/* ===================================================================
   PROGRESS WITH PURPOSE BY MOHAMED HANY - MAIN STYLESHEET
   Production-Quality Front-End Architecture
   =================================================================== */

@import url('variables.css');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-base);
  color: var(--text-primary);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  background-color: var(--bg-base);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

::selection {
  background-color: var(--primary);
  color: #FFFFFF;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

ul, ol {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* ===================================================================
   HEADER & NAVIGATION
   =================================================================== */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8, 12, 21, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.header-scrolled {
  background: rgba(8, 12, 21, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-md);
}

/* Brand Logo Link */
.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.brand-link:hover {
  opacity: 0.9;
}

.brand-logo-svg {
  height: 48px;
  width: auto;
}

/* Desktop Navigation */
.desktop-nav {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

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

.nav-link.active {
  color: var(--text-primary);
  background: rgba(112, 89, 171, 0.15);
  color: var(--primary-light);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

/* Header Action Buttons */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-status-pill {
  display: none;
  align-items: center;
  gap: 6px;
  background: rgba(56, 217, 169, 0.1);
  border: 1px solid rgba(56, 217, 169, 0.25);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--success);
}

@media (min-width: 768px) {
  .header-status-pill {
    display: inline-flex;
  }
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

@media (min-width: 1024px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-toggle:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card);
}

/* Mobile Off-Canvas Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: all var(--transition-normal);
}

.mobile-drawer.open {
  visibility: visible;
  opacity: 1;
}

.mobile-drawer-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 12, 0.85);
  backdrop-filter: blur(12px);
}

.mobile-drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 85%;
  max-width: 360px;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border-card);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.mobile-drawer.open .mobile-drawer-content {
  transform: translateX(0);
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  color: var(--text-primary);
  background: var(--bg-card);
  border-left: 3px solid var(--primary);
}

.mobile-drawer-footer {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

/* ===================================================================
   BUTTON SYSTEM
   =================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

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

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-button);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px rgba(112, 89, 171, 0.6);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-2px);
}

.btn-cyan {
  background: linear-gradient(135deg, var(--cyan-accent) 0%, var(--cyan-dark) 100%);
  color: #080C15;
  font-weight: 800;
  box-shadow: var(--shadow-glow-cyan);
}

.btn-cyan:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

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

.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-card);
  background: rgba(255, 255, 255, 0.04);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

/* ===================================================================
   BADGES, CHIPS & TAGS
   =================================================================== */

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  background: var(--bg-pill);
  border: 1px solid var(--border-highlight);
  color: var(--primary-light);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.badge-tag.badge-cyan {
  background: rgba(78, 210, 201, 0.12);
  border-color: var(--border-cyan);
  color: var(--cyan-accent);
}

.badge-tag.badge-coral {
  background: rgba(239, 168, 136, 0.12);
  border-color: rgba(239, 168, 136, 0.4);
  color: var(--coral-accent);
}

.badge-tag.badge-pill-dark {
  background: #141726;
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
}

.chip-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: var(--space-md);
}

.chip {
  padding: 6px 14px;
  background: #101424;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--text-primary);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.chip:hover {
  border-color: var(--border-highlight);
  background: var(--bg-card);
  color: var(--primary-light);
}

/* ===================================================================
   CARD SYSTEM
   =================================================================== */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.card-interactive {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.card-interactive:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateX(4px);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  line-height: 1.2;
}

.heading-display {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.02em;
}

.heading-section {
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 800;
  font-style: italic;
  letter-spacing: -0.01em;
}

.text-gradient-purple {
  background: linear-gradient(135deg, #B59EED 0%, #7059AB 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-brand {
  background: linear-gradient(135deg, var(--coral-accent) 0%, var(--cyan-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.eyebrow-mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary-light);
}

.lead-text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===================================================================
   SECTIONS
   =================================================================== */

.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-4xl);
    padding-bottom: var(--space-4xl);
  }
}

.section-header {
  margin-bottom: var(--space-2xl);
  max-width: 680px;
}

.section-header.text-center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* Subtle Ambient Glows */
.ambient-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  opacity: 0.15;
  z-index: 0;
}

.glow-purple {
  background: var(--primary);
}

.glow-cyan {
  background: var(--cyan-accent);
}

.glow-coral {
  background: var(--coral-accent);
}

/* ===================================================================
   FOOTER
   =================================================================== */

.site-footer {
  margin-top: auto;
  background: #05080E;
  border-top: 1px solid var(--border-subtle);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-2xl);
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
  }
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: var(--space-md);
  max-width: 340px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--text-primary);
  transform: translateX(3px);
}

.footer-bottom {
  margin-top: var(--space-3xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
  }
}

.version-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  padding: 3px 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xs);
}

/* ===================================================================
   FLOATING MOBILE DOCK (Matching App Navigation)
   =================================================================== */

.mobile-bottom-dock {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-dock);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 8px 12px;
  border-radius: var(--radius-full);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

@media (min-width: 768px) {
  .mobile-bottom-dock {
    display: none;
  }
}

.dock-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 44px;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.dock-item svg {
  width: 22px;
  height: 22px;
}

.dock-item.active {
  background: var(--primary);
  color: #FFFFFF;
  width: 72px;
}

/* ===================================================================
   SCROLL REVEALS & ANIMATIONS
   =================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}