/* assets/css/main.css */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700;900&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --color-bg:           #0a0a12;   /* Deep navy-black background */
  --color-bg-surface:   #12121e;   /* Card / section surface */
  --color-bg-elevated:  #1a1a2e;   /* Elevated card surface */
  --color-accent:       #c9a84c;   /* Deep gold — primary accent */
  --color-accent-light: #e8c96e;   /* Gold highlight */
  --color-accent-glow:  rgba(201,168,76,0.18); /* Gold glow */
  --color-secondary:    #8b2be2;   /* Rich violet — secondary accent */
  --color-secondary-light: #b45af2;
  --color-text-primary: #f0ece0;   /* Warm off-white */
  --color-text-muted:   #9a9080;   /* Muted warm grey */
  --color-border:       rgba(201,168,76,0.2);
  --color-border-strong:rgba(201,168,76,0.45);
  --color-danger:       #e05252;
  --color-success:      #52c97a;
  --radius-sm:          6px;
  --radius-md:          12px;
  --radius-lg:          20px;
  --radius-xl:          32px;
  --shadow-gold:        0 4px 32px rgba(201,168,76,0.18);
  --shadow-card:        0 8px 40px rgba(0,0,0,0.5);
  --transition:         0.28s cubic-bezier(0.4,0,0.2,1);
  --font-heading:       'Playfair Display', serif;
  --font-body:          'Inter', sans-serif;
  --font-mono:          'JetBrains Mono', monospace;
  --container:          1200px;
  --container-narrow:   860px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  line-height: 1.25;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  letter-spacing: -0.01em;
  position: relative;
  padding-bottom: 12px;
  margin-bottom: 1.5rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 2px;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--color-text-primary);
}

p.lead {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover, a:focus-visible {
  color: var(--color-accent-light);
  outline: none;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-ghost, .btn-full {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #a38234);
  color: #000;
  box-shadow: 0 4px 15px rgba(201,168,76,0.3);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
  box-shadow: 0 6px 20px rgba(201,168,76,0.5);
  transform: translateY(-2px);
  outline: none;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--color-bg-elevated);
  border-color: var(--color-border);
  color: var(--color-text-primary);
}

.btn-secondary:hover, .btn-secondary:focus-visible {
  background-color: var(--color-bg-surface);
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  transform: translateY(-2px);
  outline: none;
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-ghost {
  background-color: transparent;
  border-color: transparent;
  color: var(--color-text-muted);
}

.btn-ghost:hover, .btn-ghost:focus-visible {
  color: var(--color-accent-light);
  outline: none;
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
}

/* Accessibility */
.skip-to-content {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-accent);
  color: #000;
  padding: 10px 20px;
  z-index: 10000;
  transition: top 0.2s;
  font-weight: bold;
}

.skip-to-content:focus {
  top: 0;
  outline: 2px solid #fff;
}

:focus-visible {
  outline: 2px dashed var(--color-accent);
  outline-offset: 4px;
}

/* Layout containers */
.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Section styling */
section {
  padding: 5rem 0;
  position: relative;
}

.section-bg-surface {
  background-color: var(--color-bg-surface);
}

.section-bg-elevated {
  background-color: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.section-header {
  max-width: 700px;
  margin: 0 auto 3.5rem auto;
  text-align: center;
}

.section-header h2::after {
  left: 50%;
  transform: translateX(-50%);
}

.section-header p {
  color: var(--color-text-muted);
}

/* Forms layout controls */
.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
  width: 100%;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15);
  outline: none;
}

.form-group input.invalid,
.form-group select.invalid,
.form-group textarea.invalid {
  border-color: var(--color-danger);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.form-checkbox input[type="checkbox"] {
  appearance: none;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  width: 18px;
  height: 18px;
  border-radius: 4px;
  display: inline-grid;
  place-content: center;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 3px;
  flex-shrink: 0;
}

.form-checkbox input[type="checkbox"]::before {
  content: "";
  width: 10px;
  height: 10px;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--color-accent);
  transform-origin: center;
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

.form-checkbox input[type="checkbox"]:checked::before {
  transform: scale(1);
}

.form-checkbox input[type="checkbox"]:checked {
  border-color: var(--color-accent);
}

.form-checkbox label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.form-checkbox label a {
  color: var(--color-accent);
  text-decoration: underline;
}

.form-row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.error-message {
  color: var(--color-danger);
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.field-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.35rem;
  display: block;
}

/* Grid helper */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}