/* =========================================================
   LA Surfing School - main.css
   Mobile-first. Prettier defaults (2-space indent).
   ========================================================= */

/* ---------------------------------------------------------
   Custom properties
   --------------------------------------------------------- */

:root {
  --color-ocean: #0a6494;
  --color-ocean-dark: #075478;
  --color-ocean-light: #e6f2f8;
  --color-sand: #f7ede0;
  --color-white: #ffffff;
  --color-dark: #1a2535;
  --color-dark-muted: #3d4f63;
  --color-gray: #6b7c93;
  --color-gray-light: #f0f4f8;
  --color-border: #d4dde6;

  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --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;
  --line-height-base: 1.6;
  --line-height-tight: 1.25;

  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  --max-width: 1100px;
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgb(0 0 0 / 0.08);
  --shadow-md: 0 4px 12px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 8px 24px rgb(0 0 0 / 0.12);

  --transition-base: 0.2s ease;

  /* -----------------------------------------------------------------
     Breakpoints
     CSS custom properties cannot be used inside @media queries.
     These variables document the canonical values only.
     Search the literal pixel value to find every usage.

     xs  (portrait phone)      0       - 479px
     sm  (landscape phone)     480px   - 767px
     md  (tablet)              768px   - 1023px
     lg  (desktop)             1024px+

     --bp-xs-max:  479px
     --bp-sm-min:  480px
     --bp-sm-max:  767px
     --bp-md-min:  768px
     --bp-md-max:  1023px
     --bp-lg-min:  1024px
     ----------------------------------------------------------------- */
}

/* ---------------------------------------------------------
   Reset and base
   --------------------------------------------------------- */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  /* Prevent any element from causing horizontal scroll at the document level. */
  overflow-x: clip;
}

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-dark);
  background-color: var(--color-white);
}

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

a {
  color: var(--color-ocean);
  text-decoration: underline;
}

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

ul {
  list-style: none;
}

/* ---------------------------------------------------------
   Layout
   --------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--spacing-lg);
}

.section {
  padding-block: var(--spacing-3xl);
}

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

.section--cta {
  background-color: var(--color-ocean);
  color: var(--color-white);
  text-align: center;
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-dark);
}

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  /* min-height satisfies Apple HIG and Material Design 44px touch target minimum.
     Padding adds visual breathing room on top of that floor. */
  min-height: 44px;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base);
}

.btn--primary {
  background-color: var(--color-ocean);
  color: var(--color-white);
  border-color: var(--color-ocean);
}

.btn--primary:hover {
  background-color: var(--color-ocean-dark);
  border-color: var(--color-ocean-dark);
  color: var(--color-white);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-ocean);
  border-color: var(--color-white);
}

.btn--white:hover {
  background-color: var(--color-ocean-light);
  border-color: var(--color-ocean-light);
  color: var(--color-ocean-dark);
}

.btn--sm {
  padding: 0.4rem 0.875rem;
  font-size: var(--font-size-sm);
}

.btn--lg {
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-lg);
}

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

/* ---------------------------------------------------------
   Header
   --------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* flex-wrap: wrap lets the nav drop to a second row when accessibility
     large text makes the logo + nav too wide to share one row. At normal
     text sizes everything fits on one row and wrap never fires. */
  flex-wrap: wrap;
  /* Compact vertical padding - header should not compete for screen real estate
     on portrait phones. The 44px min-height on buttons provides the touch
     target floor without needing extra padding here. */
  gap: var(--spacing-sm);
  padding-block: 4px;
}

.site-logo {
  /* flex: 1 1 auto lets the logo absorb any space squeeze.
     min-width: 0 is required for flex children to shrink below content size.
     No overflow: hidden here - the nav's flex: 0 0 auto already prevents
     real overflow, and hidden was clipping the final character on small screens. */
  flex: 1 1 auto;
  min-width: 0;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.site-logo-img {
  height: 65px;
  width: auto;
  display: block;
  padding-bottom: 2px;
}

.site-logo-img--footer {
  height: 40px;
  /* White glow traces the PNG alpha channel to lift dark logo elements
     off the black footer background. Replace with a light-on-dark logo
     variant when one is available. */
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, 0.6)) drop-shadow(0 0 1px rgba(255, 255, 255, 0.3));
}

.site-nav {
  /* flex: 0 0 auto prevents the nav from shrinking - the logo absorbs
     any squeeze instead. */
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-dark-muted);
  text-decoration: none;
  padding-inline: 0.25rem;
}

.nav-link:hover {
  color: var(--color-ocean);
}

.nav-link--active {
  color: var(--color-ocean);
  font-weight: 600;
}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */

.hero {
  background-image: linear-gradient(rgba(0, 0, 0, 0.48), rgba(0, 0, 0, 0.48)),
    url("/static/images/wave-bg.52e292eaac3e.jpg");
  background-size: cover;
  background-position: center;
  padding-block: var(--spacing-3xl);
}

.hero-inner {
  max-width: 680px;
}

.hero h1 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.hero-lead {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.88);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.55);
  margin-bottom: var(--spacing-xl);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* ---------------------------------------------------------
   Features grid
   --------------------------------------------------------- */

.features-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.feature-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--border-radius);
  background-color: var(--color-ocean-light);
  color: var(--color-ocean);
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark);
}

.feature-card p {
  color: var(--color-dark-muted);
  line-height: var(--line-height-base);
}

/* ---------------------------------------------------------
   CTA section
   --------------------------------------------------------- */

.cta-inner {
  max-width: 600px;
  margin-inline: auto;
}

.section--cta h2 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

.section--cta p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
}

/* ---------------------------------------------------------
   Page header (interior pages)
   --------------------------------------------------------- */

.page-header {
  background-color: var(--color-sand);
  padding-block: var(--spacing-2xl);
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  color: var(--color-dark);
  margin-bottom: var(--spacing-md);
}

.page-header-lead {
  font-size: var(--font-size-lg);
  color: var(--color-dark-muted);
  max-width: 600px;
}

/* ---------------------------------------------------------
   Lessons grid
   --------------------------------------------------------- */

.lessons-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.lesson-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.lesson-card:hover {
  box-shadow: var(--shadow-md);
}

.lesson-card-header {
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: var(--color-ocean);
  color: var(--color-white);
}

.lesson-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  line-height: var(--line-height-tight);
}

.lesson-card-body {
  flex: 1;
  padding: var(--spacing-lg) var(--spacing-xl) var(--spacing-xl);
}

.lesson-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.lesson-highlights li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-dark-muted);
}

.lesson-highlights svg {
  color: var(--color-ocean);
  flex-shrink: 0;
}

.lesson-pricing-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-md);
}

.lesson-pricing-table th {
  text-align: left;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray);
  padding: 0.375rem var(--spacing-xs) 0.375rem 0;
  border-bottom: 1px solid var(--color-border);
}

.lesson-pricing-table td {
  padding: 0.625rem var(--spacing-xs) 0.625rem 0;
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.lesson-pricing-table tbody tr:last-child td {
  border-bottom: none;
}

.lesson-pricing-table td:nth-child(2) {
  font-weight: 600;
  white-space: nowrap;
}

.lesson-pricing-table td:last-child {
  text-align: right;
  padding-right: 0;
}

.lesson-savings {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-ocean);
  background-color: var(--color-ocean-light);
  border-radius: var(--border-radius-sm);
  padding: 0.125rem 0.375rem;
  margin-left: 0.25rem;
}

.lessons-note {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-lg);
  background-color: var(--color-gray-light);
  border-radius: var(--border-radius);
  color: var(--color-dark-muted);
  font-size: var(--font-size-sm);
  text-align: center;
}

.lessons-note a {
  color: var(--color-ocean);
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */

.site-footer {
  background-color: var(--color-dark);
  color: var(--color-white);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  padding-block: var(--spacing-sm);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  margin-top: 2px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgb(255 255 255 / 0.1);
  padding-block: var(--spacing-md);
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  text-align: center;
}

/* ---------------------------------------------------------
   Nav label helpers
   Show the full label by default; swap to short on xs.
   (See bp-xs-max: 479px in breakpoint docs above.)
   --------------------------------------------------------- */

.nav-cta-short {
  display: none;
}

.nav-cta-full {
  display: inline;
}

/* ---------------------------------------------------------
   Responsive - xs only: portrait phones (max 479px)
   --------------------------------------------------------- */

@media (max-width: 479px) {

  /* Swap nav button label to short form so it fits without overflow. */
  .nav-cta-full {
    display: none;
  }

  .nav-cta-short {
    display: inline;
  }

  /* Step the logo down one font size to give it comfortable clearance
     on 375px devices. Saves ~15px of width. */
  .site-logo {
    font-size: var(--font-size-base);
  }

  /* Tighten section vertical padding - every pixel matters on a
     small portrait screen. */
  .section {
    padding-block: var(--spacing-2xl);
  }

  /* Reduce hero height so content is visible without scrolling. */
  .hero {
    padding-block: var(--spacing-2xl);
  }

  .hero h1 {
    font-size: var(--font-size-2xl);
  }

  .hero-lead {
    font-size: var(--font-size-base);
  }

  /* Tighten page header on interior pages. */
  .page-header {
    padding-block: var(--spacing-lg);
  }

  .page-header h1 {
    font-size: var(--font-size-2xl);
  }

  /* Booking form: reduce padding so the form breathes without wasting
     vertical space on a small screen. */
  .booking-form {
    padding: var(--spacing-lg);
  }
}

/* ---------------------------------------------------------
   Responsive - sm+: landscape phones and up (480px+)
   --------------------------------------------------------- */

@media (min-width: 480px) {
  .hero h1 {
    font-size: var(--font-size-3xl);
  }
}

/* ---------------------------------------------------------
   Responsive - md+: tablets and up (768px+)
   --------------------------------------------------------- */

@media (min-width: 768px) {
  .hero h1 {
    font-size: var(--font-size-4xl);
  }

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

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

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .footer-contact {
    align-items: flex-end;
  }
}

/* ---------------------------------------------------------
   Responsive - lg+: desktop (1024px+)
   --------------------------------------------------------- */

@media (min-width: 1024px) {
  .hero {
    padding-block: var(--spacing-3xl) calc(var(--spacing-3xl) * 1.5);
  }

  .hero h1 {
    font-size: 3rem;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* ---------------------------------------------------------
   Forms
   --------------------------------------------------------- */

.form-layout {
  display: grid;
  gap: var(--spacing-2xl);
  align-items: start;
}

.booking-form {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
}

.form-errors {
  background-color: #fef2f2;
  border: 1px solid #fca5a5;
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  color: #dc2626;
  font-size: var(--font-size-sm);
}

.form-errors--warning {
  background-color: #fffbeb;
  border-color: #fcd34d;
  color: #92400e;
  margin-bottom: var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group:last-of-type {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--spacing-xs);
}

.form-required {
  color: #dc2626;
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  color: var(--color-dark);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-ocean);
  box-shadow: 0 0 0 3px rgb(10 100 148 / 0.15);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7c93' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

.form-input--date {
  max-width: 220px;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-help {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  margin-top: var(--spacing-xs);
}

.form-error {
  font-size: var(--font-size-sm);
  color: #dc2626;
  margin-top: var(--spacing-xs);
}

.form-group--error .form-input,
.form-group--error .form-select,
.form-group--error .form-textarea {
  border-color: #dc2626;
}

.form-actions {
  margin-top: var(--spacing-xl);
}

.lesson-selects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

.lesson-price-display {
  margin-top: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-ocean-light);
  border-radius: var(--border-radius-sm);
  color: var(--color-ocean-dark);
  font-size: var(--font-size-sm);
}

/* ---------------------------------------------------------
   Booking sidebar
   --------------------------------------------------------- */

.sidebar-card {
  background-color: var(--color-gray-light);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.sidebar-card:last-child {
  margin-bottom: 0;
}

.sidebar-card h2 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--spacing-md);
}

.sidebar-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.sidebar-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-dark-muted);
  line-height: 1.5;
}

.sidebar-list svg {
  color: var(--color-ocean);
  flex-shrink: 0;
  margin-top: 2px;
}

.sidebar-card p {
  margin-bottom: var(--spacing-sm);
}

.sidebar-card p:last-child {
  margin-bottom: 0;
}

.sidebar-contact {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-ocean);
  text-decoration: none;
}

.sidebar-contact:hover {
  color: var(--color-ocean-dark);
  text-decoration: underline;
}

/* ---------------------------------------------------------
   Booking confirmation
   --------------------------------------------------------- */

.confirmation-card {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  padding: var(--spacing-2xl) 0;
}

.confirmation-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: var(--color-ocean-light);
  color: var(--color-ocean);
  margin-inline: auto;
  margin-bottom: var(--spacing-lg);
}

.confirmation-card h1 {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: var(--spacing-md);
}

.confirmation-lead {
  font-size: var(--font-size-lg);
  color: var(--color-dark-muted);
  margin-bottom: var(--spacing-2xl);
}

.confirmation-details {
  background-color: var(--color-gray-light);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: left;
  margin-bottom: var(--spacing-xl);
}

.confirmation-details h2 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--spacing-md);
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.detail-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-sm);
}

.detail-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.detail-row dt {
  font-weight: 600;
  color: var(--color-dark);
}

.detail-row dd {
  color: var(--color-dark-muted);
}

.confirmation-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-ocean);
  border-color: var(--color-ocean);
}

.btn--outline:hover {
  background-color: var(--color-ocean-light);
  color: var(--color-ocean-dark);
  border-color: var(--color-ocean-dark);
}

.confirmation-contact {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
}

/* ---------------------------------------------------------
   Responsive - form layout: side-by-side at md+ (768px+)
   --------------------------------------------------------- */

@media (min-width: 768px) {
  .form-layout {
    grid-template-columns: 1fr 300px;
  }
}