/*
 * Lusk.cloud Landing Page - Main Stylesheet
 * A product of Lusk Technologies, Inc.
 * 
 * Requirements: 7.1 (sky/cloud color palette), 7.3 (modern, readable fonts)
 */

/* ========================================
   Google Fonts Import (backup if not in HTML)
   Requirement 7.3: Modern, readable fonts
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@500;600;700&display=swap');

/* Import utilities */
@import url('utilities/variables.css');
@import url('utilities/animations.css');
@import url('utilities/responsive.css');

/* Import components */
@import url('components/navigation.css');
@import url('components/hero.css');
@import url('components/services.css');
@import url('components/about.css');
@import url('components/contact.css');
@import url('components/footer.css');

/* ========================================
   CSS Reset and Base Styles
   ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family-base);
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ========================================
   Typography
   Requirement 7.3: Modern, readable fonts consistent with brand
   Note: Responsive font sizes are defined in utilities/responsive.css
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-heading);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-weight: var(--font-weight-bold);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-md);
}

p {
  margin-bottom: 1rem;
}

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

/* Lead text for introductions */
.lead {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Small text */
small,
.text-small {
  font-size: var(--font-size-sm);
}

/* Strong and emphasis */
strong,
b {
  font-weight: var(--font-weight-semibold);
}

em,
i {
  font-style: italic;
}

/* ========================================
   Links
   ======================================== */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--animation-duration) var(--animation-easing);
}

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

/* ========================================
   Focus styles for accessibility
   Requirement 8.3: Keyboard navigation support
   ======================================== */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus,
[tabindex]:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Remove focus outline for mouse users, keep for keyboard */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
textarea:focus:not(:focus-visible),
select:focus:not(:focus-visible) {
  outline: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ========================================
   Images
   Requirement 6.4: Scale images without distortion
   ======================================== */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Ensure images maintain aspect ratio */
img,
video {
  object-fit: cover;
}

figure {
  margin: 0;
}

figcaption {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-top: var(--spacing-sm);
}

/* ========================================
   Buttons
   ======================================== */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Primary button style */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-family-base);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  border-radius: var(--border-radius-md);
  transition: all var(--animation-duration) var(--animation-easing);
  cursor: pointer;
}

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

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

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

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

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

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

/* Button sizes */
.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

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

/* ========================================
   Lists
   ======================================== */
ul,
ol {
  list-style: none;
}

/* Styled lists (when needed) */
.list-styled {
  list-style: disc;
  padding-left: var(--spacing-lg);
}

.list-styled li {
  margin-bottom: var(--spacing-sm);
}

/* ========================================
   Form Elements
   ======================================== */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

input[type='text'],
input[type='email'],
input[type='tel'],
input[type='url'],
input[type='password'],
input[type='search'],
textarea,
select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-white);
  color: var(--color-text);
  transition:
    border-color var(--animation-duration) var(--animation-easing),
    box-shadow var(--animation-duration) var(--animation-easing);
}

input[type='text']:focus,
input[type='email']:focus,
input[type='tel']:focus,
input[type='url']:focus,
input[type='password']:focus,
input[type='search']:focus,
textarea:focus,
select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* Placeholder styling */
::placeholder {
  color: var(--color-text-light);
  opacity: 1;
}

/* Textarea specific */
textarea {
  resize: vertical;
  min-height: 120px;
}

/* Labels */
label {
  display: block;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

/* Form validation states */
.input-error {
  border-color: var(--color-error);
}

.input-error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.success-message {
  color: var(--color-success);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

/* ========================================
   Layout - Container
   Note: Container responsive styles are defined in utilities/responsive.css
   ======================================== */

/* ========================================
   Section spacing
   Note: Section responsive padding is defined in utilities/responsive.css
   ======================================== */

/* Section headings */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   Utility classes
   ======================================== */

/* Visually hidden (for screen readers) */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Text alignment */
.text-center {
  text-align: center;
}

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

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

/* Text colors */
.text-primary {
  color: var(--color-primary);
}

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

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

/* Background colors */
.bg-primary {
  background-color: var(--color-primary);
}

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

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

/* Flexbox utilities */
.flex {
  display: flex;
}

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

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

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

/* Grid utilities */
.grid {
  display: grid;
}

/* Spacing utilities */
.mt-0 {
  margin-top: 0;
}
.mt-1 {
  margin-top: var(--spacing-sm);
}
.mt-2 {
  margin-top: var(--spacing-md);
}
.mt-3 {
  margin-top: var(--spacing-lg);
}
.mt-4 {
  margin-top: var(--spacing-xl);
}

.mb-0 {
  margin-bottom: 0;
}
.mb-1 {
  margin-bottom: var(--spacing-sm);
}
.mb-2 {
  margin-bottom: var(--spacing-md);
}
.mb-3 {
  margin-bottom: var(--spacing-lg);
}
.mb-4 {
  margin-bottom: var(--spacing-xl);
}

/* Card base style */
.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-lg);
  transition:
    transform var(--animation-duration) var(--animation-easing),
    box-shadow var(--animation-duration) var(--animation-easing);
}

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