@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ==========================================================================
   Joy MediaShare - Modern Cloud File Sharing Theme
   Strict Original Quality Media Sharing (বাংলা সংস্করণ)
   Supports: Dark Mode (Default) & Light Mode with Smooth Dynamic Switch
   ========================================================================== */

/* --------------------------------------------------------------------------
   THEME VARIABLES: LIGHT MODE
   -------------------------------------------------------------------------- */
:root, [data-theme="light"] {
  --color-bg-base: #f1f5f9;
  --color-bg-mesh: radial-gradient(at 0% 0%, rgba(224, 242, 254, 0.8) 0px, transparent 50%),
                   radial-gradient(at 100% 100%, rgba(219, 234, 254, 0.6) 0px, transparent 50%);
  --color-surface-card: #ffffff;
  --color-surface-card-subtle: #f8fafc;
  --color-surface-card-hover: #f1f5f9;

  --color-primary-navy: #0f172a;
  --color-primary-accent: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-accent-cyan: #0284c7;
  --color-accent-teal: #0d9488;
  --color-accent-purple: #7c3aed;

  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-border-focus: #3b82f6;

  --color-text-main: #0f172a;
  --color-text-muted: #475569;
  --color-text-light: #64748b;

  --color-dropzone-bg: #f8fafc;
  --color-dropzone-border: #cbd5e1;
  --color-dropzone-hover: #eff6ff;

  --color-success: #10b981;
  --color-success-bg: #ecfdf5;
  --color-success-border: #a7f3d0;
  --color-success-text: #065f46;

  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-error-bg: #fef2f2;
  --color-error-border: #fecaca;

  --color-input-bg: #ffffff;
  --color-header-bg: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
  --color-header-border: rgba(255, 255, 255, 0.12);
  --color-footer-bg: #ffffff;
  --color-footer-border: #e2e8f0;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);

  /* Creator Modal / About Me in Light Mode */
  --creator-modal-bg: linear-gradient(145deg, #ffffff 0%, #f0f7ff 100%);
  --creator-modal-border: rgba(14, 165, 233, 0.4);
  --creator-modal-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25), 0 0 25px rgba(14, 165, 233, 0.2);
  --creator-modal-text: #0f172a;
  --creator-modal-bio: #334155;
  --creator-modal-badge-bg: #e0f2fe;
  --creator-modal-badge-border: #7dd3fc;
  --creator-modal-badge-text: #0369a1;
  --creator-modal-icon-bg: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
  --creator-modal-icon-border: #38bdf8;
  --creator-modal-icon-color: #0284c7;
  --creator-modal-close-bg: #f1f5f9;
  --creator-modal-close-border: #cbd5e1;
  --creator-modal-close-color: #475569;

  /* Theme Toggle Pill in Light Mode */
  --theme-btn-bg: rgba(255, 255, 255, 0.15);
  --theme-btn-border: rgba(255, 255, 255, 0.25);
  --theme-btn-text: #ffffff;
  --theme-btn-hover-bg: rgba(255, 255, 255, 0.25);
  --theme-sun-color: #fbbf24;
  --theme-moon-color: #93c5fd;

  /* Progress Bar Glow */
  --progress-glow: 0 0 15px rgba(37, 99, 235, 0.35);
  --progress-track-bg: #e2e8f0;
}

/* --------------------------------------------------------------------------
   THEME VARIABLES: DARK MODE (DEFAULT)
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --color-bg-base: #070d1d;
  --color-bg-mesh: radial-gradient(at 0% 0%, rgba(30, 58, 138, 0.3) 0px, transparent 50%),
                   radial-gradient(at 100% 100%, rgba(14, 116, 144, 0.25) 0px, transparent 50%);
  --color-surface-card: #0d172e;
  --color-surface-card-subtle: #111e3b;
  --color-surface-card-hover: #16264d;

  --color-primary-navy: #f8fafc;
  --color-primary-accent: #38bdf8;
  --color-primary-hover: #0284c7;
  --color-accent-cyan: #38bdf8;
  --color-accent-teal: #2dd4bf;
  --color-accent-purple: #a855f7;

  --color-border: rgba(56, 189, 248, 0.16);
  --color-border-hover: rgba(56, 189, 248, 0.35);
  --color-border-focus: #38bdf8;

  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-light: #64748b;

  --color-dropzone-bg: #091226;
  --color-dropzone-border: rgba(56, 189, 248, 0.28);
  --color-dropzone-hover: #0f1d3c;

  --color-success: #34d399;
  --color-success-bg: rgba(6, 78, 59, 0.35);
  --color-success-border: rgba(52, 211, 153, 0.4);
  --color-success-text: #a7f3d0;

  --color-warning: #fbbf24;
  --color-error: #f87171;
  --color-error-bg: rgba(127, 29, 29, 0.35);
  --color-error-border: rgba(248, 113, 113, 0.4);

  --color-input-bg: #080f20;
  --color-header-bg: linear-gradient(135deg, #030712 0%, #0b152d 100%);
  --color-header-border: rgba(56, 189, 248, 0.2);
  --color-footer-bg: #050b18;
  --color-footer-border: rgba(56, 189, 248, 0.12);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.7), 0 8px 10px -6px rgba(0, 0, 0, 0.5);

  /* Creator Modal / About Me in Dark Mode */
  --creator-modal-bg: linear-gradient(145deg, #060b18 0%, #0e1a38 100%);
  --creator-modal-border: rgba(56, 189, 248, 0.45);
  --creator-modal-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.9), 0 0 35px rgba(6, 182, 212, 0.35);
  --creator-modal-text: #ffffff;
  --creator-modal-bio: #cbd5e1;
  --creator-modal-badge-bg: rgba(6, 182, 212, 0.15);
  --creator-modal-badge-border: rgba(6, 182, 212, 0.35);
  --creator-modal-badge-text: #38bdf8;
  --creator-modal-icon-bg: linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(6, 182, 212, 0.35));
  --creator-modal-icon-border: rgba(6, 182, 212, 0.55);
  --creator-modal-icon-color: #38bdf8;
  --creator-modal-close-bg: rgba(255, 255, 255, 0.08);
  --creator-modal-close-border: rgba(255, 255, 255, 0.15);
  --creator-modal-close-color: #cbd5e1;

  /* Theme Toggle Pill in Dark Mode */
  --theme-btn-bg: rgba(255, 255, 255, 0.1);
  --theme-btn-border: rgba(56, 189, 248, 0.3);
  --theme-btn-text: #ffffff;
  --theme-btn-hover-bg: rgba(56, 189, 248, 0.2);
  --theme-sun-color: #fde047;
  --theme-moon-color: #93c5fd;

  /* Progress Bar Glow */
  --progress-glow: 0 0 20px rgba(56, 189, 248, 0.6);
  --progress-track-bg: #091226;
}

/* --------------------------------------------------------------------------
   SHARED CONSTANTS & TRANSITIONS
   -------------------------------------------------------------------------- */
:root {
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-sans: 'Hind Siliguri', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-theme: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

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

html {
  transition: var(--transition-theme);
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg-base);
  background-image: var(--color-bg-mesh);
  background-attachment: fixed;
  color: var(--color-text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  transition: var(--transition-theme);
}

/* ==========================================================================
   NAVIGATION & BRAND HEADER
   ========================================================================== */
.site-header {
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-header-border);
  color: #ffffff;
  padding: 0.9rem 1.5rem;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  transition: var(--transition-theme);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: #ffffff;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #3a86ff, #06b6d4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(58, 134, 255, 0.45);
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: #ffffff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  line-height: 1.1;
  color: #ffffff;
}

.brand-tag {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-cyan);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: #e2e8f0;
}

.header-badge svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-accent-cyan);
  fill: none;
}

/* --------------------------------------------------------------------------
   THEME TOGGLE BUTTON (DARK / LIGHT MODE)
   -------------------------------------------------------------------------- */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--theme-btn-bg);
  border: 1px solid var(--theme-btn-border);
  color: var(--theme-btn-text);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
  user-select: none;
}

.theme-toggle-btn:hover {
  background: var(--theme-btn-hover-bg);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.theme-toggle-btn .sun-icon {
  color: var(--theme-sun-color);
  display: none;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.theme-toggle-btn .moon-icon {
  color: var(--theme-moon-color);
  display: inline-block;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* In Dark Mode: Show Sun icon (click to switch to light) */
[data-theme="dark"] .theme-toggle-btn .sun-icon {
  display: inline-block;
  animation: sunSpin 0.5s ease-out;
}
[data-theme="dark"] .theme-toggle-btn .moon-icon {
  display: none;
}

/* In Light Mode: Show Moon icon (click to switch to dark) */
[data-theme="light"] .theme-toggle-btn .sun-icon {
  display: none;
}
[data-theme="light"] .theme-toggle-btn .moon-icon {
  display: inline-block;
  animation: moonTilt 0.4s ease-out;
}

@keyframes sunSpin {
  from { transform: rotate(-90deg) scale(0.6); opacity: 0; }
  to { transform: rotate(0) scale(1); opacity: 1; }
}

@keyframes moonTilt {
  from { transform: rotate(45deg) scale(0.6); opacity: 0; }
  to { transform: rotate(0) scale(1); opacity: 1; }
}

/* ==========================================================================
   MAIN CONTENT & CONTAINER
   ========================================================================== */
.main-wrapper {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 3.5rem;
}

/* ==========================================================================
   HERO & EXPLANATORY SECTION
   ========================================================================== */
.hero-section {
  text-align: center;
  margin-bottom: 2.25rem;
}

.hero-title {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--color-primary-navy);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 650px;
  margin: 0 auto 1.5rem;
  transition: color 0.3s ease;
}

.quality-guarantee-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.guarantee-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--color-text-main);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-theme);
}

.guarantee-pill svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-primary-accent);
}

/* ==========================================================================
   CARDS & COMMON CONTAINERS
   ========================================================================== */
.card {
  background: var(--color-surface-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: var(--transition-theme);
}

/* ==========================================================================
   UPLOAD DROPZONE & CONTROLS
   ========================================================================== */
.dropzone-container {
  border: 2px dashed var(--color-dropzone-border);
  border-radius: var(--radius-md);
  background: var(--color-dropzone-bg);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.dropzone-container:hover,
.dropzone-container.drag-over {
  border-color: var(--color-primary-accent);
  background: var(--color-dropzone-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(56, 189, 248, 0.15);
}

.dropzone-icon {
  width: 68px;
  height: 68px;
  margin: 0 auto 1rem;
  border-radius: 50%;
  background: rgba(56, 189, 248, 0.15);
  color: var(--color-primary-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.dropzone-container:hover .dropzone-icon,
.dropzone-container.drag-over .dropzone-icon {
  transform: scale(1.1);
  background: rgba(56, 189, 248, 0.25);
}

.dropzone-icon svg {
  width: 32px;
  height: 32px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.dropzone-text-primary {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-navy);
  margin-bottom: 0.35rem;
}

.dropzone-text-secondary {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
}

.dropzone-file-input {
  display: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-family: inherit;
  line-height: 1.2;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary {
  background-color: #2563eb;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover:not(:disabled) {
  background-color: #1d4ed8;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.55);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-surface-card-subtle);
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-surface-card-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.btn-danger {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border-color: var(--color-error-border);
}

.btn-danger:hover:not(:disabled) {
  background-color: rgba(239, 68, 68, 0.2);
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.825rem;
}

.dropzone-hints {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--color-text-light);
  line-height: 1.4;
}

/* ==========================================================================
   SELECTED FILES QUEUE
   ========================================================================== */
.selected-files-section {
  margin-top: 2rem;
  display: none;
}

.selected-files-section.visible {
  display: block;
  animation: fadeIn 0.3s ease;
}

.section-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary-navy);
}

.files-summary-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.file-queue-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 0.25rem;
  margin-bottom: 1.5rem;
}

.file-queue-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--color-surface-card-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition-theme);
}

.file-queue-item:hover {
  border-color: var(--color-border-hover);
  background: var(--color-surface-card-hover);
}

.file-queue-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
  flex: 1;
}

.file-type-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary-accent);
}

.file-type-icon.video {
  color: var(--color-accent-purple);
}

.file-info-col {
  min-width: 0;
  flex: 1;
}

.file-name-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-meta-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.remove-file-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-light);
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.remove-file-btn:hover {
  color: var(--color-error);
  background: var(--color-error-bg);
}

.queue-actions-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  gap: 1rem;
  flex-wrap: wrap;
}

/* ==========================================================================
   ANIMATED UPLOAD PROGRESS BAR (OPTION 3)
   ========================================================================== */
.upload-progress-container {
  display: none;
  margin-top: 1.75rem;
}

.upload-progress-container.visible {
  display: block;
  animation: slideDownFade 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideDownFade {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.progress-main-card {
  background: var(--color-surface-card-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

/* Header Row */
.progress-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  gap: 1rem;
}

.progress-status-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

/* Pulsing live dot */
.progress-pulse-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-primary-accent);
  box-shadow: 0 0 10px var(--color-primary-accent);
  animation: pulseDot 1.4s infinite ease-in-out;
  flex-shrink: 0;
}

.progress-pulse-dot.pulse-gold {
  background-color: var(--color-warning);
  box-shadow: 0 0 12px var(--color-warning);
}

@keyframes pulseDot {
  0% { transform: scale(0.85); opacity: 0.6; }
  50% { transform: scale(1.25); opacity: 1; }
  100% { transform: scale(0.85); opacity: 0.6; }
}

.progress-status-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary-navy);
}

/* Percentage Badge */
.progress-percent-badge {
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.35);
  color: var(--color-primary-accent);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

/* Track and Animated Fill */
.progress-track {
  width: 100%;
  height: 14px;
  background-color: var(--progress-track-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--color-border);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  margin-bottom: 1rem;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563eb 0%, #06b6d4 50%, #38bdf8 100%);
  background-size: 200% 100%;
  border-radius: var(--radius-full);
  position: relative;
  transition: width 0.15s ease-out;
  box-shadow: var(--progress-glow);
  overflow: hidden;
}

/* Diagonal animated stripes over progress bar */
.progress-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.25) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.25) 50%,
    rgba(255, 255, 255, 0.25) 75%,
    transparent 75%,
    transparent
  );
  background-size: 24px 24px;
  animation: progressStripes 1s linear infinite;
}

@keyframes progressStripes {
  0% { background-position: 0 0; }
  100% { background-position: 24px 0; }
}

/* Shimmer highlight that sweeps smoothly */
.progress-glow-highlight {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: shimmerRay 1.8s infinite;
}

@keyframes shimmerRay {
  100% { left: 200%; }
}

/* Stats Grid (Transfer, Speed, ETA) */
.progress-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.prog-stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.prog-stat-label {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.prog-stat-val {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Progress Footer */
.progress-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.progress-hint-note {
  font-size: 0.78rem;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* ==========================================================================
   UPLOAD SUCCESS SCREEN & QR SHARING
   ========================================================================== */
.upload-success-container {
  display: none;
}

.upload-success-container.visible {
  display: block;
  animation: fadeInUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.success-badge-banner {
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success-text);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.success-badge-banner svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-success);
  flex-shrink: 0;
}

.share-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 860px) {
  .share-grid {
    grid-template-columns: 1fr;
  }
}

.share-details-col {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.share-link-box {
  background: var(--color-surface-card-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.share-label {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
  display: block;
}

.copy-input-group {
  display: flex;
  gap: 0.5rem;
}

.copy-input {
  flex: 1;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-text-main);
  background: var(--color-input-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition-theme);
}

.copy-input:focus {
  border-color: var(--color-border-focus);
}

.session-metadata-summary {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--color-border);
}

.meta-row:last-child {
  border-bottom: none;
}

.meta-value {
  font-weight: 600;
  color: var(--color-text-main);
  font-family: var(--font-mono);
  font-size: 0.825rem;
}

.qr-preview-col {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-theme);
}

.qr-image-wrapper {
  background: #ffffff;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.qr-image {
  width: 220px;
  height: 220px;
  display: block;
}

.qr-caption {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.action-buttons-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

/* ==========================================================================
   GALLERY PAGE STYLES
   ========================================================================== */
.gallery-header-bar {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-theme);
}

.gallery-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1rem;
}

.gallery-title-wrapper {
  display: flex;
  flex-direction: column;
}

.gallery-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-primary-navy);
  letter-spacing: -0.02em;
}

.gallery-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.gallery-actions-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.gallery-stats-pills {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.stat-pill strong {
  color: var(--color-text-main);
}

/* Media Grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
  gap: 1.5rem;
}

.media-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), var(--transition-theme);
}

.media-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-hover);
}

.media-preview-container {
  width: 100%;
  height: 220px;
  background-color: #0b132b;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  cursor: pointer;
  transition: transform var(--transition-normal);
}

.media-card:hover .media-preview-img {
  transform: scale(1.03);
}

.media-preview-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000000;
}

.media-fallback-banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: #94a3b8;
  padding: 1.5rem;
  text-align: center;
  height: 100%;
}

.media-fallback-banner svg {
  width: 48px;
  height: 48px;
  stroke: #64748b;
}

.media-card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
}

.media-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.4rem;
}

.media-meta-tags {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.775rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.tag-badge {
  background: var(--color-surface-card-subtle);
  border: 1px solid var(--color-border);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.checksum-bar {
  background: var(--color-surface-card-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.checksum-bar:hover {
  background: var(--color-surface-card-hover);
  color: var(--color-text-main);
}

.checksum-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.media-card-footer {
  margin-top: auto;
}

/* ==========================================================================
   MODAL / LIGHTBOX
   ========================================================================== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 7, 18, 0.82);
  backdrop-filter: blur(6px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay.open {
  display: flex;
}

.modal-dialog {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
  transition: var(--transition-theme);
}

.modal-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary-navy);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 1rem;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
}

.modal-close-btn:hover {
  color: var(--color-text-main);
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000000;
}

.lightbox-img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  display: block;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface-card);
}

/* ==========================================================================
   ALERTS, TOASTS & SPINNERS
   ========================================================================== */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.alert-error {
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  color: var(--color-error);
}

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--color-primary-navy);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 200;
  display: none;
  animation: slideUp 0.25s ease;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.toast.show {
  display: block;
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  background: var(--color-surface-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: var(--transition-theme);
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  color: var(--color-text-light);
}

/* ==========================================================================
   ABOUT DEVELOPER / CREATOR MODAL (THEME ADAPTED)
   ========================================================================== */
.floating-creator-btn {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 95;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, #091024 0%, #172554 100%);
  color: #ffffff;
  border: 1px solid rgba(56, 189, 248, 0.6);
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45), 0 0 15px rgba(6, 182, 212, 0.35);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-normal);
  backdrop-filter: blur(8px);
}

[data-theme="light"] .floating-creator-btn {
  background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 100%);
  color: #0f172a;
  border: 1px solid rgba(14, 165, 233, 0.4);
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.15), 0 0 15px rgba(14, 165, 233, 0.25);
}

.floating-creator-btn:hover {
  transform: translateY(-3px) scale(1.03);
  border-color: #67e8f9;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 25px rgba(6, 182, 212, 0.6);
}

.floating-creator-btn svg {
  color: var(--color-accent-cyan);
  transition: transform var(--transition-fast);
}

.floating-creator-btn:hover svg {
  transform: rotate(-10deg) scale(1.1);
}

.creator-modal-card {
  background: var(--creator-modal-bg);
  border: 1px solid var(--creator-modal-border);
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 92%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.5rem 2rem 2.25rem;
  text-align: center;
  color: var(--creator-modal-text);
  box-shadow: var(--creator-modal-shadow);
  position: relative;
  animation: modalPopIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transition: var(--transition-theme);
}

@keyframes modalPopIn {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(15px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.creator-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--creator-modal-close-bg);
  border: 1px solid var(--creator-modal-close-border);
  color: var(--creator-modal-close-color);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.creator-modal-close:hover {
  background: rgba(239, 68, 68, 0.25);
  border-color: var(--color-error);
  color: #ffffff;
  transform: rotate(90deg);
}

.developer-icon-badge {
  width: 60px;
  height: 60px;
  margin: 0 auto 1.25rem;
  background: var(--creator-modal-icon-bg);
  border: 1px solid var(--creator-modal-icon-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--creator-modal-icon-color);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.35);
}

.creator-name {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--creator-modal-text);
  margin-bottom: 0.35rem;
}

.creator-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--creator-modal-badge-bg);
  border: 1px solid var(--creator-modal-badge-border);
  color: var(--creator-modal-badge-text);
  padding: 0.25rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.creator-bio {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--creator-modal-bio);
  max-width: 480px;
  margin: 0 auto 1.75rem;
}

.creator-action-box {
  display: flex;
  justify-content: center;
}

.neon-connect-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background: linear-gradient(135deg, #1d4ed8 0%, #0284c7 100%);
  color: #ffffff !important;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  border: 1px solid #38bdf8;
  box-shadow: 0 0 18px rgba(56, 189, 248, 0.55), 0 4px 15px rgba(29, 78, 216, 0.4);
  transition: all var(--transition-normal);
  letter-spacing: 0.01em;
}

.neon-connect-btn:hover {
  background: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  border-color: #67e8f9;
  box-shadow: 0 0 28px rgba(6, 182, 212, 0.85), 0 6px 20px rgba(37, 99, 235, 0.65);
  transform: translateY(-2px);
  color: #ffffff !important;
}

.neon-connect-btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.neon-connect-btn:hover svg:last-child {
  transform: translateX(3px);
}

.footer-creator-link {
  background: none;
  border: none;
  color: var(--color-primary-accent);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: underline;
  padding: 0.2rem 0.4rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-creator-link:hover {
  color: var(--color-primary-hover);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: var(--color-footer-bg);
  border-top: 1px solid var(--color-footer-border);
  padding: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: var(--transition-theme);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */
@media (max-width: 768px) {
  .site-header {
    padding: 0.75rem 1rem;
  }

  .main-wrapper {
    padding: 1.25rem 1rem 2.5rem;
  }

  .card {
    padding: 1.5rem 1.15rem;
  }

  .hero-title {
    font-size: 1.85rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
  }

  .dropzone-container {
    padding: 2.25rem 1rem;
  }

  .progress-stats-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .gallery-header-bar {
    padding: 1.25rem 1.15rem;
  }

  .gallery-title {
    font-size: 1.4rem;
  }

  .gallery-actions-bar {
    width: 100%;
  }

  .gallery-actions-bar .btn {
    flex: 1;
  }

  .modal-dialog {
    width: 96%;
    max-height: 94vh;
  }
}

@media (max-width: 600px) {
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .site-header .brand-name {
    font-size: 1.1rem;
  }

  .site-header .header-badge {
    display: none; /* Hide on smallest screens to give room for theme toggle */
  }

  .main-wrapper {
    padding: 1rem 0.75rem 2rem;
  }

  .card {
    padding: 1.15rem 0.85rem;
    border-radius: var(--radius-md);
  }

  .hero-title {
    font-size: 1.55rem;
  }

  .hero-section {
    margin-bottom: 1.5rem;
  }

  .quality-guarantee-pills {
    gap: 0.5rem;
  }

  .guarantee-pill {
    width: 100%;
    justify-content: center;
    font-size: 0.775rem;
  }

  .dropzone-container {
    padding: 1.75rem 0.75rem;
  }

  .dropzone-icon {
    width: 52px;
    height: 52px;
    margin-bottom: 0.75rem;
  }

  .dropzone-text-primary {
    font-size: 1.05rem;
  }

  .copy-input-group {
    flex-direction: column;
  }

  .copy-input-group .btn {
    width: 100%;
  }

  .action-buttons-group {
    flex-direction: column;
  }

  .action-buttons-group .btn {
    width: 100%;
  }

  .queue-actions-row {
    flex-direction: column;
  }

  .queue-actions-row .btn {
    width: 100%;
  }

  .qr-image {
    width: 180px;
    height: 180px;
  }

  .creator-modal-card {
    padding: 2rem 1.25rem 1.75rem;
    width: 95%;
  }

  .floating-creator-btn {
    bottom: 1rem;
    right: 1rem;
    padding: 0.55rem 0.95rem;
    font-size: 0.8rem;
  }

  .creator-name {
    font-size: 1.35rem;
  }

  .creator-bio {
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
  }

  .neon-connect-btn {
    width: 100%;
    padding: 0.8rem 1.25rem;
    font-size: 0.95rem;
  }

  .btn {
    min-height: 44px;
  }
}