/* HydraSmart Component Library */
@import url('design-tokens.css');

/* ========= RESETS AND BASE STYLES ========= */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  font-family: var(--font-family-body);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: var(--line-height-normal);
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

/* ========= LAYOUT UTILITIES ========= */
.container {
  width: min(90%, 1200px);
  margin-inline: auto;
}

.grid {
  display: grid;
}

.flex {
  display: flex;
}

/* ========= HEADER COMPONENT ========= */
.header {
  background-color: var(--color-surface);
  padding: var(--space-4) 0;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid rgba(246, 246, 245, 0.05);
}

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

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.header-logo img {
  width: 32px;
  height: auto;
  border-radius: 0;
}

.header-logo span {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.header-logo .highlight {
  color: var(--color-primary);
}

.header-nav {
  display: flex;
  gap: var(--space-5);
}

.nav-link {
  position: relative;
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

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

.header-menu-toggle {
  display: none;
  font-size: var(--font-size-xl);
  color: var(--color-text-primary);
  cursor: pointer;
}

/* ========= CARD COMPONENT ========= */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  padding: var(--space-5);
  border: 1px solid rgba(246, 246, 245, 0.05);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.card-content {
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-4);
}

/* ========= BUTTON COMPONENTS ========= */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary:hover {
  background-color: var(--color-primary-light);
  box-shadow: 0 4px 12px rgba(45, 169, 249, 0.35);
}

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

.btn-secondary:hover {
  background-color: var(--color-secondary-light);
  box-shadow: 0 4px 12px rgba(27, 144, 222, 0.35);
}

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

.btn-accent:hover {
  background-color: var(--color-accent-light);
  box-shadow: 0 4px 12px rgba(249, 163, 45, 0.35);
}

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

.btn-outline-primary:hover {
  background-color: rgba(45, 169, 249, 0.1);
}

.btn-outline-accent {
  background-color: transparent;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
}

.btn-outline-accent:hover {
  background-color: rgba(249, 163, 45, 0.1);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-md);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-xs);
}

/* ========= TYPOGRAPHY STYLES ========= */
.text-primary {
  color: var(--color-text-primary);
}

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

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

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

h1, .h1 {
  font-size: var(--font-size-5xl);
}

h2, .h2 {
  font-size: var(--font-size-4xl);
}

h3, .h3 {
  font-size: var(--font-size-3xl);
}

h4, .h4 {
  font-size: var(--font-size-2xl);
}

h5, .h5 {
  font-size: var(--font-size-xl);
}

h6, .h6 {
  font-size: var(--font-size-lg);
}

.display-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-loose);
}

.small {
  font-size: var(--font-size-sm);
}

.meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

/* ========= FEATURE CARD ========= */
.feature-card {
  padding: var(--space-6);
  text-align: center;
}

.feature-icon {
  font-size: var(--font-size-4xl);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.feature-title {
  margin-bottom: var(--space-3);
}

.feature-text {
  color: var(--color-text-secondary);
}

/* ========= PRODUCT CARD ========= */
.product-card {
  display: flex;
  flex-direction: column;
}

.product-image {
  height: 300px;
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-price {
  color: var(--color-primary);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-2);
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

/* ========= UTILITY CLASSES ========= */
.highlight {
  color: var(--color-primary);
}

.accent-highlight {
  color: var(--color-accent);
}

.glass-card {
  background-color: rgba(6, 19, 38, 0.6);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(246, 246, 245, 0.05);
}

/* Media Queries for Responsive Design */
@media (max-width: 768px) {
  .header-nav {
    display: none;
  }
  
  .header-menu-toggle {
    display: block;
  }
  
  .header-nav.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
  }
}