/* Wedding invitation – blue & white palette */
:root {
  --blue-deep: #1e3a5f;
  --blue-mid: #2563eb;
  --blue-soft: #3b82f6;
  --blue-light: #93c5fd;
  --blue-pale: #dbeafe;
  --blue-bg: #eff6ff;
  --white: #ffffff;
  --off-white: #f8fafc;
  --text: #0f172a;
  --text-muted: #475569;
  --font-serif: "Cormorant Garamond", "Georgia", serif;
  --font-sans: "Source Sans 3", "Segoe UI", sans-serif;
  --space: 1.25rem;
  --radius: 8px;
  --shadow: 0 4px 14px rgba(30, 58, 95, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }

a {
  color: var(--blue-mid);
  text-decoration: none;
}

a:hover {
  color: var(--blue-deep);
  text-decoration: underline;
}

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

/* ----- Landing page ----- */
.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-deep);
  color: var(--white);
  text-align: center;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.hero-overlay {
  position: relative;
  z-index: 1;
  padding: var(--space);
  max-width: 32rem;
}

.hero-overlay h1 {
  margin: 0 0 0.5rem;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-overlay .tagline {
  font-size: 1.1rem;
  opacity: 0.95;
  font-family: var(--font-serif);
}

.hero-no-image .hero-overlay {
  padding: 3rem var(--space);
}

.content {
  flex: 1;
  padding: 3rem var(--space) 4rem;
  max-width: 40rem;
  margin: 0 auto;
  width: 100%;
}

.content-section {
  margin-bottom: 2.5rem;
}

.content-section h2 {
  color: var(--blue-deep);
  margin: 0 0 1rem;
}

.content-section p {
  margin: 0 0 0.75rem;
  color: var(--text-muted);
}

.cta-wrap {
  text-align: center;
  margin-top: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  min-height: 44px;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  background: var(--blue-mid);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: background 0.2s, transform 0.15s;
}

.btn:hover {
  background: var(--blue-deep);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:focus {
  outline: 2px solid var(--blue-soft);
  outline-offset: 2px;
}

/* ----- Invite page ----- */
.invite-page {
  min-height: 100vh;
  background: var(--blue-bg);
  padding: 2rem var(--space) 4rem;
}

.invite-card {
  max-width: 28rem;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  border: 1px solid var(--blue-pale);
}

.invite-card h1 {
  color: var(--blue-deep);
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
}

.invite-card .guest-greeting {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.invite-form label {
  display: block;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 0.35rem;
}

.invite-form textarea {
  width: 100%;
  min-height: 120px;
  padding: 0.75rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--blue-pale);
  border-radius: var(--radius);
  background: var(--off-white);
  color: var(--text);
  resize: vertical;
}

.invite-form textarea:focus {
  outline: 2px solid var(--blue-soft);
  outline-offset: 0;
}

.invite-form .btn {
  margin-top: 1rem;
  width: 100%;
  min-height: 44px;
}

.invite-error {
  color: #b91c1c;
  background: #fef2f2;
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.invite-thanks {
  color: var(--blue-deep);
  padding: 1rem 0;
  font-weight: 500;
}

.invite-thanks.hidden {
  display: none;
}

/* ----- Footer ----- */
.site-footer {
  text-align: center;
  padding: 2rem var(--space);
  color: var(--text-muted);
  font-size: 0.9rem;
  background: var(--off-white);
  border-top: 1px solid var(--blue-pale);
}

.site-footer a {
  color: var(--blue-mid);
}

/* ----- Admin ----- */
.admin-page {
  background: var(--blue-bg);
  min-height: 100vh;
  padding: 2rem var(--space);
}

.admin-wrap {
  max-width: 56rem;
  margin: 0 auto;
}

.admin-error {
  background: #fef2f2;
  color: #b91c1c;
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.admin-error code {
  background: rgba(0,0,0,0.06);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

.admin-login {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 20rem;
}

.admin-login h1 {
  color: var(--blue-deep);
  margin: 0 0 1rem;
}

.admin-login label {
  display: block;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 0.35rem;
}

.admin-login input {
  width: 100%;
  min-height: 44px;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--blue-pale);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

.admin-login input:focus {
  outline: 2px solid var(--blue-soft);
  outline-offset: 0;
}

.admin-panel {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--blue-pale);
}

.admin-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--blue-pale);
}

.admin-header h1 {
  color: var(--blue-deep);
  margin: 0;
}

.admin-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-secondary {
  background: var(--off-white);
  color: var(--blue-deep);
  border: 1px solid var(--blue-pale);
}

.btn-secondary:hover {
  background: var(--blue-pale);
  color: var(--blue-deep);
}

.admin-section {
  margin-bottom: 2rem;
}

.admin-section h2 {
  color: var(--blue-deep);
  font-size: 1.25rem;
  margin: 0 0 1rem;
}

.admin-form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.admin-form label {
  display: block;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 0.25rem;
  width: 100%;
}

.admin-form input[type="text"] {
  flex: 1;
  min-width: 12rem;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--blue-pale);
  border-radius: var(--radius);
}

.admin-form input:focus {
  outline: 2px solid var(--blue-soft);
  outline-offset: 0;
}

.admin-hint {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--blue-pale);
}

.admin-table th {
  font-weight: 600;
  color: var(--blue-deep);
  background: var(--off-white);
}

.admin-table td a {
  word-break: break-all;
}

/* ----- Utility ----- */
.hidden {
  display: none !important;
}

/* Responsive: small screens (phone) */
@media (max-width: 640px) {
  .invite-page {
    padding: 1.5rem 1rem 3rem;
  }

  .admin-page {
    padding: 1.5rem 1rem;
  }

  .hero-overlay {
    padding: 1.5rem 1rem;
  }

  .content {
    padding: 2rem 1rem 3rem;
  }

  .invite-card {
    padding: 1.5rem;
  }

  .site-footer {
    padding: 1.5rem 1rem;
  }

  .admin-header {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-actions {
    flex-wrap: wrap;
  }

  .admin-form {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-form input[type="text"] {
    min-width: 0;
    width: 100%;
  }

  .admin-panel {
    padding: 1.5rem;
  }

  .admin-table {
    font-size: 0.875rem;
  }

  .admin-table th,
  .admin-table td {
    padding: 0.5rem 0.5rem 0.5rem 0.25rem;
  }
}

/* Responsive: desktop */
@media (min-width: 640px) {
  .hero {
    min-height: 70vh;
  }

  .content {
    padding: 4rem 2rem 5rem;
  }

  .invite-card {
    padding: 2.5rem;
  }
}