:root, [data-theme="light"] {
      --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
      --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
      --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
      --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.4rem);
      --text-xl: clamp(1.6rem, 1.2rem + 1.25vw, 2.4rem);
      --text-2xl: clamp(2.4rem, 1.5rem + 2.8vw, 4.2rem);
      --space-1: 0.25rem;
      --space-2: 0.5rem;
      --space-3: 0.75rem;
      --space-4: 1rem;
      --space-5: 1.25rem;
      --space-6: 1.5rem;
      --space-8: 2rem;
      --space-10: 2.5rem;
      --space-12: 3rem;
      --space-16: 4rem;
      --space-20: 5rem;
      --radius-sm: 0.375rem;
      --radius-md: 0.75rem;
      --radius-lg: 1.25rem;
      --radius-xl: 2rem;
      --radius-full: 9999px;
      --font-display: 'Patrick Hand', cursive;
      --font-script: 'Cormorant Garamond', serif;
      --font-body: 'Work Sans', Arial, sans-serif;
      --color-bg: #efefed;
      --color-surface: #fbfaf6;
      --color-surface-2: #f5f1ea;
      --color-surface-offset: #ebe5d7;
      --color-border: #d8cfbf;
      --color-text: #7f9ca0;
      --color-text-muted: #8fa6a8;
      --color-text-faint: #b1bebd;
      --color-heading: #a58a6b;
      --color-primary: #b9c59d;
      --color-primary-hover: #a8b68a;
      --color-primary-active: #8e9c73;
      --color-accent: #e8c08b;
      --color-leaf: #bcc8a8;
      --color-leaf-deep: #97ab7f;
      --color-animal: #caa37c;
      --color-stripe: #8c7058;
      --color-text-inverse: #fffdf9;
      --shadow-sm: 0 2px 10px rgba(140, 112, 88, 0.08);
      --shadow-md: 0 16px 40px rgba(140, 112, 88, 0.12);
      --content-default: 1120px;
      --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
    }

    [data-theme="dark"] {
      --color-bg: #1f211e;
      --color-surface: #2a2d29;
      --color-surface-2: #333730;
      --color-surface-offset: #40453c;
      --color-border: #5c6259;
      --color-text: #c7d7d6;
      --color-text-muted: #b7c7c5;
      --color-text-faint: #93a39f;
      --color-heading: #d5bea2;
      --color-primary: #a4b48b;
      --color-primary-hover: #b4c49b;
      --color-primary-active: #cedbb8;
      --color-accent: #d9b07c;
      --color-leaf: #9daf8a;
      --color-leaf-deep: #cad8bc;
      --color-animal: #ddb58d;
      --color-stripe: #e7d8c7;
      --color-text-inverse: #1d1f1c;
      --shadow-sm: 0 2px 10px rgba(0,0,0,0.25);
      --shadow-md: 0 16px 40px rgba(0,0,0,0.35);
    }

    @media (prefers-color-scheme: light) {
      :root:not([data-theme]) {
        --color-bg: #1f211e;
        --color-surface: #2a2d29;
        --color-surface-2: #333730;
        --color-surface-offset: #40453c;
        --color-border: #5c6259;
        --color-text: #c7d7d6;
        --color-text-muted: #b7c7c5;
        --color-text-faint: #93a39f;
        --color-heading: #d5bea2;
        --color-primary: #a4b48b;
        --color-primary-hover: #b4c49b;
        --color-primary-active: #cedbb8;
        --color-accent: #d9b07c;
        --color-leaf: #9daf8a;
        --color-leaf-deep: #cad8bc;
        --color-animal: #ddb58d;
        --color-stripe: #e7d8c7;
        --color-text-inverse: #1d1f1c;
      }
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      min-height: 100vh;
      font-family: var(--font-body);
      font-size: var(--text-base);
      line-height: 1.65;
      color: var(--color-text);
      background: var(--color-bg);
    }

    img, svg { display: block; max-width: 100%; height: auto; }
    a { color: inherit; }
    button, input, textarea, select { font: inherit; color: inherit; }
    button { cursor: pointer; }
    :focus-visible {
      outline: 3px solid var(--color-accent);
      outline-offset: 3px;
      border-radius: var(--radius-sm);
    }

    .skip-link {
      position: absolute;
      left: 1rem;
      top: -3rem;
      background: var(--color-heading);
      color: var(--color-text-inverse);
      padding: 0.75rem 1rem;
      border-radius: var(--radius-full);
      text-decoration: none;
      z-index: 20;
    }
    .skip-link:focus { top: 1rem; }

    .container {
      width: min(calc(100% - 2rem), var(--content-default));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 10;
      background: color-mix(in srgb, var(--color-bg) 88%, transparent);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid color-mix(in srgb, var(--color-heading) 14%, transparent);
    }

    .nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: var(--space-4);
      padding: var(--space-4) 0;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: var(--space-3);
      text-decoration: none;
      color: var(--color-heading);
      font-family: var(--font-display);
      font-size: var(--text-lg);
    }

    .brand-mark {
      width: 2.8rem;
      height: 2.8rem;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--color-surface);
      border: 1px solid color-mix(in srgb, var(--color-heading) 18%, transparent);
      box-shadow: var(--shadow-sm);
    }

    .nav-links {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: var(--space-3);
    }

    .nav-links a,
    .theme-toggle {
      min-height: 44px;
      padding: 0.65rem 1rem;
      border-radius: var(--radius-full);
      text-decoration: none;
      color: var(--color-text);
      border: 1px solid transparent;
      background: transparent;
      transition: all var(--transition);
    }

    .nav-links a:hover,
    .theme-toggle:hover {
      background: var(--color-surface);
      border-color: color-mix(in srgb, var(--color-heading) 16%, transparent);
    }

    .hero {
      padding: clamp(3.5rem, 7vw, 6rem) 0 var(--space-16);
    }

    .hero-layout {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: var(--space-8);
      align-items: center;
    }

    .intro-copy {
      padding-inline: var(--space-4);
    }

    .eyebrow {
      color: var(--color-heading);
      text-transform: uppercase;
      letter-spacing: 0.15em;
      font-size: var(--text-xs);
      font-weight: 700;
    }

    h1, h2, h3 {
      margin: 0;
      color: var(--color-heading);
    }

    h1 {
      font-family: var(--font-display);
      font-size: var(--text-2xl);
      line-height: 1;
      color: var(--color-text);
      max-width: 10ch;
      margin-top: var(--space-3);
    }

    h2 {
      font-family: var(--font-script);
      font-size: var(--text-xl);
      font-weight: 500;
      margin-bottom: var(--space-3);
    }

    h3 {
      font-family: var(--font-script);
      font-size: var(--text-lg);
      font-weight: 600;
      margin-bottom: var(--space-2);
    }

    .intro-copy p,
    .section-intro,
    .card p,
    .small-note {
      color: var(--color-text);
      max-width: 60ch;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: var(--space-3);
      margin-top: var(--space-6);
    }

    .btn {
      min-height: 48px;
      padding: 0.9rem 1.35rem;
      border-radius: var(--radius-full);
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      font-weight: 600;
      border: 1px solid color-mix(in srgb, var(--color-heading) 15%, transparent);
      transition: transform var(--transition), background var(--transition), border-color var(--transition);
    }

    .btn:hover { transform: translateY(-1px); }

    .btn-primary {
      background: var(--color-primary);
      color: #5d6b53;
    }

    .btn-primary:hover { background: var(--color-primary-hover); }

    .btn-secondary {
      background: var(--color-surface);
      color: var(--color-heading);
    }

    .invitation-card {
      position: relative;
      min-height: 760px;
      border: 1px solid color-mix(in srgb, var(--color-heading) 12%, transparent);
      border-radius: 48% 48% 42% 42% / 16% 16% 12% 12%;
      box-shadow: var(--shadow-md);
      padding: clamp(2rem, 4vw, 3rem);
      overflow: hidden;
      z-index: 1;
    }

    .invitation-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url(images/bg.png); 
      background-position: center; 
      background-repeat: no-repeat; 
      background-size: cover;
      filter: blur(2px);
      transform: scale(1.05);
      z-index: -1;
    }

    .invitation-inner {
      position: relative;
      min-height: 100%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      gap: var(--space-3);
      padding: var(--space-8) var(--space-6);
      z-index: 2;
    }

    .main-title {
      font-family: var(--font-display);
      font-size: clamp(2.3rem, 4vw, 4rem);
      line-height: 1.06;
      color: var(--color-text);
      max-width: 10ch;
    }

    .sub-title {
      font-family: var(--font-display);
      font-size: clamp(1.15rem, 2vw, 1.5rem);
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--color-text-muted);
    }

    .names {
      font-family: var(--font-script);
      font-size: clamp(2.5rem, 5vw, 4rem);
      color: var(--color-text);
      line-height: 1;
      margin-top: var(--space-1);
    }

    .detail-lines {
      font-family: var(--font-display);
      color: var(--color-text);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      font-size: clamp(0.9rem, 1.3vw, 1.05rem);
      line-height: 1.7;
    }

    .invitation-note {
      max-width: 28ch;
      color: var(--color-text);
      margin-top: var(--space-2);
    }

    .hero-line {
      width: 180px;
      height: 2px;
      background: color-mix(in srgb, var(--color-heading) 55%, transparent);
      border-radius: var(--radius-full);
      margin: var(--space-1) auto;
    }

    .watercolor {
      position: absolute;
      opacity: 0.95;
      filter: saturate(0.92);
    }

    .watercolor svg {
      width: 100%;
      height: auto;
    }

    .leaf-top-left { top: 1.2rem; left: 1.2rem; width: 145px; }
    .sun-top { top: 1rem; left: 50%; transform: translateX(-50%); width: 64px; }
    .elephant-top-right { top: 1.2rem; right: 1.5rem; width: 148px; }
    .tree-left { top: 10rem; left: 1rem; width: 110px; }
    .giraffe-left { top: 16rem; left: 1.2rem; width: 138px; }
    .leaf-right-top { top: 11rem; right: 1rem; width: 100px; }
    .blue-leaf-right { top: 16rem; right: 1rem; width: 74px; }
    .tiger-right { top: 24rem; right: 1.4rem; width: 132px; }
    .leaf-bottom-left { bottom: 1rem; left: 1.4rem; width: 118px; }
    .zebra-bottom { bottom: 0.8rem; left: 50%; transform: translateX(-50%); width: 132px; }
    .tree-bottom-right { bottom: 1rem; right: 1.4rem; width: 118px; }

    .section {
      padding: clamp(var(--space-10), 7vw, var(--space-20)) 0;
    }

    .section-shell {
      background: color-mix(in srgb, var(--color-surface) 90%, transparent);
      border: 1px solid color-mix(in srgb, var(--color-heading) 12%, transparent);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-sm);
      padding: clamp(var(--space-6), 4vw, var(--space-10));
    }

    .info-grid,
    .split-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: var(--space-6);
      margin-top: var(--space-6);
    }

    .details-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: var(--space-4);
      width: 100%;
      margin-top: var(--space-4);
    }

    .card {
      background: var(--color-surface);
      border: 1px solid color-mix(in srgb, var(--color-heading) 12%, transparent);
      border-radius: var(--radius-lg);
      padding: var(--space-6);
      box-shadow: var(--shadow-sm);
    }

	.card-no-border {
      background: var(--color-surface);
      padding: var(--space-6);
    }

    .label {
      color: var(--color-text-muted);
      text-transform: uppercase;
      letter-spacing: 0.12em;
      font-size: var(--text-xs);
      font-weight: 700;
      margin-bottom: var(--space-2);
    }

    .value {
      font-family: var(--font-display);
      color: var(--color-text);
      font-size: var(--text-base);
    }

    .rsvp-form {
      display: grid;
      gap: var(--space-4);
    }

    .field {
      display: grid;
      gap: var(--space-2);
    }

    label {
      font-weight: 600;
      color: var(--color-heading);
    }

    input, select, textarea {
      width: 100%;
      min-height: 48px;
      border-radius: var(--radius-md);
      border: 1px solid color-mix(in srgb, var(--color-heading) 16%, transparent);
      background: var(--color-surface-2);
      padding: 0.9rem 1rem;
    }

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

    .steps {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: var(--space-3);
    }

    .steps li {
      display: flex;
      gap: var(--space-3);
      align-items: flex-start;
    }

    .step-number {
      width: 2rem;
      height: 2rem;
      border-radius: 50%;
      display: grid;
      place-items: center;
      flex-shrink: 0;
      background: color-mix(in srgb, var(--color-primary) 45%, white);
      color: var(--color-heading);
      font-weight: 700;
      font-size: var(--text-sm);
    }

    .success-message {
      display: none;
      margin-top: var(--space-4);
      padding: 1rem 1.1rem;
      border-radius: var(--radius-md);
      background: color-mix(in srgb, var(--color-primary) 30%, white);
      color: var(--color-heading);
      font-weight: 600;
    }

    .success-message.show { display: block; }

    .footer {
      padding: var(--space-8) 0 var(--space-12);
      color: var(--color-text-muted);
      text-align: center;
    }

    @media (max-width: 980px) {
      .hero-layout,
      .info-grid,
      .split-grid,
      .details-grid {
        grid-template-columns: 1fr;
      }

      .nav {
        flex-direction: column;
        align-items: flex-start;
      }

      .invitation-card {
        min-height: 840px;
      }

      .intro-copy {
        padding-inline: 0;
      }
    }

    @media (max-width: 640px) {
      .invitation-card {
        min-height: 760px;
        border-radius: 36% 36% 28% 28% / 9% 9% 8% 8%;
        padding: 1.25rem;
      }

      .invitation-inner {
        padding: 6.2rem 1rem 8.5rem;
      }

      .leaf-top-left { width: 106px; }
      .elephant-top-right { width: 112px; }
      .giraffe-left { width: 110px; top: 17rem; }
      .tiger-right { width: 110px; top: 27rem; }
      .zebra-bottom { width: 110px; }
      .tree-bottom-right { width: 92px; }
      .tree-left { width: 92px; }
      .leaf-right-top { width: 82px; }
      .blue-leaf-right { width: 60px; }
      .leaf-bottom-left { width: 92px; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }