/**
 * BurstURL Image Tools - Main Stylesheet
 * Modern, dramatic design with BurstURL branding
 */

/* ========== RESET & BASE ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* BurstURL Brand Colors - 2026 Dark Theme */
  --primary: #7f0df2;
  --primary-dark: #6a0bcc;
  --primary-light: #9d4ef7;
  --secondary: #00b894;
  --accent: #fd79a8;
  
  /* Neutrals - Dark Mode */
  --dark: #0a060e;
  --surface: #1a1023;
  --gray: #a0a0a0;
  --light-gray: #6a6a6a;
  --bg-gray: rgba(26, 16, 35, 0.6);
  --white: #ffffff;
  
  /* Status Colors */
  --success: #00b894;
  --error: #d63031;
  --warning: #fdcb6e;
  --info: #74b9ff;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
}

body {
  font-family: 'Space Grotesk', var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--white);
  background: var(--dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-dark);
}

/* ========== LAYOUT ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-2xl) 0;
}

/* ========== HEADER ========== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid #e0e0e0;
  padding: var(--spacing-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--dark);
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-menu a {
  font-weight: 500;
  color: var(--gray);
  transition: color 0.2s;
}

.nav-menu a:hover {
  color: var(--primary);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--white);
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-success {
  background: var(--success);
  color: var(--white);
}

.btn-success:hover {
  background: #00966d;
}

.btn-outline {
  background: transparent;
  color: var(--gray);
  border: 1px solid var(--light-gray);
}

.btn-outline:hover {
  background: var(--bg-gray);
  border-color: var(--gray);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.125rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ========== CARDS ========== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.3s;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid #e0e0e0;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid #e0e0e0;
  background: var(--bg-gray);
}

/* ========== GRID ========== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ========== UPLOAD AREA ========== */
.upload-area {
  border: 2px dashed rgba(127, 13, 242, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  background: var(--bg-gray);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all 0.3s;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
}

.upload-area:hover {
  border-color: rgba(127, 13, 242, 0.6);
  background: rgba(26, 16, 35, 0.8);
  transform: translateY(-2px);
}

.upload-area.drag-over {
  border-color: var(--primary);
  background: rgba(127, 13, 242, 0.2);
  transform: scale(1.02);
}

.upload-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  background: rgba(127, 13, 242, 0.1);
  border: 2px solid rgba(127, 13, 242, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 3rem;
  transition: all 0.3s;
}

.upload-area:hover .upload-icon {
  background: rgba(127, 13, 242, 0.2);
  border-color: var(--primary);
  transform: scale(1.1);
}

.upload-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin: 0;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.upload-hint {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ========== FORMS ========== */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--dark);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: all 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.form-input::placeholder {
  color: var(--light-gray);
}

/* ========== UTILITIES ========== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-gray { color: var(--gray); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }

.bg-primary { background: var(--primary); }
.bg-white { background: var(--white); }
.bg-gray { background: var(--bg-gray); }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-center { 
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.hidden { display: none; }

/* ========== HELP US GROW WIDGET ========== */
.glx-grow-section {
  padding: var(--spacing-2xl) 0;
}

.glx-grow-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.glx-grow-heading {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.glx-grow-heading h2 {
  font-size: 2.25rem;
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.glx-grow-heading p {
  color: rgba(255, 255, 255, 0.7);
}

.glx-grow-grid {
  display: grid;
  gap: var(--spacing-lg);
}

.glx-grow-card {
  background: #f1f5f9;
  color: #0f172a;
  border-radius: 20px;
  padding: var(--spacing-xl);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

.glx-grow-card h3 {
  margin-bottom: var(--spacing-md);
  color: #0f172a;
}

.glx-grow-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
}

.glx-grow-field {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.glx-grow-input {
  width: 100%;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  padding: 12px 14px;
  font-size: 1rem;
  color: #0f172a;
}

.glx-grow-input:focus {
  outline: none;
  border-color: #8b5cf6;
  box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

.glx-grow-helper {
  font-size: 0.75rem;
  color: #64748b;
}

.glx-grow-submit {
  border-radius: 14px;
  border: none;
  background: #0f172a;
  color: #ffffff;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  align-self: start;
}

.glx-grow-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.2);
}

.glx-grow-thanks {
  margin-top: var(--spacing-sm);
  color: #16a34a;
  font-weight: 600;
  font-size: 0.9rem;
  display: none;
}

.glx-grow-actions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--spacing-sm);
}

.glx-grow-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #ffffff;
  padding: 12px 14px;
  font-weight: 700;
  color: #0f172a;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-align: center;
}

.glx-grow-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.15);
}

.glx-grow-copied {
  margin-top: var(--spacing-sm);
  color: #16a34a;
  font-weight: 600;
  font-size: 0.9rem;
  display: none;
}

@media (max-width: 900px) {
  .glx-grow-form {
    grid-template-columns: 1fr;
  }

  .glx-grow-actions {
    grid-template-columns: 1fr;
  }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .container {
    max-width: 960px;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  .nav-menu {
    display: none;
  }
}

@media (max-width: 480px) {
  .container,
  .container-fluid {
    padding: 0 var(--spacing-md);
  }
  
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
}