/* ==========================================================================
   Mounstory — base.css
   Shared reset, design tokens, typography and small utilities used by
   every page (portfolio landing page + every couple's invitation page).
   ========================================================================== */

:root {
  /* Palette — soft / pastel, overridable per couple via a page-level
     <style> block or a small per-folder stylesheet loaded after this one. */
  --color-bg: #fbf7f2;
  --color-surface: #ffffff;
  --color-primary: #c9a66b;      /* muted gold accent */
  --color-primary-dark: #a9865065;
  --color-secondary: #e8c9c9;    /* blush pink */
  --color-accent: #93a591;       /* soft sage */
  --color-text: #4a4238;
  --color-text-light: #8a7f72;
  --color-border: #ece2d6;
  --color-success: #7a9c7e;
  --color-danger: #c98787;

  --font-serif: "Playfair Display", "Georgia", serif;
  --font-sans: "Poppins", "Segoe UI", sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --shadow-card: 0 10px 40px rgba(74, 66, 56, 0.08);
  --shadow-soft: 0 4px 16px rgba(74, 66, 56, 0.06);

  --transition-fast: 250ms ease-in-out;
  --transition-base: 400ms ease-in-out;
  --transition-slow: 600ms ease-in-out;

  --card-max-width: 600px;
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: clamp(0.95rem, 0.9rem + 0.3vw, 1.05rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  margin: 0 0 0.5em;
  color: var(--color-text);
}

p {
  margin: 0 0 1em;
}

a {
  color: inherit;
}

button {
  font-family: inherit;
}

ul, ol {
  padding-left: 1.2em;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 0.85em 1.9em;
  font-size: clamp(0.85rem, 0.8rem + 0.2vw, 0.95rem);
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    opacity var(--transition-fast), background-color var(--transition-fast);
  will-change: transform;
}

.btn:active {
  transform: scale(0.96);
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  box-shadow: 0 8px 22px rgba(201, 166, 107, 0.35);
}

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

.btn-outline:hover {
  background: rgba(201, 166, 107, 0.08);
}

.btn-block {
  width: 100%;
}

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

/* Scroll reveal ------------------------------------------------------------
   Elements start hidden + offset, JS toggles .is-visible via
   IntersectionObserver when they enter the viewport. */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }
.reveal-delay-4 { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal,
  .btn,
  * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}

/* Small helpers ------------------------------------------------------------ */

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.eyebrow {
  font-size: clamp(0.7rem, 0.65rem + 0.2vw, 0.8rem);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 600;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translate(-50%, 20px);
  background: var(--color-text);
  color: #fff;
  padding: 0.7em 1.3em;
  border-radius: 999px;
  font-size: 0.85rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base);
  z-index: 999;
  box-shadow: var(--shadow-card);
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}