/* ========================================
   photo.marlodev.xyz — Design System
   ======================================== */

:root {
  --bg-primary: #08090d;
  --bg-secondary: #0f1117;
  --bg-card: rgba(17, 19, 27, 0.85);
  --bg-card-hover: rgba(22, 25, 36, 0.9);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.16);

  --text-primary: #f0f0f5;
  --text-secondary: #8b8fa3;
  --text-muted: #5c5f73;

  --accent-primary: #6c5ce7;
  --accent-secondary: #a855f7;
  --accent-gradient: linear-gradient(135deg, #6c5ce7 0%, #a855f7 50%, #ec4899 100%);
  --accent-glow: rgba(108, 92, 231, 0.3);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --error: #ef4444;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 60px rgba(108, 92, 231, 0.15);

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Background Effects */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.12) 0%, transparent 70%);
  top: -200px;
  left: -100px;
  animation: float-1 20s ease-in-out infinite;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.08) 0%, transparent 70%);
  top: 50%;
  right: -150px;
  animation: float-2 25s ease-in-out infinite;
}

.glow-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.06) 0%, transparent 70%);
  bottom: -100px;
  left: 30%;
  animation: float-3 18s ease-in-out infinite;
}

@keyframes float-1 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(80px, 60px); }
  66% { transform: translate(-40px, 30px); }
}

@keyframes float-2 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-60px, -40px); }
  66% { transform: translate(40px, -20px); }
}

@keyframes float-3 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(60px, -50px); }
}

/* Container */
.container {
  position: relative;
  z-index: 1;
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 20px 60px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 48px;
  gap: 20px;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 0 30px var(--accent-glow);
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-dot {
  -webkit-text-fill-color: var(--accent-secondary);
}

.logo-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.stats {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.stat-divider {
  width: 1px;
  height: 28px;
  background: var(--border-subtle);
}

/* Upload Card */
.upload-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 6px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  transition: box-shadow var(--transition-base);
}

.upload-card:hover {
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.upload-zone {
  border: 2px dashed var(--border-default);
  border-radius: var(--radius-lg);
  padding: 56px 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.upload-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.upload-zone:hover {
  border-color: var(--accent-primary);
  background: rgba(108, 92, 231, 0.03);
}

.upload-zone:hover::before {
  opacity: 0.03;
}

.upload-zone.drag-over {
  border-color: var(--accent-primary);
  background: rgba(108, 92, 231, 0.06);
  transform: scale(1.01);
}

.upload-zone.drag-over::before {
  opacity: 0.06;
}

.upload-zone.drag-over .upload-icon {
  transform: scale(1.15) translateY(-4px);
  color: var(--accent-primary);
}

.upload-icon {
  color: var(--text-muted);
  margin-bottom: 16px;
  transition: all var(--transition-base);
  position: relative;
  z-index: 1;
  display: inline-block;
}

.upload-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}

.upload-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.upload-formats {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.format-badge {
  padding: 4px 12px;
  background: rgba(108, 92, 231, 0.1);
  border: 1px solid rgba(108, 92, 231, 0.2);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-secondary);
  letter-spacing: 0.04em;
}

.upload-limit {
  font-size: 0.78rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

/* Expire Selector */
.expire-select-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-bottom: 12px;
  position: relative;
  z-index: 2;
}

.expire-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.expire-select {
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b8fa3' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

.expire-select:hover,
.expire-select:focus {
  border-color: var(--accent-primary);
}

.expire-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* Progress */
.progress-container {
  padding: 20px 24px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.progress-filename {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 70%;
}

.progress-percent {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-primary);
  font-variant-numeric: tabular-nums;
}

.progress-bar {
  height: 6px;
  background: rgba(108, 92, 231, 0.1);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-gradient);
  border-radius: 100px;
  transition: width 100ms linear;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  width: 40px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3));
  animation: shimmer 1s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 0; }
  50% { opacity: 1; }
}

/* Result Card */
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(20px);
  animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  margin-top: 24px;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-preview {
  position: relative;
  background: repeating-conic-gradient(
    rgba(255, 255, 255, 0.03) 0% 25%,
    transparent 0% 50%
  ) 50% / 20px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  max-height: 320px;
  overflow: hidden;
}

.result-preview img {
  max-width: 100%;
  max-height: 320px;
  object-fit: contain;
  display: block;
}

.result-info {
  padding: 24px;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.result-success {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--success);
  font-weight: 700;
  font-size: 0.95rem;
}

.result-success svg {
  background: var(--success-bg);
  border-radius: 50%;
  padding: 3px;
}

.btn-upload-more {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(108, 92, 231, 0.1);
  border: 1px solid rgba(108, 92, 231, 0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.btn-upload-more:hover {
  background: rgba(108, 92, 231, 0.18);
  border-color: rgba(108, 92, 231, 0.35);
}

/* Link Groups */
.link-group {
  margin-bottom: 14px;
}

.link-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.link-input-row {
  display: flex;
  gap: 8px;
}

.link-input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.82rem;
  outline: none;
  transition: border-color var(--transition-fast);
  min-width: 0;
}

.link-input:focus {
  border-color: var(--accent-primary);
}

.btn-copy {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.btn-copy:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: rgba(108, 92, 231, 0.05);
}

.btn-copy.copied {
  border-color: var(--success);
  color: var(--success);
  background: var(--success-bg);
}

.result-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.meta-dot {
  opacity: 0.4;
}

/* Footer */
.footer {
  margin-top: auto;
  padding-top: 48px;
  text-align: center;
}

.footer p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  color: var(--text-primary);
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  z-index: 1000;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--error);
}

/* Responsive */
@media (max-width: 640px) {
  .container {
    padding: 24px 16px 40px;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 32px;
  }

  .stats {
    align-self: stretch;
    justify-content: center;
  }

  .upload-zone {
    padding: 40px 20px;
  }

  .upload-title {
    font-size: 1.05rem;
  }

  .result-info {
    padding: 18px;
  }
}