Update static/style.css

static/style.css

@@ -1,36 +1,52 @@
 /* ── Reset & Base ────────────────────────────────────────── */
-*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+*,
+*::before,
+*::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
 
 :root {
-  --bg: #f5f4f0;
-  --surface: #ffffff;
-  --surface2: #f9f8f5;
-  --border: rgba(0,0,0,0.10);
-  --border-strong: rgba(0,0,0,0.18);
-  --text-primary: #1a1a1a;
-  --text-secondary: #6b6b68;
-  --text-muted: #9b9b98;
-  --accent: #5048c8;
-  --accent-light: #eeedfe;
-  --accent-text: #3c3489;
+  --bg: linear-gradient(135deg, #f6f4ff 0%, #f4f6fb 40%, #f8f5ef 100%);
+  --surface: rgba(255, 255, 255, 0.92);
+  --surface-strong: #ffffff;
+  --surface2: #f8f8fc;
+  --border: rgba(91, 82, 196, 0.10);
+  --border-strong: rgba(91, 82, 196, 0.22);
+  --text-primary: #17171c;
+  --text-secondary: #666779;
+  --text-muted: #9698a8;
+  --accent: #5b52c4;
+  --accent-2: #7c73ea;
+  --accent-light: #efedff;
+  --accent-soft: rgba(91, 82, 196, 0.12);
+  --accent-text: #3f3796;
   --danger: #e24b4a;
-  --danger-light: #fcebeb;
+  --danger-light: #fef0f0;
   --danger-text: #a32d2d;
-  --success: #1d9e75;
-  --success-light: #e1f5ee;
-  --success-text: #085041;
-  --amber: #ba7517;
-  --amber-light: #faeeda;
-  --amber-text: #633806;
-  --radius-sm: 6px;
-  --radius-md: 8px;
-  --radius-lg: 14px;
-  --radius-xl: 20px;
-  --shadow: 0 2px 12px rgba(0,0,0,0.08), 0 0 0 0.5px rgba(0,0,0,0.08);
+  --success: #1ea672;
+  --success-light: #e5f8f0;
+  --success-text: #0b6c4f;
+  --amber: #c8841e;
+  --amber-light: #fff3de;
+  --amber-text: #714200;
+  --radius-sm: 8px;
+  --radius-md: 12px;
+  --radius-lg: 18px;
+  --radius-xl: 26px;
+  --shadow-sm: 0 6px 18px rgba(31, 35, 70, 0.06);
+  --shadow: 0 14px 40px rgba(31, 35, 70, 0.08);
+  --shadow-lg: 0 24px 70px rgba(31, 35, 70, 0.14);
+  --max-width: 760px;
+}
+
+html {
+  scroll-behavior: smooth;
 }
 
 body {
-  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
+  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
   background: var(--bg);
   color: var(--text-primary);
   min-height: 100vh;
@@ -39,96 +55,177 @@ body {
   align-items: center;
   padding: 2rem 1rem 4rem;
   line-height: 1.6;
+  position: relative;
+  overflow-x: hidden;
+}
+
+body::before,
+body::after {
+  content: "";
+  position: fixed;
+  inset: auto;
+  width: 280px;
+  height: 280px;
+  border-radius: 50%;
+  filter: blur(80px);
+  pointer-events: none;
+  z-index: -1;
+}
+
+body::before {
+  top: -60px;
+  left: -80px;
+  background: rgba(124, 115, 234, 0.18);
+}
+
+body::after {
+  right: -80px;
+  bottom: -80px;
+  background: rgba(91, 82, 196, 0.14);
 }
 
 /* ── Header ─────────────────────────────────────────────── */
 header {
   text-align: center;
-  margin-bottom: 2.5rem;
+  margin-bottom: 2rem;
+  max-width: 720px;
+}
+
+#three-header {
+  margin-bottom: 0.4rem !important;
+  filter: drop-shadow(0 14px 28px rgba(91, 82, 196, 0.18));
 }
 
 .logo-wrap {
   display: inline-flex;
   align-items: center;
   justify-content: center;
-  width: 60px; height: 60px;
-  background: var(--accent-light);
+  width: 62px;
+  height: 62px;
+  background: linear-gradient(135deg, #f2f0ff 0%, #ebe8ff 100%);
   border-radius: var(--radius-lg);
-  border: 0.5px solid rgba(83,74,183,0.2);
+  border: 1px solid rgba(91, 82, 196, 0.15);
   margin-bottom: 1rem;
+  box-shadow: var(--shadow-sm);
 }
 
-.logo-wrap svg { width: 30px; height: 30px; }
+.logo-wrap svg {
+  width: 30px;
+  height: 30px;
+}
 
 header h1 {
-  font-size: 26px;
-  font-weight: 600;
+  font-size: clamp(2rem, 4vw, 2.6rem);
+  font-weight: 800;
   color: var(--text-primary);
-  letter-spacing: -0.3px;
+  letter-spacing: -0.04em;
+  line-height: 1.1;
 }
 
 header p {
-  font-size: 15px;
+  font-size: 1rem;
   color: var(--text-secondary);
-  margin-top: 4px;
+  margin-top: 0.7rem;
+  max-width: 620px;
+  margin-left: auto;
+  margin-right: auto;
 }
 
 /* ── Main card ───────────────────────────────────────────── */
 main {
   width: 100%;
-  max-width: 720px;
+  max-width: var(--max-width);
 }
 
 .card {
   background: var(--surface);
+  backdrop-filter: blur(16px);
+  -webkit-backdrop-filter: blur(16px);
   border-radius: var(--radius-xl);
-  border: 0.5px solid var(--border);
-  box-shadow: var(--shadow);
+  border: 1px solid var(--border);
+  box-shadow: var(--shadow-lg);
   padding: 2rem;
+  position: relative;
+  overflow: hidden;
+}
+
+.card::before {
+  content: "";
+  position: absolute;
+  inset: 0 0 auto 0;
+  height: 1px;
+  background: linear-gradient(90deg, transparent, rgba(124, 115, 234, 0.35), transparent);
 }
 
 /* ── Drop zone ───────────────────────────────────────────── */
 #drop-zone {
-  border: 1.5px dashed var(--border-strong);
-  border-radius: var(--radius-lg);
-  padding: 3rem 2rem;
+  border: 2px dashed rgba(91, 82, 196, 0.24);
+  border-radius: calc(var(--radius-lg) + 2px);
+  padding: 3.2rem 2rem;
   text-align: center;
   cursor: pointer;
-  transition: border-color 0.15s, background 0.15s;
-  background: var(--surface2);
+  transition: 0.25s ease;
+  background:
+    radial-gradient(circle at top, rgba(124, 115, 234, 0.08), transparent 45%),
+    var(--surface2);
   position: relative;
+  overflow: hidden;
+}
+
+#drop-zone::before {
+  content: "";
+  position: absolute;
+  inset: 0;
+  background: linear-gradient(135deg, rgba(124, 115, 234, 0.04), rgba(255, 255, 255, 0));
+  pointer-events: none;
 }
 
-#drop-zone:hover, #drop-zone.drag-over {
+#drop-zone:hover,
+#drop-zone.drag-over {
   border-color: var(--accent);
-  background: var(--accent-light);
+  background:
+    radial-gradient(circle at top, rgba(124, 115, 234, 0.14), transparent 45%),
+    #f4f2ff;
+  transform: translateY(-2px);
+  box-shadow: 0 12px 32px rgba(91, 82, 196, 0.10);
 }
 
 #drop-zone input[type="file"] {
-  position: absolute; inset: 0;
-  opacity: 0; cursor: pointer; width: 100%; height: 100%;
+  position: absolute;
+  inset: 0;
+  opacity: 0;
+  cursor: pointer;
+  width: 100%;
+  height: 100%;
 }
 
 .drop-icon {
-  width: 48px; height: 48px;
+  width: 56px;
+  height: 56px;
   margin: 0 auto 1rem;
-  background: var(--accent-light);
-  border-radius: var(--radius-md);
-  display: flex; align-items: center; justify-content: center;
-  border: 0.5px solid rgba(83,74,183,0.2);
+  background: linear-gradient(135deg, #f0efff 0%, #e6e3ff 100%);
+  border-radius: 16px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid rgba(91, 82, 196, 0.16);
+  box-shadow: 0 10px 24px rgba(91, 82, 196, 0.10);
 }
 
-.drop-icon svg { width: 24px; height: 24px; }
+.drop-icon svg {
+  width: 26px;
+  height: 26px;
+}
 
 #drop-zone h2 {
-  font-size: 16px;
-  font-weight: 500;
+  font-size: 1.05rem;
+  font-weight: 700;
   color: var(--text-primary);
-  margin-bottom: 4px;
+  margin-bottom: 0.35rem;
 }
 
 #drop-zone p {
-  font-size: 13px;
+  font-size: 0.92rem;
   color: var(--text-muted);
 }
 
@@ -140,11 +237,12 @@ main {
   background: var(--amber-light);
   color: var(--amber-text);
   font-size: 12px;
-  font-weight: 500;
-  padding: 4px 10px;
-  border-radius: 99px;
-  margin-top: 0.75rem;
-  border: 0.5px solid rgba(186,117,23,0.2);
+  font-weight: 700;
+  padding: 6px 12px;
+  border-radius: 999px;
+  margin-top: 0.95rem;
+  border: 1px solid rgba(200, 132, 30, 0.18);
+  box-shadow: 0 6px 16px rgba(200, 132, 30, 0.08);
 }
 
 /* ── Counter bar ─────────────────────────────────────────── */
@@ -152,142 +250,219 @@ main {
   display: none;
   align-items: center;
   justify-content: space-between;
+  gap: 12px;
   margin-top: 1.25rem;
-  padding: 0.6rem 0.9rem;
-  background: var(--surface2);
+  padding: 0.8rem 1rem;
+  background: rgba(248, 248, 252, 0.92);
   border-radius: var(--radius-md);
-  border: 0.5px solid var(--border);
+  border: 1px solid rgba(91, 82, 196, 0.10);
   font-size: 13px;
   color: var(--text-secondary);
+  box-shadow: var(--shadow-sm);
 }
 
-#counter-bar.visible { display: flex; }
+#counter-bar.visible {
+  display: flex;
+}
 
 #counter-bar .count-num {
-  font-weight: 600;
+  font-weight: 700;
   color: var(--text-primary);
 }
 
 .count-dot {
-  width: 6px; height: 6px;
+  width: 8px;
+  height: 8px;
   border-radius: 50%;
   background: var(--success);
   display: inline-block;
-  margin-right: 4px;
+  margin-right: 6px;
+  box-shadow: 0 0 0 4px rgba(30, 166, 114, 0.12);
 }
 
-.count-dot.warn { background: var(--amber); }
-.count-dot.danger { background: var(--danger); }
+.count-dot.warn {
+  background: var(--amber);
+  box-shadow: 0 0 0 4px rgba(200, 132, 30, 0.12);
+}
+
+.count-dot.danger {
+  background: var(--danger);
+  box-shadow: 0 0 0 4px rgba(226, 75, 74, 0.12);
+}
 
 /* ── Image preview grid ──────────────────────────────────── */
 #preview-grid {
   display: grid;
-  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
-  gap: 10px;
-  margin-top: 1.25rem;
+  grid-template-columns: repeat(auto-fill, minmax(115px, 1fr));
+  gap: 14px;
+  margin-top: 1.35rem;
 }
 
 .preview-item {
   position: relative;
   aspect-ratio: 1;
-  border-radius: var(--radius-md);
+  border-radius: 18px;
   overflow: hidden;
-  border: 0.5px solid var(--border);
-  background: var(--surface2);
+  border: 1px solid rgba(91, 82, 196, 0.10);
+  background: linear-gradient(180deg, #fbfbff 0%, #f4f4fa 100%);
+  box-shadow: 0 12px 28px rgba(31, 35, 70, 0.08);
+  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
+}
+
+.preview-item:hover {
+  transform: translateY(-4px);
+  box-shadow: 0 18px 36px rgba(31, 35, 70, 0.12);
+  border-color: rgba(91, 82, 196, 0.22);
 }
 
 .preview-item img {
-  width: 100%; height: 100%;
+  width: 100%;
+  height: 100%;
   object-fit: cover;
   display: block;
 }
 
+.preview-item::after {
+  content: "";
+  position: absolute;
+  inset: auto 0 0 0;
+  height: 40%;
+  background: linear-gradient(to top, rgba(0, 0, 0, 0.18), transparent);
+  pointer-events: none;
+}
+
 .preview-item .remove-btn {
   position: absolute;
-  top: 5px; right: 5px;
-  width: 22px; height: 22px;
+  top: 8px;
+  right: 8px;
+  width: 28px;
+  height: 28px;
   border-radius: 50%;
-  background: rgba(0,0,0,0.55);
-  border: none;
+  background: rgba(19, 19, 25, 0.72);
+  backdrop-filter: blur(8px);
+  border: 1px solid rgba(255, 255, 255, 0.14);
   cursor: pointer;
-  display: flex; align-items: center; justify-content: center;
+  display: flex;
+  align-items: center;
+  justify-content: center;
   opacity: 0;
-  transition: opacity 0.15s;
+  transition: 0.18s ease;
+  z-index: 2;
 }
 
-.preview-item:hover .remove-btn { opacity: 1; }
+.preview-item:hover .remove-btn {
+  opacity: 1;
+}
+
+.preview-item .remove-btn:hover {
+  background: rgba(226, 75, 74, 0.92);
+  transform: scale(1.05);
+}
 
 .preview-item .remove-btn svg {
-  width: 12px; height: 12px;
+  width: 12px;
+  height: 12px;
   stroke: #fff;
 }
 
 .preview-item .order-badge {
   position: absolute;
-  bottom: 5px; left: 5px;
-  background: rgba(0,0,0,0.5);
+  bottom: 8px;
+  left: 8px;
+  background: rgba(19, 19, 25, 0.66);
+  backdrop-filter: blur(8px);
   color: #fff;
   font-size: 11px;
-  padding: 1px 5px;
-  border-radius: 4px;
+  font-weight: 700;
+  padding: 3px 8px;
+  border-radius: 999px;
+  z-index: 2;
 }
 
 /* ── Actions ─────────────────────────────────────────────── */
 .actions {
   display: flex;
-  gap: 10px;
-  margin-top: 1.5rem;
+  gap: 12px;
+  margin-top: 1.6rem;
 }
 
 button {
   font-family: inherit;
   cursor: pointer;
-  border-radius: var(--radius-md);
+  border-radius: 14px;
   font-size: 14px;
-  font-weight: 500;
-  padding: 10px 18px;
-  transition: opacity 0.15s, transform 0.1s;
-  border: 0.5px solid var(--border-strong);
+  font-weight: 700;
+  padding: 12px 18px;
+  transition: 0.18s ease;
+  border: 1px solid var(--border-strong);
+  outline: none;
 }
 
-button:active { transform: scale(0.98); }
+button:focus-visible,
+#drop-zone:focus-within {
+  box-shadow: 0 0 0 4px rgba(91, 82, 196, 0.14);
+}
+
+button:active {
+  transform: scale(0.98);
+}
 
 .btn-primary {
-  background: var(--accent);
+  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
   color: #fff;
   border-color: transparent;
   flex: 1;
-  display: flex; align-items: center; justify-content: center; gap: 8px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 8px;
+  box-shadow: 0 14px 26px rgba(91, 82, 196, 0.22);
 }
 
-.btn-primary:hover { opacity: 0.88; }
-.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
+.btn-primary:hover {
+  transform: translateY(-1px);
+  box-shadow: 0 18px 34px rgba(91, 82, 196, 0.28);
+}
+
+.btn-primary:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+  transform: none;
+  box-shadow: none;
+}
 
 .btn-ghost {
-  background: transparent;
+  background: rgba(255, 255, 255, 0.75);
   color: var(--text-secondary);
+  border-color: rgba(91, 82, 196, 0.12);
+  backdrop-filter: blur(8px);
 }
 
 .btn-ghost:hover {
-  background: var(--surface2);
+  background: #fff;
   color: var(--text-primary);
+  border-color: rgba(91, 82, 196, 0.20);
 }
 
 /* ── Toast ───────────────────────────────────────────────── */
 #toast {
   position: fixed;
-  bottom: 2rem; left: 50%;
-  transform: translateX(-50%) translateY(12px);
-  background: var(--text-primary);
+  bottom: 1.6rem;
+  left: 50%;
+  transform: translateX(-50%) translateY(16px);
+  background: rgba(23, 23, 28, 0.92);
+  backdrop-filter: blur(14px);
   color: #fff;
   font-size: 13px;
-  padding: 10px 18px;
-  border-radius: 99px;
+  font-weight: 600;
+  padding: 12px 18px;
+  border-radius: 999px;
   opacity: 0;
   pointer-events: none;
-  transition: opacity 0.2s, transform 0.2s;
+  transition: opacity 0.25s ease, transform 0.25s ease;
   white-space: nowrap;
   z-index: 200;
+  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.18);
 }
 
 #toast.show {
@@ -298,60 +473,84 @@ button:active { transform: scale(0.98); }
 /* ── Overlay + Premium dialog ────────────────────────────── */
 #overlay {
   display: none;
-  position: fixed; inset: 0;
-  background: rgba(0,0,0,0.45);
+  position: fixed;
+  inset: 0;
+  background: rgba(10, 11, 20, 0.52);
+  backdrop-filter: blur(8px);
   z-index: 100;
-  align-items: center; justify-content: center;
+  align-items: center;
+  justify-content: center;
   padding: 1rem;
 }
 
-#overlay.show { display: flex; }
+#overlay.show {
+  display: flex;
+}
 
 #premium-dialog {
-  background: var(--surface);
-  border-radius: var(--radius-xl);
-  border: 0.5px solid var(--border);
-  box-shadow: 0 20px 60px rgba(0,0,0,0.18);
+  background: rgba(255, 255, 255, 0.96);
+  backdrop-filter: blur(16px);
+  border-radius: 28px;
+  border: 1px solid rgba(91, 82, 196, 0.12);
+  box-shadow: 0 30px 70px rgba(17, 20, 38, 0.22);
   padding: 2rem;
-  max-width: 400px;
+  max-width: 430px;
   width: 100%;
   text-align: center;
   animation: pop-in 0.22s ease;
 }
 
 @keyframes pop-in {
-  from { transform: scale(0.9) translateY(12px); opacity: 0; }
-  to   { transform: scale(1) translateY(0);      opacity: 1; }
+  from {
+    transform: scale(0.92) translateY(14px);
+    opacity: 0;
+  }
+  to {
+    transform: scale(1) translateY(0);
+    opacity: 1;
+  }
 }
 
 .dialog-icon {
-  width: 60px; height: 60px;
-  border-radius: var(--radius-lg);
-  background: var(--amber-light);
-  display: flex; align-items: center; justify-content: center;
+  width: 68px;
+  height: 68px;
+  border-radius: 20px;
+  background: linear-gradient(135deg, #fff5df 0%, #ffe7b8 100%);
+  display: flex;
+  align-items: center;
+  justify-content: center;
   margin: 0 auto 1.25rem;
-  border: 0.5px solid rgba(186,117,23,0.2);
+  border: 1px solid rgba(200, 132, 30, 0.18);
+  box-shadow: 0 12px 24px rgba(200, 132, 30, 0.12);
 }
 
-.dialog-icon svg { width: 28px; height: 28px; }
+.dialog-icon svg {
+  width: 30px;
+  height: 30px;
+}
 
 #premium-dialog h2 {
-  font-size: 19px;
-  font-weight: 600;
+  font-size: 1.45rem;
+  font-weight: 800;
   margin-bottom: 0.5rem;
+  letter-spacing: -0.02em;
 }
 
 #premium-dialog p {
-  font-size: 14px;
+  font-size: 0.95rem;
   color: var(--text-secondary);
-  margin-bottom: 1.5rem;
-  line-height: 1.6;
+  margin-bottom: 1.4rem;
+  line-height: 1.7;
 }
 
 .perks {
   list-style: none;
   text-align: left;
-  margin-bottom: 1.75rem;
+  margin-bottom: 1.7rem;
+  background: #fafaff;
+  border: 1px solid rgba(91, 82, 196, 0.08);
+  border-radius: 18px;
+  padding: 0.85rem 1rem;
 }
 
 .perks li {
@@ -359,51 +558,73 @@ button:active { transform: scale(0.98); }
   color: var(--text-secondary);
   display: flex;
   align-items: center;
-  gap: 8px;
-  padding: 5px 0;
+  gap: 10px;
+  padding: 8px 0;
+}
+
+.perks li + li {
+  border-top: 1px dashed rgba(91, 82, 196, 0.10);
 }
 
 .perk-check {
-  width: 18px; height: 18px;
+  width: 20px;
+  height: 20px;
   border-radius: 50%;
   background: var(--success-light);
-  display: flex; align-items: center; justify-content: center;
+  display: flex;
+  align-items: center;
+  justify-content: center;
   flex-shrink: 0;
 }
 
-.perk-check svg { width: 10px; height: 10px; stroke: var(--success); }
+.perk-check svg {
+  width: 10px;
+  height: 10px;
+  stroke: var(--success);
+}
 
 .dialog-actions {
-  display: flex; flex-direction: column; gap: 8px;
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
 }
 
 .btn-upgrade {
-  background: linear-gradient(135deg, #5048c8 0%, #7f77dd 100%);
+  background: linear-gradient(135deg, #5b52c4 0%, #857cf0 100%);
   color: #fff;
   border: none;
-  padding: 12px;
+  padding: 13px;
   font-size: 15px;
-  border-radius: var(--radius-md);
+  border-radius: 14px;
   width: 100%;
+  box-shadow: 0 14px 26px rgba(91, 82, 196, 0.22);
 }
 
-.btn-upgrade:hover { opacity: 0.88; }
+.btn-upgrade:hover {
+  transform: translateY(-1px);
+  opacity: 0.96;
+}
 
 .btn-close-dialog {
-  background: transparent;
-  border: 0.5px solid var(--border-strong);
+  background: rgba(255, 255, 255, 0.82);
+  border: 1px solid rgba(91, 82, 196, 0.14);
   color: var(--text-secondary);
-  padding: 10px;
+  padding: 11px;
   width: 100%;
-  border-radius: var(--radius-md);
+  border-radius: 14px;
+}
+
+.btn-close-dialog:hover {
+  background: #fff;
+  color: var(--text-primary);
 }
 
 /* ── Progress bar (inside btn) ───────────────────────────── */
 #loading-bar {
   display: none;
-  height: 3px;
-  background: rgba(255,255,255,0.3);
-  border-radius: 2px;
+  height: 4px;
+  background: rgba(255, 255, 255, 0.26);
+  border-radius: 999px;
   overflow: hidden;
   width: 120px;
 }
@@ -411,12 +632,98 @@ button:active { transform: scale(0.98); }
 #loading-bar-fill {
   height: 100%;
   background: #fff;
-  border-radius: 2px;
-  animation: slide 1s infinite;
+  border-radius: 999px;
+  animation: slide 1s infinite ease-in-out;
 }
 
 @keyframes slide {
-  0%   { width: 0%; margin-left: 0; }
-  50%  { width: 60%; margin-left: 20%; }
-  100% { width: 0%; margin-left: 100%; }
-}
+  0% {
+    width: 0%;
+    margin-left: 0;
+  }
+  50% {
+    width: 60%;
+    margin-left: 20%;
+  }
+  100% {
+    width: 0%;
+    margin-left: 100%;
+  }
+}
+
+/* ── Scrollbar ───────────────────────────────────────────── */
+::-webkit-scrollbar {
+  width: 10px;
+  height: 10px;
+}
+
+::-webkit-scrollbar-thumb {
+  background: rgba(91, 82, 196, 0.20);
+  border-radius: 999px;
+}
+
+::-webkit-scrollbar-track {
+  background: rgba(91, 82, 196, 0.05);
+}
+
+/* ── Responsive ─���────────────────────────────────────────── */
+@media (max-width: 768px) {
+  body {
+    padding: 1.25rem 0.85rem 3rem;
+  }
+
+  .card {
+    padding: 1.2rem;
+    border-radius: 22px;
+  }
+
+  #drop-zone {
+    padding: 2.3rem 1rem;
+  }
+
+  .actions {
+    flex-direction: column;
+  }
+
+  .btn-ghost,
+  .btn-primary {
+    width: 100%;
+  }
+
+  #counter-bar {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+
+  #preview-grid {
+    grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
+    gap: 10px;
+  }
+}
+
+@media (max-width: 480px) {
+  header h1 {
+    font-size: 1.85rem;
+  }
+
+  header p {
+    font-size: 0.92rem;
+  }
+
+  #premium-dialog {
+    padding: 1.3rem;
+    border-radius: 22px;
+  }
+
+  .dialog-icon {
+    width: 60px;
+    height: 60px;
+  }
+
+  #toast {
+    white-space: normal;
+    width: calc(100% - 24px);
+    text-align: center;
+    border-radius: 16px;
+  }
+}