/* Variables */
:root {
    --primary-color: #2563eb;
    --secondary-color: #3b82f6;
    --bg-light: #f0f0f0;
    --bg-section: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --nav-bg: rgba(255, 255, 255, 0.9);
    --card-bg: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s ease;
}

/* Dark Mode Variables */
.dark-mode {
    --bg-light: #0f172a;
    --bg-section: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --nav-bg: rgba(15, 23, 42, 0.9);
    --card-bg: #1e293b;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cairo', 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-light);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 80px 0;
}

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

h1, h2, h3 {
    margin-bottom: 1rem;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn.primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

[dir="ltr"] .btn.secondary { margin-left: 1rem; }
[dir="rtl"] .btn.secondary { margin-right: 1rem; }

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

.btn-icon {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-main);
    cursor: pointer;
    margin-left: 1rem;
    transition: var(--transition);
}

#theme-toggle{
    margin-inline: 20px;
}

.btn-icon:hover {
    color: var(--primary-color);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
}

.logo span {
    color: var(--text-main);
}

.nav-links {
    display: flex;
}

.nav-links li {
    margin: 0 1.5rem;
}

.nav-links a {
    font-weight: 600;
    color: var(--text-main);
}

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

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

/*  Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: center;
}

.hero-btns #english{
    margin: 10px;
}

.hero-btns #arabic{
    margin: 10px;
}

.hero-content h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
}

.hero-content h2 {
    font-size: 1.8rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-img .img-box {
    width: 400px;
    height: 400px;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    background: var(--primary-color);
    overflow: hidden;
    margin: 0 auto;
    animation: morph 8s ease-in-out infinite;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

@keyframes morph {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    50% { border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%; }
    100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
}

.underline {
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 0 auto;
    border-radius: 2px;
}

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.skill-card:hover {
    transform: translateY(-10px);
}

.skill-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
}

.project-img {
    height: 250px;
    overflow: hidden;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-card:hover .project-img img {
    transform: scale(1.1);
}
.gallery-modal {
  display: none;
  position: fixed;
  z-index: 999;
  padding-top: 300px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.9);
  text-align: center;
}

.gallery-image {
  max-width: 80%;
  max-height: 80%;
  border-radius: 10px;
}

.close {
  position: absolute;
  right: 35px;
  font-size: 40px;
  color: white;
  cursor: pointer;
  z-index: 10000;
}

.prev, .next {
  position: absolute;
  top: 50%;
  font-size: 30px;
  color: white;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 10px;
}

.prev { right: 20px; }
.next { left: 20px; }

.project-info {
    padding: 1.5rem;
}

.project-info p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.btn-link {
    color: var(--primary-color);
    font-weight: 600;
}

/* Certs List */
.certs-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.cert-item {
    display: flex;
    align-items: center;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.cert-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

[dir="ltr"] .cert-item i { margin-right: 1.5rem; }
[dir="rtl"] .cert-item i { margin-left: 1.5rem; }

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.contact-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #ddd;
    background: var(--card-bg);
    color: var(--text-main);
    font-family: inherit;
}

.dark-mode .contact-form input, .dark-mode .contact-form textarea {
    border-color: #334155;
}

/* Footer */
footer {
    padding: 3rem 0;
    background: var(--bg-section);
    text-align: center;
}

.social-links {
    margin-top: 1.5rem;
}

.social-links a {
    font-size: 1.5rem;
    margin: 0 1rem;
    color: var(--text-muted);
}

.social-links a:hover {
    color: var(--primary-color);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-main);
    margin: 5px 0;
    transition: var(--transition);
}

/* Responsive */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content p {
        margin: 0 auto 2rem;
    }
    .hero-img {
        order: -1;
    }
    .hero-img .img-box {
        width: 300px;
        height: 300px;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-light);
        flex-direction: column;
        align-items: center;
        padding-top: 2rem;
        transition: var(--transition);
    }
    .nav-links.active {
        left: 0;
    }
    .nav-links li {
        margin: 1.5rem 0;
    }
    .hamburger {
        display: block;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

 /* Floating Button */
    .whatsapp-container{
      position:fixed;
      bottom:30px;
      left:30px;
      z-index:999;
    }

    .whatsapp-btn{
      width:70px;
      height:70px;
      border-radius:50%;
      border:none;
      cursor:pointer;
      background:linear-gradient(135deg,#25d366,#128c7e);
      color:white;
      font-size:34px;

      display:flex;
      align-items:center;
      justify-content:center;

      box-shadow:
        0 10px 25px rgba(37,211,102,.4),
        0 0 0 rgba(37,211,102,.7);

      position:relative;
      overflow:hidden;

      transition:
        transform .3s ease,
        box-shadow .3s ease;
      
      animation:pulse 2s infinite;
    }

    .whatsapp-btn:hover{
      transform:translateY(-6px) scale(1.08);
      box-shadow:
        0 15px 35px rgba(37,211,102,.6);
    }

    .whatsapp-btn::before{
      content:'';
      position:absolute;
      width:100%;
      height:100%;
      background:rgba(255,255,255,.15);
      top:-100%;
      left:-100%;
      transform:rotate(45deg);
      transition:.6s;
    }

    .whatsapp-btn:hover::before{
      top:120%;
      left:120%;
    }

    /* Tooltip */
    .tooltip{
      position:absolute;
      left:85px;
      top:50%;
      transform:translateY(-50%);
      background:white;
      color:#111;
      padding:12px 18px;
      border-radius:14px;
      font-size:14px;
      font-weight:bold;
      white-space:nowrap;

      opacity:0;
      visibility:hidden;

      transition:.3s ease;
      box-shadow:0 8px 20px rgba(0,0,0,.15);
    }

    .tooltip::after{
      content:'';
      position:absolute;
      right:100%;
      top:50%;
      transform:translateY(-50%);
      border-width:8px;
      border-style:solid;
      border-color:transparent white transparent transparent;
    }

    .whatsapp-container:hover .tooltip{
      opacity:1;
      visibility:visible;
      left:90px;
    }

    /* Ripple Animation */
    .ripple{
      position:absolute;
      border-radius:50%;
      background:rgba(255,255,255,.4);
      transform:scale(0);
      animation:ripple-effect .6s linear;
      pointer-events:none;
    }

    @keyframes ripple-effect{
      to{
        transform:scale(4);
        opacity:0;
      }
    }

    @keyframes pulse{
      0%{
        box-shadow:
          0 0 0 0 rgba(37,211,102,.5);
      }

      70%{
        box-shadow:
          0 0 0 20px rgba(37,211,102,0);
      }

      100%{
        box-shadow:
          0 0 0 0 rgba(37,211,102,0);
      }
    }

    /* Mobile */
    @media(max-width:768px){
      .whatsapp-btn{
        width:62px;
        height:62px;
        font-size:30px;
      }

      .tooltip{
        display:none;
      }
    }