gold);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.reservation-header h1 {
  margin-bottom: var(--space-sm);
  font-family: var(--font-heading);
  font-size: clamp(2.7rem, 7vw, 4.8rem);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.intro {
  max-width: 560px;
  color: var(--color-gray);
  font-size: 1.15rem;
  line-height: 1.5;
}

/* ==========================================================
   FORM LAYOUT
========================================================== */

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

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-group label {
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ==========================================================
   FORM CONTROLS
========================================================== */

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 15px 16px;
  background: #101010;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1.05rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  outline: none;
  transition:
    border-color var(--transition),
    background var(--transition),
    box-shadow var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #707070;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  background: #121212;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(176, 141, 87, 0.12);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group select {
  cursor: pointer;
}

/* ==========================================================
   BUTTON
========================================================== */

.submit-button {
  width: 100%;
  padding: 17px 24px;
  background: var(--color-gold);
  color: #0d0d0d;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition:
    background var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.submit-button:hover {
  background: var(--color-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(176, 141, 87, 0.2);
}

.submit-button:active {
  transform: translateY(0);
}

/* ==========================================================
   DISCLAIMER
========================================================== */

.form-disclaimer {
  color: var(--color-gray);
  font-size: 0.95rem;
  line-height: 1.4;
  text-align: center;
}

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

@media (max-width: 680px) {
  .reservation-page {
    align-items: flex-start;
    padding: 24px 16px;
  }

  .reservation-card {
    padding: 32px 22px;
  }

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

  .reservation-header h1 {
    font-size: 3rem;
  }
}

/* ==========================================================
   SUCCESS MESSAGE
========================================================== */

.success-message {
  text-align: center;
  padding: var(--space-md) 0;
}

.success-message[hidden] {
  display: none;
}

.success-icon {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  margin: 0 auto var(--space-md);
  background: rgba(176, 141, 87, 0.12);
  color: var(--color-gold);
  font-size: 2rem;
  border: 1px solid var(--color-gold);
  border-radius: 50%;
}

.success-message h2 {
  margin-bottom: var(--space-sm);
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 7vw, 4rem);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.success-summary {
  max-width: 520px;
  margin: 0 auto var(--space-sm);
  color: var(--color-white);
  font-size: 1.2rem;
  line-height: 1.5;
}

.success-note {
  max-width: 520px;
  margin: 0 auto var(--space-lg);
  color: var(--color-gray);
  font-size: 1rem;
  line-height: 1.5;
}

.secondary-button {
  padding: 15px 24px;
  background: transparent;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition:
    border-color var(--transition),
    color var(--transition),
    transform var(--transition);
}

.secondary-button:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
  transform: translateY(-2px);
}