/* ========================================
   Portfolio App - Base Element Styles
   ======================================== */

/* === RESET & BASE === */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  line-height: 1.5;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-md);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-secondary);
}

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

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

/* === CARDS === */
.card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

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

.card-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-border-light);
  font-weight: var(--font-weight-semibold);
  background: var(--color-bg-tertiary);
}

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

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

/* === PROJECT CARDS === */
.project-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

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

.project-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--color-bg-tertiary);
}

.project-card-body {
  padding: var(--space-lg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.project-card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  flex: 1;
  margin-bottom: var(--space-md);
}

.project-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.project-card-links {
  display: flex;
  gap: var(--space-sm);
  margin-top: auto;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

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

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-inverse);
  box-shadow: 0 4px 12px rgba(91, 108, 255, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(91, 108, 255, 0.4);
}

/* Secondary Button */
.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-border);
}

/* Outline Buttons */
.btn-outline-primary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline-primary:hover:not(:disabled) {
  background: var(--color-primary-bg);
}

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

.btn-outline-secondary:hover:not(:disabled) {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-md);
  border-radius: var(--radius-lg);
}

/* Icon Button */
.btn-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tertiary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  padding: 0;
}

.btn-icon:hover {
  background: var(--color-border);
  color: var(--color-text-primary);
}

.btn-icon:active {
  transform: scale(0.95);
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.badge-accent {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: #8B6914;
}

[data-theme="dark"] .badge-warning {
  color: var(--color-warning);
}

.badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.badge-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}

/* === SPINNER === */
.spinner-border {
  width: 2rem;
  height: 2rem;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* === UTILITIES === */
.text-primary { color: var(--color-primary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-muted { color: var(--color-text-muted) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }

.bg-primary { background: var(--color-primary-bg) !important; }

.fw-medium { font-weight: var(--font-weight-medium); }
.fw-semibold { font-weight: var(--font-weight-semibold); }
.fw-bold { font-weight: var(--font-weight-bold); }

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

/* Hide scrollbar but keep functionality */
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.no-scrollbar::-webkit-scrollbar {
  display: none;
}

/* === DARK MODE OVERRIDES === */
[data-theme="dark"] .card {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-light);
}

[data-theme="dark"] .card-header {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-bottom-color: var(--color-border-light);
}

[data-theme="dark"] .card-footer {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-top-color: var(--color-border-light);
}