:root {
  --cream: #fdf8f3;
  --blush: #f5d6c8;
  --rose: #e8a598;
  --wine: #8b4560;
  --plum: #5c2d45;
  --sage: #c8d8c0;
  --sage-dark: #8aab7e;
  --gold: #d4a853;
  --gold-light: #f0d9a0;
  --dark: #2a1a20;
  --mid: #6b4a57;
  --light-text: #9a7080;
  --border: rgba(139, 69, 96, 0.15);
  --shadow-soft: 0 8px 40px rgba(92, 45, 69, 0.12);
  --shadow-card: 0 4px 24px rgba(92, 45, 69, 0.1);
  --radius: 20px;
  --radius-sm: 12px;
}

/* ========== Reset & Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: 'DM Sans', sans-serif;
  background-color: var(--cream);
  background-image:
    radial-gradient(ellipse at 20% 10%, rgba(245, 214, 200, 0.6) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 90%, rgba(200, 216, 192, 0.5) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 30%, rgba(212, 168, 83, 0.08) 0%, transparent 40%);
  background-attachment: fixed;
  color: var(--dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

/* ========== Toast ========== */
#toast-container {
  position: fixed; top: 24px; right: 24px;
  z-index: 9999; display: flex; flex-direction: column;
  gap: 10px; pointer-events: none;
}
.toast {
  pointer-events: all; background: white; border-radius: 14px;
  padding: 14px 18px; display: flex; align-items: center; gap: 12px;
  box-shadow: 0 8px 32px rgba(92, 45, 69, 0.2);
  border-left: 4px solid var(--rose);
  min-width: 260px; max-width: 340px;
  animation: toastIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  font-size: 14px;
}
.toast.success { border-left-color: var(--sage-dark); }
.toast.warning { border-left-color: var(--gold); }
.toast.error   { border-left-color: #e57373; }
.toast.info    { border-left-color: #81b4ea; }
.toast-icon { font-size: 20px; flex-shrink: 0; }
.toast-content { flex: 1; }
.toast-title { font-weight: 600; color: var(--plum); font-size: 13px; margin-bottom: 2px; }
.toast-message { color: var(--mid); font-size: 12px; line-height: 1.4; }
.toast-close {
  background: none; border: none; cursor: pointer;
  color: var(--light-text); font-size: 16px; padding: 0; margin: 0;
  box-shadow: none; flex-shrink: 0; line-height: 1; transition: color 0.2s;
}
.toast-close:hover { transform: none; box-shadow: none; color: var(--plum); }
.toast.hiding { animation: toastOut 0.3s ease forwards; }
@keyframes toastIn { from { opacity:0; transform: translateX(40px) scale(0.95); } to { opacity:1; transform: translateX(0) scale(1); } }
@keyframes toastOut { from { opacity:1; transform: translateX(0) scale(1); } to { opacity:0; transform: translateX(40px) scale(0.9); } }

/* ========== Navbar ========== */
.navbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(253, 248, 243, 0.75);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border), 0 4px 20px rgba(92, 45, 69, 0.06);
  padding: 10px; margin-bottom: 30px; width: 100%;
}
.nav-container { padding: 10px; margin: auto; display: flex; justify-content: space-between; align-items: center; }
.nav-menu { list-style: none; display: flex; gap: 24px; margin: 0; padding: 0; }
.nav-menu li a {
  text-decoration: none; color: var(--wine); font-weight: 600;
  font-size: 15px; padding: 8px 14px; border-radius: 8px; transition: all 0.3s ease;
}
.nav-menu li a:hover { background-color: var(--wine); color: white; box-shadow: 0 0 12px rgba(139, 69, 96, 0.3); }
.menu-toggle { display: none; font-size: 26px; cursor: pointer; color: var(--wine); }

/* ========== Page Header ========== */
.page-header { text-align: center; margin-bottom: 32px; padding: 0 20px; }
.page-header h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(26px, 5vw, 44px);
  color: var(--plum); letter-spacing: -0.5px; line-height: 1.1; margin-bottom: 8px;
}
.page-header h1 span { color: var(--rose); }
.page-header p { font-size: 14px; color: var(--light-text); font-weight: 300; }

/* ========== Main Layout ========== */
#main-container {
  display: flex; gap: 28px; justify-content: center; align-items: flex-start;
  width: 100%; max-width: 1200px; padding: 0 20px 60px; flex-wrap: wrap;
}

/* ========== Canvas Column ========== */
.canvas-column {
  display: flex; flex-direction: column; align-items: center;
  gap: 18px; flex-shrink: 0;
}
.canvas-wrapper {
  position: relative; background: white;
  border-radius: var(--radius); padding: 12px;
  box-shadow: var(--shadow-soft); border: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}
.canvas-wrapper:hover { box-shadow: 0 16px 60px rgba(92, 45, 69, 0.18); }
#finalCanvas { display: block; width: 260px; height: auto; border-radius: var(--radius-sm); background: #eee; }

/* Loading overlay */
.canvas-loading {
  position: absolute; inset: 12px; border-radius: var(--radius-sm);
  background: rgba(253, 248, 243, 0.92);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 12px; font-size: 13px; color: var(--mid); z-index: 5; transition: opacity 0.4s;
}
.canvas-loading.hidden { opacity: 0; pointer-events: none; }
.spinner {
  width: 36px; height: 36px; border: 3px solid var(--border);
  border-top-color: var(--wine); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.canvas-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

/* ========== Controls Column ========== */
.controls-column { flex: 1; min-width: 280px; max-width: 480px; display: flex; flex-direction: column; gap: 18px; }

/* ========== Section Card ========== */
.section-card {
  background: white; border-radius: var(--radius); padding: 20px 22px;
  box-shadow: var(--shadow-card); border: 1px solid var(--border);
}
.section-title {
  font-size: 11px; font-weight: 600; color: var(--light-text);
  text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 14px;
}

/* ========== Swatches ========== */
.color-swatches { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.swatch {
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer;
  border: 2.5px solid transparent; transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  flex-shrink: 0; box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.swatch:hover { transform: scale(1.2); }
.swatch.active { border-color: var(--wine); transform: scale(1.15); box-shadow: 0 4px 14px rgba(139, 69, 96, 0.35); }

.color-picker-row { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.color-picker-label { font-size: 12px; color: var(--mid); font-weight: 500; }

input[type="color"] {
  width: 44px; height: 36px; border: 2px solid var(--border);
  border-radius: 8px; cursor: pointer; padding: 2px; background: white; transition: border-color 0.2s;
}
input[type="color"]:hover { border-color: var(--rose); }

/* ========== Frame Grid ========== */
.frame-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 10px; }
.frame-btn {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 10px 8px; border-radius: var(--radius-sm);
  border: 2px solid var(--border); background: var(--cream);
  cursor: pointer; transition: all 0.2s ease; box-shadow: none; margin: 0;
  font-size: 11px; color: var(--mid); font-weight: 500; font-family: 'DM Sans', sans-serif;
}
.frame-btn:hover { background: var(--blush); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(92, 45, 69, 0.12); }
.frame-btn.active { border-color: var(--wine); background: white; color: var(--wine); box-shadow: 0 4px 16px rgba(139, 69, 96, 0.2); }
.frame-icon { font-size: 22px; line-height: 1; }

/* ========== Text Controls ========== */
.text-controls { display: flex; flex-direction: column; gap: 10px; }
.input-group { display: flex; flex-direction: column; gap: 5px; }
.input-label { font-size: 11px; font-weight: 600; color: var(--light-text); text-transform: uppercase; letter-spacing: 0.5px; }

input[type="text"] {
  font-family: 'DM Sans', sans-serif; background: var(--cream);
  border: 1.5px solid var(--border); color: var(--plum);
  font-size: 13px; padding: 10px 14px; border-radius: var(--radius-sm);
  width: 100%; transition: border-color 0.2s, box-shadow 0.2s;
}
input[type="text"]:focus { outline: none; border-color: var(--rose); box-shadow: 0 0 0 3px rgba(232, 165, 152, 0.2); }

input[type="range"] { width: 100%; accent-color: var(--wine); cursor: pointer; }

.text-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }

select {
  font-family: 'DM Sans', sans-serif; background: var(--cream);
  border: 1.5px solid var(--border); color: var(--plum);
  font-size: 13px; font-weight: 500; padding: 10px 36px 10px 14px;
  border-radius: 50px; cursor: pointer; appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b4560' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  transition: border-color 0.2s; width: 100%;
}
select:focus { outline: none; border-color: var(--rose); }

/* ========== Stickers ========== */
.sticker-row { display: flex; gap: 8px; flex-wrap: wrap; }
.sticker-btn {
  font-size: 22px; padding: 6px; background: var(--cream);
  border: 1.5px solid var(--border); border-radius: 8px; cursor: pointer;
  transition: all 0.2s; margin: 0; box-shadow: none; line-height: 1;
  width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
}
.sticker-btn:hover { transform: scale(1.2) rotate(-5deg); box-shadow: 0 4px 12px rgba(92, 45, 69, 0.15); background: var(--blush); border-color: var(--rose); }
.sticker-btn.active { border-color: var(--wine); background: white; box-shadow: 0 4px 14px rgba(139, 69, 96, 0.2); }

/* ========== Buttons ========== */
button {
  font-family: 'DM Sans', sans-serif; padding: 11px 22px; border: none;
  border-radius: 50px; font-size: 14px; font-weight: 600; cursor: pointer;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1); letter-spacing: 0.2px; white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--wine), var(--plum)); color: white; box-shadow: 0 4px 16px rgba(139, 69, 96, 0.35); }
.btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 24px rgba(139, 69, 96, 0.4); }
.btn-success { background: linear-gradient(135deg, var(--sage-dark), #6a9b5e); color: white; box-shadow: 0 4px 16px rgba(138, 171, 126, 0.35); }
.btn-success:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 24px rgba(138, 171, 126, 0.4); }
.btn-ghost { background: transparent; color: var(--mid); border: 1.5px solid var(--border); font-size: 13px; padding: 9px 18px; }
.btn-ghost:hover { background: var(--cream); color: var(--wine); transform: translateY(-1px); box-shadow: none; border-color: var(--rose); }
.btn-gold { background: linear-gradient(135deg, var(--gold), #b88630); color: white; box-shadow: 0 4px 16px rgba(212, 168, 83, 0.4); }
.btn-gold:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 24px rgba(212, 168, 83, 0.5); }

/* ========== Tip Banner ========== */
.tip-banner {
  background: linear-gradient(135deg, var(--gold-light), rgba(253,248,243,0.8));
  border: 1px solid var(--gold); border-radius: var(--radius-sm);
  padding: 12px 16px; display: flex; align-items: flex-start; gap: 10px;
  font-size: 12px; color: #6b4e1a; line-height: 1.5;
}
.tip-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .nav-menu {
    position: absolute; top: 70px; right: 20px;
    background: rgba(253, 248, 243, 0.97); border-radius: 16px;
    padding: 12px 20px; box-shadow: 0 8px 30px rgba(92, 45, 69, 0.15);
    flex-direction: column; gap: 10px; display: none; border: 1px solid var(--border);
  }
  .nav-menu.show { display: flex; }
  .menu-toggle { display: block; }
  #main-container { flex-direction: column; align-items: center; padding: 0 16px 60px; }
  .canvas-column, .controls-column { width: 100%; max-width: 480px; }
  #finalCanvas { width: 100%; max-width: 280px; }
  #toast-container { top: auto; bottom: 20px; right: 16px; left: 16px; }
  .toast { max-width: 100%; }
}
@media (max-width: 480px) {
  .frame-grid { grid-template-columns: repeat(3, 1fr); }
  button { font-size: 13px; padding: 10px 16px; }
  .text-row { flex-direction: column; }
  .text-row .input-group { width: 100%; }
}

/* ========== Footer ========== */
.footer {
  width: 100%; padding: 24px 16px; background: white; text-align: center;
  border-top: 1px solid var(--border); margin-top: auto;
  box-shadow: 0 -4px 20px rgba(92, 45, 69, 0.05);
}
.footer-text { margin: 0; font-size: 13px; color: var(--light-text); }
.footer-icons { margin-top: 12px; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.footer-icons img { width: 22px; height: 22px; transition: transform 0.2s ease; filter: invert(30%) sepia(60%) saturate(500%) hue-rotate(290deg) brightness(80%) contrast(100%); }
.footer-icons img:hover { transform: scale(1.2); }
.footer-links { margin-top: 12px; display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--wine); text-decoration: none; font-weight: 500; font-size: 13px; transition: color 0.3s; }
.footer-links a:hover { color: var(--plum); }

/* ========== Custom Frame Lock ========== */
.lock-notice {
  display: none;
  font-size: 12px;
  font-weight: 500;
  color: var(--wine);
  background: var(--blush);
  border: 1px solid var(--rose);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  margin-bottom: 12px;
}
.overlay-lockable.locked .lock-notice { display: block; }
.overlay-lockable.locked .text-controls,
.overlay-lockable.locked .sticker-row,
.overlay-lockable.locked > div:not(.section-title):not(.lock-notice) {
  opacity: 0.28;
  pointer-events: none;
  user-select: none;
  filter: blur(1.5px);
  transition: opacity 0.3s, filter 0.3s;
}