/* ========================================
   BASE — Reset & Global Styles
   ======================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-neutral-800);
  background-color: var(--color-white);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: var(--leading-tight);
  color: var(--color-neutral-900);
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

ul {
  list-style: none;
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* --- Section --- */
.section {
  padding: var(--space-24) 0;
}

.section__header {
  text-align: center;
  max-width: var(--max-width-narrow);
  margin: 0 auto var(--space-16);
}

.section__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-primary-600);
  background: var(--color-primary-50);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.section__title {
  font-size: var(--text-4xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-tight);
}

.section__description {
  font-size: var(--text-lg);
  color: var(--color-neutral-500);
  line-height: var(--leading-relaxed);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.btn:hover::before {
  opacity: 1;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary-700), var(--color-primary-500));
  color: var(--color-white);
  box-shadow: var(--shadow-md), 0 0 0 0 rgba(29, 158, 117, 0);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(29, 158, 117, 0.2);
}

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

.btn--outline {
  background: transparent;
  color: var(--color-primary-700);
  border: 1.5px solid var(--color-primary-200);
}

.btn--outline:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-400);
  transform: translateY(-2px);
}

.btn--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--small {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}

.btn--full {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-base);
}

.btn__icon {
  font-size: var(--text-xs);
}

/* --- Badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.badge--soon {
  background: var(--color-gold-100);
  color: var(--color-gold-700);
  margin-left: var(--space-2);
}

.badge--large {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-5);
}

/* --- Selection --- */
::selection {
  background: var(--color-primary-200);
  color: var(--color-primary-900);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-neutral-50);
}

::-webkit-scrollbar-thumb {
  background: var(--color-neutral-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-neutral-400);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .section {
    padding: var(--space-16) 0;
  }

  .section__title {
    font-size: var(--text-3xl);
  }

  .section__description {
    font-size: var(--text-base);
  }

  .container {
    padding: 0 var(--space-4);
  }
}