/* ========================
   CSS Variables & Base Styles
======================== */
:root {
  /* Colors */
  --color-primary: #00AEEF;
  --color-primary-dark: #0090c9;
  --color-secondary: #00FFB2;
  --color-accent: #00b580;
  --color-dark: #06194b;
  --color-darker: #050e29;
  --color-darkest: #0a0a0a;
  --color-light: #f8f9fa;
  --color-muted: #cccccc;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray: #555555;
  --color-card-bg: #a6eff21a;
  
  /* Typography */
  --font-primary: 'Poppins', 'Cairo', sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  
  /* Borders */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-width: 1px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
  --shadow-xl: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
  --transition-slow: 0.7s ease;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 80px;
  --header-height-mobile: 60px;
  --z-fixed: 100;
}

/* ========================
   Global Styles
======================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-light);
  background-color: var(--color-darkest);
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-secondary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  font-size: var(--font-size-3xl);
  text-align: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 3px;
  background-color: var(--color-primary);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  color: var(--color-muted);
  font-weight: var(--font-weight-normal);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8em 1.8em;
  border-radius: var(--border-radius-md);
  font-weight: var(--font-weight-medium);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ========================
   Header & Navigation
======================== */
header {
  background-color: rgba(0, 0, 0, 0.9);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-fixed);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: height var(--transition-fast);
}

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

header.scrolled {
  height: var(--header-height-mobile);
  background-color: rgba(0, 0, 0, 0.95);
}

.logo img {
  height: 45px;
  transition: height var(--transition-fast);
}

header.scrolled .logo img {
  height: 35px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  outline: none;
  position: relative;
  z-index: 1001;
}

.hamburger {
  display: block;
  position: relative;
  width: 30px;
  height: 2px;
  background-color: var(--color-white);
  transition: background var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 2px;
  background-color: var(--color-white);
  transition: transform var(--transition-fast);
}

.hamburger::before {
  transform: translateY(-8px);
}

.hamburger::after {
  transform: translateY(8px);
}

.nav-toggle.active .hamburger {
  background-color: transparent;
}

.nav-toggle.active .hamburger::before {
  transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
  transform: rotate(-45deg);
}

.navigation {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
}

.nav-link {
  color: var(--color-white);
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-md) var(--spacing-lg);
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 50%;
}

.cv-link {
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

.cv-link:hover {
  color: var(--color-white);
}

/* ========================
   About Page Styles
======================== */
.about-hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--spacing-3xl));
  background: linear-gradient(135deg, var(--color-darker), var(--color-darkest));
  min-height: 40vh;
  display: flex;
  align-items: center;
  text-align: center;
}

.about-hero-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) 0;
}

.profile-image-container {
  margin: 0 auto var(--spacing-xl);
  width: 400px;
  height: 400px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--color-primary);
  box-shadow: var(--shadow-lg);
}

@media  (max-width: 1024px) {
  .profile-image-container {
  width: 300px;
  height: 300px;

}}
@media  (max-width: 720px) {
  .profile-image-container {
  width: 250px;
  height: 250px;
  }}
  @media (max-width: 300px) {
  .profile-image-container {
  width: 180px;
  height: 180px;
  }}


.profile-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.profile-image:hover {
  transform: scale(1.05);
}

.hero-profile-image {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--color-primary);
  margin-right: var(--spacing-md);
  box-shadow: var(--shadow-md);
}

.hero-profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.about-hero-title span {
  color: var(--color-primary);
  display: inline-block;
}

.about-subtitle {
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  margin-bottom: var(--spacing-lg);
  color: var(--color-secondary);
}

.about-text {
  font-size: clamp(1rem, 2vw, 1.1rem);
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  color: var(--color-light);
  text-align: left;
}

.about-text p {
  margin-bottom: var(--spacing-lg);
}

.about-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--color-darkest), var(--color-dark), var(--color-darkest));
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.about-card {
  background-color: var(--color-card-bg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-medium);
}

.about-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.about-card:hover::before {
  transform: scaleX(1);
}

.about-card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.about-card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
}

.about-card-text {
  color: var(--color-light);
  flex-grow: 1;
}

.about-card ul {
  list-style: disc;
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.about-card li {
  margin-bottom: var(--spacing-xs);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.skill-tag {
  background-color: rgba(0, 174, 239, 0.15);
  color: var(--color-primary);
  padding: 0.4em 1em;
  border-radius: 100px;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background-color: rgba(0, 174, 239, 0.3);
  transform: translateY(-2px);
}

.future-goals-list {
  margin-top: var(--spacing-md);
}

.future-goals-list li {
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: flex-start;
}

.future-goals-list li i {
  color: var(--color-secondary);
  margin-right: var(--spacing-sm);
  margin-top: 5px;
}

.why-choose-section {
  background: linear-gradient(135deg, var(--color-darker), var(--color-darkest));
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.why-choose-text {
  max-width: 800px;
  margin: 0 auto;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  line-height: 1.7;
}

/* Footer styles */
.footer {
  background-color: var(--color-darker);
  padding-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-logo img {
  height: 45px;
  margin-bottom: var(--spacing-md);
}

.footer-logo p {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.footer h3 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}

.footer-links ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-links ul li a {
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
  color: var(--color-primary);
}

.footer-social .social-icons {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social .social-icons a {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.1);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer-social .social-icons a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-md) 0;
  text-align: center;
}

.footer-bottom p {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

/* Animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Media Queries */
@media screen and (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  
  .navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: right var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  
  .navigation.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    width: 100%;
  }
  
  .nav-link {
    display: block;
    padding: var(--spacing-lg);
    width: 100%;
    text-align: center;
  }
  
  .about-cards {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-logo img {
    margin: 0 auto var(--spacing-md);
  }
  
  .footer-social .social-icons {
    justify-content: center;
  }
}

@media screen and (max-width: 576px) {
  :root {
    --header-height: 60px;
  }
  
  .about-hero {
    padding-top: calc(var(--header-height) + var(--spacing-xl));
  }
  
  .about-card {
    padding: var(--spacing-lg);
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .about-text {
    padding: 0 var(--spacing-sm);
  }
  
  .skill-list {
    justify-content: center;
  }
}

/* ========================
   FAQ Section Styles
======================== */
.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--border-radius-lg);
  background-color: rgba(0, 0, 0, 0.2);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.faq-toggle-all {
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-darker));
  padding: var(--spacing-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-white);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-lg);
  transition: all var(--transition-fast);
}

.faq-toggle-all:hover {
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
}

.faq-toggle-all i {
  transition: transform var(--transition-fast);
}

.faq-toggle-all.active i {
  transform: rotate(-180deg);
}

.faq-container {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-medium);
}

.faq-container.active {
  max-height: 2000px; /* Large enough to contain all FAQ items */
  padding: var(--spacing-lg);
}

.faq-item {
  background-color: var(--color-card-bg);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.faq-item:last-child {
  margin-bottom: 0;
}

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

.faq-question {
  padding: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.8), var(--color-card-bg));
}

.faq-question h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-white);
  margin: 0;
}

.faq-toggle {
  color: var(--color-primary);
  font-size: 1.2em;
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-medium);
  color: var(--color-light);
}

.faq-item.active .faq-answer {
  padding: var(--spacing-md) var(--spacing-lg);
  max-height: 500px;
}

/* RTL Support */
html[dir="rtl"] {
  .nav-link::after {
    left: auto;
    right: 50%;
    transform: translateX(50%);
  }
  
  .section-title::after {
    left: auto;
    right: 50%;
    transform: translateX(50%);
  }
  
  .about-text {
    text-align: right;
  }
  
  .future-goals-list li i {
    margin-right: 0;
    margin-left: var(--spacing-sm);
  }
  
  .about-card ul {
    margin-left: 0;
    margin-right: var(--spacing-lg);
  }
}