/* ========================================================
   DESIGN SYSTEM - etichub style
   Minimalist luxury, coral/rose accent, cream backgrounds
   ======================================================== */

:root {
  /* Primary Colors */
  --color-primary: #E8847D;
  --color-primary-dark: #D97468;
  --color-primary-light: #F0E8E6;

  /* Neutrals */
  --color-bg: #F5F3F0;
  --color-bg-light: #FAFAF8;
  --color-text: #1A1A1A;
  --color-text-light: #9A9A9A;
  --color-text-lighter: #C0C0C0;
  --color-border: #E5E5E5;
  --color-border-light: #F0EDEA;

  /* Status Colors */
  --color-success: #10B981;
  --color-error: #EF4444;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;

  /* Typography */
  --font-primary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.5rem;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.6;
  --leading-loose: 1.8;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1rem;
  --space-xl: 1.5rem;
  --space-2xl: 2rem;
  --space-3xl: 3rem;
  --space-4xl: 4rem;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* ========================================================
   BASE STYLES
   ======================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================================
   TYPOGRAPHY
   ======================================================== */

h1, h2 {
  font-family: var(--font-primary);
  font-weight: 300;
  line-height: var(--leading-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-2xl);
}

h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-xl);
}

h3, h4 {
  font-family: var(--font-primary);
  font-weight: 400;
  line-height: var(--leading-normal);
  color: var(--color-text);
}

h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-lg);
}

h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-lg);
}

h5, h6 {
  font-family: var(--font-primary);
  font-weight: 500;
  color: var(--color-text);
}

h5 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
}

h6 {
  font-size: var(--text-base);
  margin-bottom: var(--space-md);
}

p {
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

p:last-child {
  margin-bottom: 0;
}

/* ========================================================
   BUTTONS
   ======================================================== */

.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: var(--text-base);
  border: 2px solid;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  text-align: center;
  user-select: none;
  vertical-align: middle;
}

.btn:focus {
  outline: none;
}

/* Primary Button */
.btn-primary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

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

.btn-primary:focus {
  box-shadow: 0 0 0 3px rgba(232, 132, 125, 0.1);
}

/* Secondary Button */
.btn-secondary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

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

.btn-secondary:focus {
  box-shadow: 0 0 0 3px rgba(232, 132, 125, 0.1);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Success Button */
.btn-success {
  background: transparent;
  color: var(--color-success);
  border-color: var(--color-success);
}

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

/* Danger Button */
.btn-danger {
  background: transparent;
  color: var(--color-error);
  border-color: var(--color-error);
}

.btn-danger:hover {
  background: var(--color-error);
  color: white;
}

/* Button Sizes */
.btn-sm {
  padding: 8px 24px;
  font-size: var(--text-sm);
}

.btn-lg {
  padding: 16px 40px;
  font-size: var(--text-lg);
}

/* Button States */
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================================
   CARDS
   ======================================================== */

.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-header {
  border-bottom: 2px solid var(--color-bg);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.card-title {
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-text);
  margin: 0 0 var(--space-sm) 0;
}

.card-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-light);
  margin: 0;
}

.card-body {
  padding: var(--space-lg) 0;
}

.card-footer {
  border-top: 1px solid var(--color-bg);
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
}

/* ========================================================
   FORMS
   ======================================================== */

.form-group {
  margin-bottom: var(--space-2xl);
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.form-label.required::after {
  content: ' *';
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--text-base);
  color: var(--color-text);
  background: white;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(232, 132, 125, 0.1);
}

.form-control::placeholder {
  color: var(--color-text-light);
}

.form-control:disabled {
  background: var(--color-bg);
  color: var(--color-text-light);
  cursor: not-allowed;
}

/* Select */
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239A9A9A' stroke-width='2'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
}

/* Textarea */
textarea.form-control {
  min-height: 120px;
  resize: vertical;
  font-family: var(--font-secondary);
}

/* Form Validation */
.form-control.is-invalid {
  border-color: var(--color-error);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-control.is-valid {
  border-color: var(--color-success);
}

.form-control.is-valid:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-feedback {
  font-size: var(--text-sm);
  margin-top: var(--space-md);
}

.form-feedback.invalid {
  color: var(--color-error);
}

.form-feedback.valid {
  color: var(--color-success);
}

.form-check {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.form-check-input {
  width: 20px;
  height: 20px;
  margin-right: var(--space-lg);
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-check-label {
  cursor: pointer;
  margin-bottom: 0;
}

/* ========================================================
   ALERTS
   ======================================================== */

.alert {
  padding: var(--space-lg) var(--space-xl);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--space-xl);
  font-family: var(--font-primary);
  font-size: var(--text-base);
}

.alert-dismissible {
  position: relative;
  padding-right: 32px;
}

.btn-close {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--text-lg);
  color: inherit;
  opacity: 0.7;
  transition: opacity var(--transition-base);
}

.btn-close:hover {
  opacity: 1;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border-left-color: var(--color-error);
  color: var(--color-error);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  border-left-color: var(--color-info);
  color: var(--color-info);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

/* ========================================================
   PROGRESS
   ======================================================== */

.progress {
  width: 100%;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
  margin: var(--space-xl) 0;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  width: 0%;
  transition: width var(--transition-base);
}

/* ========================================================
   UTILITIES
   ======================================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-lg {
  max-width: 1400px;
}

.container-sm {
  max-width: 900px;
}

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

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

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

.text-muted {
  color: var(--color-text-light);
}

.text-primary {
  color: var(--color-primary);
}

.text-success {
  color: var(--color-success);
}

.text-error {
  color: var(--color-error);
}

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.p-1 { padding: var(--space-sm); }
.p-2 { padding: var(--space-md); }
.p-3 { padding: var(--space-lg); }
.p-4 { padding: var(--space-xl); }
.p-5 { padding: var(--space-2xl); }

.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }
.gap-4 { gap: var(--space-xl); }

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

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

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.w-full {
  width: 100%;
}

.h-full {
  height: 100%;
}

.rounded {
  border-radius: var(--radius-md);
}

.rounded-lg {
  border-radius: var(--radius-lg);
}

.rounded-full {
  border-radius: var(--radius-full);
}

.shadow {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.hidden {
  display: none !important;
}

/* ========================================================
   RESPONSIVE
   ======================================================== */

@media (max-width: 768px) {
  h1 {
    font-size: var(--text-3xl);
  }

  h2 {
    font-size: var(--text-2xl);
  }

  .container {
    padding: 0 var(--space-lg);
  }
}