/* ==========================================================================
   SHAMS-AL-QASWA — COMPONENT LIBRARY
   Reusable UI patterns built on top of tokens.css
   ========================================================================== */

/* ==========================================================================
   1. BASE / RESET
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: var(--text-primary);
  background-color: var(--surface-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body[dir="rtl"] { font-family: var(--font-arabic); }

img, picture, video, svg { max-width: 100%; display: block; }

a { color: var(--text-link); text-decoration: none; transition: color var(--duration-fast) var(--ease-out); }
a:hover { color: var(--color-primary-700); }

button { font-family: inherit; cursor: pointer; }

/* ==========================================================================
   2. TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-sans);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
}

.display { font-size: var(--fs-display); font-weight: var(--fw-extrabold); letter-spacing: var(--ls-tighter); line-height: 1.05; }
h1, .h1 { font-size: var(--fs-h1); }
h2, .h2 { font-size: var(--fs-h2); }
h3, .h3 { font-size: var(--fs-h3); font-weight: var(--fw-semibold); }
h4, .h4 { font-size: var(--fs-h4); font-weight: var(--fw-semibold); }
h5, .h5 { font-size: var(--fs-h5); font-weight: var(--fw-semibold); }
h6, .h6 { font-size: var(--fs-h6); font-weight: var(--fw-semibold); }

p { margin: 0 0 var(--space-4); line-height: var(--lh-relaxed); }

.text-body-lg { font-size: var(--fs-body-lg); line-height: var(--lh-relaxed); }
.text-body    { font-size: var(--fs-body); }
.text-body-sm { font-size: var(--fs-body-sm); }
.text-caption { font-size: var(--fs-caption); color: var(--text-muted); }
.text-overline {
  font-size: var(--fs-overline);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-widest);
  text-transform: uppercase;
  color: var(--text-brand);
}

.text-muted   { color: var(--text-muted); }
.text-brand   { color: var(--text-brand); }
.text-inverse { color: var(--text-inverse); }
.text-center  { text-align: center; }

/* Responsive headings */
@media (max-width: 768px) {
  .display { font-size: 3rem; }
  h1, .h1 { font-size: 2.25rem; }
  h2, .h2 { font-size: 1.875rem; }
  h3, .h3 { font-size: 1.5rem; }
  h4, .h4 { font-size: 1.25rem; }
}

/* ==========================================================================
   3. LAYOUT
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container-sm  { max-width: var(--container-sm); }
.container-md  { max-width: var(--container-md); }
.container-lg  { max-width: var(--container-lg); }
.container-2xl { max-width: var(--container-2xl); }

.section { padding-block: var(--section-py-md); }
.section-sm { padding-block: var(--section-py-sm); }
.section-lg { padding-block: var(--section-py-lg); }

.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.stack > * + * { margin-top: var(--space-4); }
.stack-sm > * + * { margin-top: var(--space-2); }
.stack-lg > * + * { margin-top: var(--space-6); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* ==========================================================================
   4. BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-6);
  height: 48px;
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
  user-select: none;
}

.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Sizes */
.btn-sm { height: 36px; padding: 0 var(--space-4); font-size: var(--fs-body-sm); }
.btn-md { height: 44px; padding: 0 var(--space-5); }
.btn-lg { height: 56px; padding: 0 var(--space-8); font-size: var(--fs-body-lg); }

/* Variants */
.btn-primary {
  background-color: var(--color-primary-500);
  color: var(--color-white);
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover {
  background-color: var(--color-primary-600);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(30, 133, 130, 0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background-color: var(--color-secondary-700);
  color: var(--color-white);
}
.btn-secondary:hover { background-color: var(--color-secondary-800); transform: translateY(-2px); }

.btn-accent {
  background-color: var(--color-accent-400);
  color: var(--color-secondary-800);
  box-shadow: var(--shadow-accent);
}
.btn-accent:hover { background-color: var(--color-accent-500); color: var(--color-white); transform: translateY(-2px); }

.btn-outline {
  background-color: transparent;
  color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}
.btn-outline:hover {
  background-color: var(--color-primary-500);
  color: var(--color-white);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-primary);
}
.btn-ghost:hover { background-color: var(--surface-muted); }

.btn-whatsapp {
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  box-shadow: var(--shadow-whatsapp);
}
.btn-whatsapp:hover { background-color: var(--color-whatsapp-hover); transform: translateY(-2px); }

/* Icon-only button */
.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
}
.btn-icon.btn-sm { width: 36px; height: 36px; }
.btn-icon.btn-lg { width: 56px; height: 56px; }

/* Floating WhatsApp button */
.btn-float-whatsapp {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background-color: var(--color-whatsapp);
  color: var(--color-white);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-whatsapp);
  z-index: var(--z-floating);
  transition: var(--transition-base);
  animation: pulse-whatsapp 2.4s ease-in-out infinite;
}
.btn-float-whatsapp:hover { transform: scale(1.08); color: var(--color-white); }

@keyframes pulse-whatsapp {
  0%, 100% { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35), 0 0 0 0 rgba(37, 211, 102, 0.4); }
  50%      { box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35), 0 0 0 16px rgba(37, 211, 102, 0); }
}

/* ==========================================================================
   5. CARDS
   ========================================================================== */

.card {
  background-color: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: var(--transition-base);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-elevated { border: none; box-shadow: var(--shadow-md); }
.card-elevated:hover { box-shadow: var(--shadow-xl); }

.card-feature {
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-primary-50) 100%);
  border: 1px solid var(--color-primary-100);
}

/* Service card with icon */
.card-service { text-align: left; }
.card-service .icon-container {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl);
  background: var(--gradient-water);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-accent);
}
.card-service h4 { margin-bottom: var(--space-2); }
.card-service p { color: var(--text-secondary); margin-bottom: 0; }

/* Testimonial card */
.card-testimonial {
  position: relative;
  background-color: var(--color-white);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
}
.card-testimonial::before {
  content: """;
  position: absolute;
  top: var(--space-4);
  right: var(--space-6);
  font-family: Georgia, serif;
  font-size: 5rem;
  line-height: 1;
  color: var(--color-primary-100);
  font-weight: 700;
}
.card-testimonial blockquote {
  margin: 0 0 var(--space-6);
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
  color: var(--text-secondary);
  font-style: italic;
}
.card-testimonial .author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.card-testimonial .avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: var(--fw-semibold);
}
.card-testimonial .author-info strong { display: block; color: var(--text-primary); }
.card-testimonial .author-info span { font-size: var(--fs-body-sm); color: var(--text-muted); }

/* Industry/Area card */
.card-tile {
  text-align: center;
  padding: var(--space-6);
}
.card-tile .icon-container {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-50);
  color: var(--color-primary-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   6. FORM ELEMENTS
   ========================================================================== */

.form-group { margin-bottom: var(--space-5); }

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
}

.form-label .required { color: var(--color-error); margin-left: 2px; }

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0 var(--space-4);
  height: 48px;
  background-color: var(--color-white);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-lg);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.form-textarea {
  height: auto;
  min-height: 120px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
  line-height: var(--lh-relaxed);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-muted); }

.form-input:hover,
.form-textarea:hover,
.form-select:hover { border-color: var(--border-strong); }

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: var(--focus-ring);
}

.form-input.error,
.form-textarea.error { border-color: var(--color-error); }

.form-helper {
  margin-top: var(--space-2);
  font-size: var(--fs-body-sm);
  color: var(--text-muted);
}
.form-error {
  margin-top: var(--space-2);
  font-size: var(--fs-body-sm);
  color: var(--color-error);
}

/* Checkbox / Radio */
.form-check {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--fs-body-sm);
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary-500);
  cursor: pointer;
}

/* ==========================================================================
   7. NAVIGATION
   ========================================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--fw-bold);
  font-size: var(--fs-h6);
  color: var(--text-primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.nav-link:hover, .nav-link.active {
  color: var(--text-brand);
  background-color: var(--color-primary-50);
}

@media (max-width: 1024px) {
  .nav-menu { display: none; }
}

/* ==========================================================================
   8. BADGES, TAGS, DIVIDERS
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
  border-radius: var(--radius-full);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
}
.badge-accent { background-color: var(--color-accent-50); color: var(--color-accent-800); }
.badge-success { background-color: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background-color: var(--color-warning-bg); color: #b45309; }

.divider { height: 1px; background-color: var(--border-subtle); border: none; margin-block: var(--space-8); }

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background-color: var(--color-primary-50);
  color: var(--color-primary-700);
  border-radius: var(--radius-full);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.section-eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-400);
}

/* ==========================================================================
   9. ICON SYSTEM
   ========================================================================== */

.icon { width: 24px; height: 24px; flex-shrink: 0; }
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 32px; height: 32px; }
.icon-xl { width: 48px; height: 48px; }

/* ==========================================================================
   10. ANIMATIONS — utility classes
   ========================================================================== */

@keyframes fade-in     { from { opacity: 0; } to { opacity: 1; } }
@keyframes slide-up    { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slide-down  { from { opacity: 0; transform: translateY(-24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes scale-in    { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
@keyframes float       { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

.animate-fade-in     { animation: fade-in var(--duration-slow) var(--ease-out) both; }
.animate-slide-up    { animation: slide-up var(--duration-slow) var(--ease-out) both; }
.animate-slide-down  { animation: slide-down var(--duration-slow) var(--ease-out) both; }
.animate-scale-in    { animation: scale-in var(--duration-slow) var(--ease-out) both; }
.animate-float       { animation: float 3s ease-in-out infinite; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ==========================================================================
   11. RTL SUPPORT (Arabic)
   ========================================================================== */

[dir="rtl"] {
  text-align: right;
}
[dir="rtl"] .btn-float-whatsapp { right: auto; left: var(--space-6); }
[dir="rtl"] .card-testimonial::before { right: auto; left: var(--space-6); }
[dir="rtl"] .form-label .required { margin-left: 0; margin-right: 2px; }

/* ==========================================================================
   12. UTILITY
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.bg-brand   { background-color: var(--color-primary-500); color: var(--color-white); }
.bg-deep    { background-color: var(--color-secondary-700); color: var(--color-white); }
.bg-subtle  { background-color: var(--surface-subtle); }
.bg-gradient-brand { background: var(--gradient-brand); color: var(--color-white); }
.bg-gradient-water { background: var(--gradient-water); color: var(--color-white); }