/* ==================== BASE STYLES ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

:root {
  --fire-600: #e51b1b;
  --fire-700: #c0392b;
  --ember-500: #f97316;
  --coal-800: #1c1917;
  --coal-900: #0c0a09;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Cairo', sans-serif;
  background-color: var(--coal-900);
  color: #fff;
  overflow-x: hidden;
}

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--coal-900); }
::-webkit-scrollbar-thumb { background: var(--fire-700); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--ember-500); }

/* ==================== NAVBAR ==================== */
#navbar.scrolled {
  background: rgba(12, 10, 9, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 30px rgba(192, 57, 43, 0.15);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(192, 57, 43, 0.15);
}

#navbar .nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  right: 0;
  width: 0;
  height: 2px;
  background: var(--fire-600);
  transition: width 0.3s ease;
}

#navbar .nav-link:hover::after {
  width: 100%;
}

/* Mobile menu states */
.mobile-menu-closed {
  max-height: 0;
}
.mobile-menu-open {
  max-height: 600px;
}

/* ==================== HERO SECTION ==================== */
.hero-bg {
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  transform: scale(1.05);
  animation: heroZoom 8s ease-in-out infinite alternate;
}

.hero-slide.active {
  opacity: 1;
}

@keyframes heroZoom {
  from { transform: scale(1); }
  to   { transform: scale(1.08); }
}

/* Hero entrance animations */
.hero-anim {
  opacity: 0;
  transform: translateY(40px);
}

.hero-anim-1 { animation: heroEntrance 0.8s ease forwards 0.2s; }
.hero-anim-2 { animation: heroEntrance 0.8s ease forwards 0.4s; }
.hero-anim-3 { animation: heroEntrance 0.8s ease forwards 0.6s; }
.hero-anim-4 { animation: heroEntrance 0.8s ease forwards 0.8s; }
.hero-anim-5 { animation: heroEntrance 0.8s ease forwards 1.0s; }

@keyframes heroEntrance {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* about */
.about-pattern {
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c0392b' fill-opacity='0.3'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  opacity: 0.3;
}

/* ==================== FIRE PARTICLES ==================== */
.particle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ember-500);
  animation: particleFloat linear infinite;
  pointer-events: none;
  filter: blur(1px);
}

.particle-1 { left: 15%; bottom: 20%; width: 8px; height: 8px; animation-duration: 6s; animation-delay: 0s; background: #ef4444; }
.particle-2 { left: 30%; bottom: 10%; width: 5px; height: 5px; animation-duration: 8s; animation-delay: 1s; background: #f97316; }
.particle-3 { left: 50%; bottom: 30%; width: 10px; height: 10px; animation-duration: 7s; animation-delay: 2s; background: #fbbf24; }
.particle-4 { left: 70%; bottom: 15%; width: 6px; height: 6px; animation-duration: 9s; animation-delay: 0.5s; background: #ef4444; }
.particle-5 { left: 85%; bottom: 25%; width: 7px; height: 7px; animation-duration: 5s; animation-delay: 1.5s; background: #f97316; }

@keyframes particleFloat {
  0%   { transform: translateY(0) scale(1); opacity: 0.8; }
  50%  { transform: translateY(-120px) scale(1.3); opacity: 0.5; }
  100% { transform: translateY(-250px) scale(0); opacity: 0; }
}

/* ==================== REVEAL ANIMATIONS ==================== */
.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Stagger children reveal */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }
.reveal:nth-child(6) { transition-delay: 0.5s; }

/* ==================== GRID PATTERN ==================== */
.grid-pattern {
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ==================== SERVICES SLIDER ==================== */
.services-slider {
  cursor: grab;
  user-select: none;
}

.services-slider:active {
  cursor: grabbing;
}

/* ==================== HERO DOTS ==================== */
.hero-dot.active {
  width: 2rem;
  background: #ef4444;
}

/* ==================== WRITING MODE ==================== */
.writing-mode-vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* ==================== CUSTOM ANIMATIONS ==================== */
@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 15px rgba(192,57,43,0.4), 0 0 30px rgba(192,57,43,0.2); }
  50%       { box-shadow: 0 0 30px rgba(192,57,43,0.7), 0 0 60px rgba(249,115,22,0.4); }
}

.animate-pulse-glow {
  animation: pulseGlow 2.5s ease-in-out infinite;
}

/* ==================== WHATSAPP FLOAT ==================== */
#whatsapp-float {
  animation: floatUp 3s ease-in-out infinite;
}

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

#whatsapp-float:hover {
  animation: none;
  transform: scale(1.1);
}

/* ==================== GRADIENT TEXT ==================== */
.gradient-text {
  background: linear-gradient(90deg, #ef4444, #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ==================== FORM INPUTS RTL ==================== */
input, textarea, select {
  direction: rtl;
  font-family: 'Cairo', sans-serif;
}

select option {
  background: #1c1917;
  color: white;
}

/* ==================== HOVER SHINE EFFECT ==================== */
.service-card > div::before {
  content: '';
  position: absolute;
  top: 0;
  right: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255,255,255,0.04),
    transparent
  );
  transform: skewX(-20deg);
  transition: right 0.7s ease;
  pointer-events: none;
  z-index: 1;
}

.service-card > div:hover::before {
  right: 150%;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 640px) {
  .hero-anim-2 h1 {
    font-size: 2.5rem;
  }
}

/* ==================== FIRE LINE DIVIDER ==================== */
.fire-divider {
  height: 3px;
  background: linear-gradient(90deg, transparent, #ef4444, #f97316, #ef4444, transparent);
  animation: fireLine 3s ease infinite;
}

@keyframes fireLine {
  0%, 100% { opacity: 0.6; }
  50%       { opacity: 1; }
}

/* ==================== BUTTON RIPPLE ==================== */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
  transform: scale(0);
  transition: transform 0.5s ease;
}

.btn-ripple:active::after {
  transform: scale(2);
}

/* ==================== COUNTER ANIMATION ==================== */
.counter {
  font-variant-numeric: tabular-nums;
}

/* ==================== PAGE LOADER ==================== */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--coal-900);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-flame {
  width: 50px;
  height: 70px;
  position: relative;
  animation: flameAnim 1s ease-in-out infinite alternate;
}

@keyframes flameAnim {
  from { transform: scaleY(1); filter: brightness(1); }
  to   { transform: scaleY(1.1); filter: brightness(1.3); }
}

/* ==================== SCROLL PROGRESS ==================== */
#scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #ef4444, #f97316);
  transform-origin: right;
  transform: scaleX(0);
  z-index: 9999;
  transition: transform 0.1s linear;
}

/* ==================== MENU TOGGLE ANIMATION ==================== */
#menu-toggle.active .menu-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
#menu-toggle.active .menu-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
#menu-toggle.active .menu-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}