:root {
  /* Colors */
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --secondary: #8b5cf6;
  --accent: #06b6d4;
  --success: #10b981;
  --success-light: #34d399;
  --error: #ef4444;
  --error-light: #f87171;
  --warning: #f59e0b;

  /* Dark Theme */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: rgba(30, 41, 59, 0.7);
  --bg-input: rgba(15, 23, 42, 0.8);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(148, 163, 184, 0.2);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

  /* Spacing */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background gradient */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(139, 92, 246, 0.1), transparent),
    radial-gradient(ellipse 60% 40% at 0% 100%, rgba(6, 182, 212, 0.1), transparent);
  pointer-events: none;
  z-index: -1;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

a {
  color: var(--primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 0;
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-normal);
}

.nav a:hover,
.nav a.active {
  color: var(--text-primary);
}

.nav a:hover::after,
.nav a.active::after {
  width: 100%;
}

/* Hero Section */
.hero {
  padding: 4rem 0 6rem;
  text-align: center;
}

.hero-title {
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--text-secondary);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 3rem;
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

/* IBAN Form */
.iban-form {
  max-width: 850px;
  margin: 0 auto;
}

.input-group {
  position: relative;
  margin-bottom: 1.5rem;
}

.input-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.iban-input {
  width: 100%;
  padding: 1.25rem 1.5rem;
  font-size: 1.5rem;
  font-family: 'Fira Code', 'Consolas', monospace;
  letter-spacing: 2px;
  background: var(--bg-input);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-normal);
  text-transform: uppercase;
}

.iban-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.iban-input::placeholder {
  color: var(--text-muted);
  letter-spacing: 1px;
}

.input-hint {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: var(--shadow-md), 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-full {
  width: 100%;
}

/* Result Card */
.result-card {
  margin-top: 2rem;
  overflow: hidden;
  animation: slideUp 0.5s ease;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.result-header.valid {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(52, 211, 153, 0.1));
  border-bottom: 2px solid var(--success);
}

.result-header.invalid {
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(248, 113, 113, 0.1));
  border-bottom: 2px solid var(--error);
}

.result-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.result-header.valid .result-icon {
  background: var(--success);
  color: white;
}

.result-header.invalid .result-icon {
  background: var(--error);
  color: white;
}

.result-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.result-header.valid .result-title {
  color: var(--success-light);
}

.result-header.invalid .result-title {
  color: var(--error-light);
}

.result-body {
  padding: 0;
}

/* New Logo Section */
.bank-logo-section {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 252, 0.9));
  border-radius: var(--radius-md);
  margin: 1rem 1.5rem;
}

.bank-logo-large {
  max-width: 200px;
  max-height: 100px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
}

/* Info Rows */
.info-rows {
  display: flex;
  flex-direction: column;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-fast);
}

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

.info-row:nth-child(odd) {
  background: rgba(99, 102, 241, 0.03);
}

.info-row:hover {
  background: rgba(99, 102, 241, 0.08);
}

.info-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.info-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-light);
  text-align: right;
}

.info-value.mono {
  font-family: 'Fira Code', monospace;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

/* Legacy styles - keep for backwards compatibility */
.result-iban {
  font-family: 'Fira Code', monospace;
  font-size: 1.25rem;
  color: var(--text-primary);
  background: var(--bg-input);
  padding: 1rem;
  border-radius: var(--radius-sm);
  text-align: center;
  letter-spacing: 3px;
  margin-bottom: 1.5rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.result-item {
  background: var(--bg-input);
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.result-item-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.result-item-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Bank Card in Result */
.bank-result {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.1);
}

.bank-logo {
  width: 80px;
  height: 80px;
  min-width: 80px;
  object-fit: contain;
  background: linear-gradient(145deg, #ffffff, #f8fafc);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.bank-info {
  flex: 1;
}

.bank-info h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.bank-type {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.15);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.bank-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.bank-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-input);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
}

/* Error List */
.error-list {
  list-style: none;
  padding: 1rem;
}

.error-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  color: var(--error-light);
}

.error-list li::before {
  content: '✕';
  color: var(--error);
}

/* Banks Grid */
.banks-section {
  padding: 4rem 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.search-box {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.search-input {
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  min-width: 250px;
}

.search-input:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-select {
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  min-width: 200px;
}

.banks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.bank-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-normal);
  cursor: pointer;
}

.bank-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.bank-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.bank-card-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  background: white;
  border-radius: var(--radius-sm);
  padding: 6px;
}

.bank-card-name {
  font-size: 1rem;
  font-weight: 600;
  flex: 1;
}

.bank-card-type {
  font-size: 0.75rem;
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  margin-top: 0.25rem;
  display: inline-block;
}

.bank-card-details {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.bank-card-details span {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Stats Section */
.stats-section {
  padding: 3rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

/* Footer */
.footer {
  padding: 3rem 0;
  margin-top: 4rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
}

/* Loader */
.loader {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero {
    padding: 2rem 0 4rem;
  }

  .iban-input {
    font-size: 1rem;
    padding: 1rem;
    letter-spacing: 1px;
  }

  .glass-card {
    padding: 1.5rem;
  }

  .bank-result {
    flex-direction: column;
    text-align: center;
  }

  .result-grid {
    grid-template-columns: 1fr;
  }

  .section-header {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box {
    flex-direction: column;
  }

  .search-input,
  .filter-select {
    min-width: 100%;
  }

  /* New result card responsive */
  .bank-logo-section {
    padding: 1.5rem;
    margin: 0.75rem 1rem;
  }

  .bank-logo-large {
    max-width: 150px;
    max-height: 70px;
  }

  .info-row {
    padding: 0.875rem 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .info-label {
    font-size: 0.7rem;
  }

  .info-value {
    font-size: 0.9rem;
  }

  .info-value.mono {
    font-size: 0.75rem;
    word-break: break-all;
  }
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.mt-1 {
  margin-top: 0.5rem;
}

.mt-2 {
  margin-top: 1rem;
}

.mt-3 {
  margin-top: 1.5rem;
}

.mt-4 {
  margin-top: 2rem;
}

.mb-1 {
  margin-bottom: 0.5rem;
}

.mb-2 {
  margin-bottom: 1rem;
}

.mb-3 {
  margin-bottom: 1.5rem;
}

.mb-4 {
  margin-bottom: 2rem;
}

/* API Section Styles */
.api-block {
  margin-bottom: 2rem;
}

.api-block:last-child {
  margin-bottom: 0;
}

.api-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.api-endpoint {
  display: inline-block;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 1rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.3);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  color: var(--primary-light);
}

.api-params {
  width: 100%;
  border-collapse: collapse;
}

.api-params td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.api-params td:first-child {
  width: 120px;
}

.api-params code {
  font-family: 'Fira Code', monospace;
  background: var(--bg-input);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  color: var(--accent);
}

.api-params .required {
  color: var(--error-light);
  font-size: 0.875rem;
}

.code-block {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  overflow-x: auto;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

.code-block code {
  color: var(--text-primary);
  white-space: pre;
}

.curl-block {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(99, 102, 241, 0.05));
  border-color: rgba(6, 182, 212, 0.2);
}

.curl-block code {
  color: var(--accent);
}

.json-block {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(99, 102, 241, 0.05));
  border-color: rgba(16, 185, 129, 0.2);
}

.json-block code {
  color: var(--success-light);
}

.other-endpoints {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.endpoint-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

.endpoint-item code {
  font-family: 'Fira Code', monospace;
  font-size: 0.875rem;
  color: var(--primary-light);
  background: rgba(99, 102, 241, 0.15);
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
}

.endpoint-item span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .code-block {
    font-size: 0.8rem;
    padding: 1rem;
  }

  .api-endpoint {
    font-size: 0.875rem;
    display: block;
    word-break: break-all;
  }

  .endpoint-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}