/* ==========================================================================
   DIGIFRAME MAKER MODERN DESIGN SYSTEM
   Theme: Sleek Dark / Glassmorphic with Neon Cyber Accents
   Typography: Plus Jakarta Sans & Outfit
   ========================================================================== */

:root {
  --bg-main: #0B0F19;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-surface: #111827;
  --bg-input: #1E293B;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #6366F1;
  --border-active: #EC4899;

  --primary: #6366F1;
  --primary-hover: #4F46E5;
  --primary-glow: rgba(99, 102, 241, 0.35);

  --accent-pink: #EC4899;
  --accent-cyan: #06B6D4;
  --accent-amber: #F59E0B;
  --accent-green: #10B981;

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(99, 102, 241, 0.4);

  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Plus Jakarta Sans', sans-serif;

  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 15% 10%, rgba(99, 102, 241, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(236, 72, 153, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
}

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(11, 15, 25, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.85rem 1.5rem;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-main);
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--accent-pink));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #FFFFFF, #CBD5E1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text span {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.nav-badges {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.feature-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.feature-pill.speed {
  background: rgba(6, 182, 212, 0.15);
  color: var(--accent-cyan);
  border-color: rgba(6, 182, 212, 0.3);
}

/* MAIN APP WRAPPER */
.app-layout {
  max-width: 1400px;
  margin: 1.5rem auto 3rem;
  padding: 0 1.25rem;
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .app-layout {
    grid-template-columns: 1fr;
    max-width: 680px;
    gap: 1.5rem;
  }
}

/* LEFT COLUMN: CANVAS WORKSPACE */
.canvas-workspace {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: static;
  width: 100%;
}

@media (min-width: 1025px) {
  .canvas-workspace {
    position: sticky;
    top: 1.5rem;
  }
}

@media (max-width: 1024px) {
  .canvas-workspace {
    position: static !important;
    top: auto !important;
  }
  .studio-panel {
    position: static !important;
    width: 100%;
  }
}

.canvas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.6rem;
}

.workspace-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.resolution-badge {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  font-weight: 600;
}

.canvas-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #020617;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.canvas-container.drag-over {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.5);
  transform: scale(1.01);
}

#twibbonCanvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: pan-y; /* Allow vertical page scroll by default on touch devices */
}

#twibbonCanvas.photo-loaded {
  touch-action: none; /* Disables page scroll only while actively manipulating a loaded photo */
}

/* Floating overlay bar on canvas */
.canvas-float-bar {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  padding: 0.35rem 0.6rem;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-md);
  z-index: 10;
}

.btn-float {
  background: transparent;
  border: none;
  color: var(--text-main);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-float:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--accent-cyan);
}

.drag-hint-badge {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
  padding: 0.3rem 0.8rem;
  border-radius: 9999px;
  border: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* PRIMARY PHOTO ACTION BUTTONS */
.photo-actions {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 0.75rem;
  width: 100%;
}

@media (max-width: 640px) {
  .photo-actions {
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
  }
  .photo-actions #btnPickPhoto {
    grid-column: span 2;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-weight: 800;
    border-radius: 1rem;
    box-shadow: 0 10px 25px -4px rgba(37, 99, 235, 0.45);
  }
  .photo-actions #btnCamera,
  .photo-actions #btnUseDemo {
    padding: 0.75rem 0.65rem;
    font-size: 0.85rem;
    border-radius: 0.85rem;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #FFFFFF;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #7C3AED, var(--primary));
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.btn-demo {
  background: rgba(236, 72, 153, 0.15);
  color: #F472B6;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.btn-demo:hover {
  background: rgba(236, 72, 153, 0.25);
  border-color: #EC4899;
  transform: translateY(-2px);
}

/* RIGHT COLUMN: STUDIO CONTROLS */
.studio-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title span.badge-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #FFF;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* SLIDERS & CONTROLS */
.control-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.control-row:last-child {
  margin-bottom: 0;
}

.control-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.control-val {
  color: var(--accent-cyan);
  font-weight: 700;
}

.range-slider {
  width: 100%;
  height: 6px;
  background: #1E293B;
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  cursor: pointer;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.6);
  border: 2px solid #FFFFFF;
  transition: transform 0.15s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* PRESET FRAMES LIST */
.preset-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (max-width: 480px) {
  .preset-list {
    grid-template-columns: 1fr;
  }
}

.preset-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.6rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.preset-card:hover {
  border-color: rgba(99, 102, 241, 0.4);
  transform: translateY(-2px);
}

.preset-card.active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.12);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.3);
}

.preset-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #020617;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.preset-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preset-badge {
  position: absolute;
  bottom: 0.35rem;
  left: 0.35rem;
  font-size: 0.65rem;
  padding: 0.15rem 0.4rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(4px);
  border-radius: 4px;
  color: #F8FAFC;
  font-weight: 600;
}

.preset-info h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preset-tag {
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* Custom Frame Upload Box */
.custom-frame-box {
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.02);
}

.custom-frame-box:hover {
  border-color: var(--accent-pink);
  background: rgba(236, 72, 153, 0.05);
}

.custom-frame-box.active {
  border-color: var(--accent-pink);
  background: rgba(236, 72, 153, 0.1);
}

.custom-frame-icon {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.custom-frame-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.custom-frame-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* INPUTS & FORMS */
.input-group {
  margin-bottom: 0.75rem;
}

.input-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.text-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.text-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

textarea.text-input {
  resize: vertical;
  min-height: 90px;
  font-size: 0.85rem;
  line-height: 1.5;
}

/* TOGGLE SWITCH */
.toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider-switch {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #334155;
  transition: 0.3s;
  border-radius: 24px;
}

.slider-switch:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

input:checked + .slider-switch {
  background-color: var(--accent-pink);
}

input:checked + .slider-switch:before {
  transform: translateX(20px);
}

/* DOWNLOAD & EXPORT SECTION */
.export-card {
  background: linear-gradient(135deg, rgba(30, 27, 75, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(99, 102, 241, 0.4);
}

.export-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.select-input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
}

.btn-download-big {
  width: 100%;
  padding: 1.1rem 1.5rem;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #10B981, #059669);
  color: #FFFFFF;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
}

.btn-download-big:hover {
  background: linear-gradient(135deg, #34D399, #10B981);
  box-shadow: 0 10px 32px rgba(16, 185, 129, 0.6);
  transform: translateY(-2px);
}

.caption-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 0.6rem;
}

.btn-wa {
  background: #25D366;
  color: #064E3B;
  font-weight: 700;
}

.btn-wa:hover {
  background: #22C55E;
  color: #022C22;
}

/* TOAST NOTIFICATION */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  color: #FFFFFF;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1000;
}

.toast.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.toast.error {
  border-color: #EF4444;
  background: rgba(127, 29, 29, 0.95);
}

.toast.success {
  border-color: #10B981;
}

/* SUCCESS MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: 2rem;
  max-width: 460px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.show .modal-card {
  transform: scale(1);
}

.modal-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.modal-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.modal-filename {
  font-family: monospace;
  font-size: 0.8rem;
  background: rgba(0, 0, 0, 0.4);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  display: inline-block;
  margin-bottom: 1.5rem;
}