/* --- COMPLETE AND FINAL CSS - ALL STYLES RESTORED --- */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4F46E5;
    --secondary-color: #06B6D4;
    --accent-color: #F59E0B;
    --success-color: #10B981;
    --warning-color: #F97316;
    --error-color: #EF4444;
    --bg-primary: #FEFEFE;
    --bg-secondary: #F8FAFC;
    --bg-tertiary: #F1F5F9;
    --bg-card: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --pastel-pink: #FBBF24;
    --pastel-blue: #60A5FA;
    --pastel-purple: #A78BFA;
    --pastel-green: #34D399;
    --pastel-orange: #FB923C;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --font-family: 'Inter', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --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-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-2xl) 0;
    opacity: 1; /* Corrected opacity */
    transform: translateY(0); /* Corrected transform */
    transition: all var(--transition-slow);
}

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

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(241, 245, 249, 0.8);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 3px;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #FEFEFE 0%, #F8FAFC 50%, #F1F5F9 100%);
}

.waves-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.wave {
    position: absolute;
    width: 200%;
    height: 200%;
      background: linear-gradient(45deg, 
        rgba(79, 70, 229, 0.1), 
        rgba(6, 182, 212, 0.1), 
        rgba(245, 158, 11, 0.1), 
        rgba(16, 185, 129, 0.1)
    );
    border-radius: 40%;
    animation: wave 15s infinite linear;
}

.wave1 { animation-duration: 20s; animation-delay: -5s; opacity: 0.3; }
.wave2 { animation-duration: 25s; animation-delay: -10s; opacity: 0.2; }
.wave3 { animation-duration: 30s; animation-delay: -15s; opacity: 0.1; }
@keyframes wave { 100% { transform: rotate(360deg) scale(1.1); } }




.particles-container {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    opacity: 0.6;
    animation: float 6s infinite ease-in-out;
}
@keyframes float { 50% { transform: translateY(-20px) rotate(180deg); opacity: 1; } }

.hero-content {
    text-align: center;
    z-index: 2;
    position: relative;
    max-width: 800px;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-xl); }
.btn-secondary { background: transparent; color: var(--text-primary); border-color: var(--primary-color); }
.btn-secondary:hover { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: white; transform: translateY(-2px); }

/* Certificates Section */
.certificates-section { background: var(--bg-secondary); }
.certificate-counter {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    max-width: 300px;
    margin: var(--spacing-lg) auto;
}
.counter-number {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.counter-text { font-size: var(--font-size-lg); color: var(--text-secondary); font-weight: 500; }
.certificates-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}
.search-container { position: relative; flex: 1; min-width: 250px; }
.search-input, .category-filter {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--bg-tertiary);
    border-radius: 12px;
    font-size: var(--font-size-base);
    background: var(--bg-card);
    transition: all var(--transition-fast);
}
.search-input:focus, .category-filter:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}
.search-input { padding-left: 45px; }
.search-icon { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.filter-container { min-width: 200px; }
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}
.certificate-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.certificate-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.certificate-image-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    aspect-ratio: 16/9;
}
.certificate-image { width: 100%; height: 100%; object-fit: cover; transition: all var(--transition-normal); }
.certificate-card:hover .certificate-image { transform: scale(1.05); }
.certificate-info h4 { font-size: var(--font-size-lg); font-weight: 600; margin-bottom: var(--spacing-xs); }
.certificate-info p { color: var(--text-secondary); font-size: var(--font-size-sm); margin-bottom: var(--spacing-sm); }
.certificate-category {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
}

/* Portfolio Section */
.portfolio-section { background: var(--bg-primary); }
.about-section, .skills-section, .projects-section { margin-bottom: var(--spacing-2xl); }
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}
.about-text h3, .skills-section h3, .projects-section h3 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.skills-section h3, .projects-section h3 { text-align: center; margin-bottom: var(--spacing-xl); }
.about-text p { font-size: var(--font-size-lg); color: var(--text-secondary); margin-bottom: var(--spacing-md); }
.about-image { display: flex; justify-content: center; }
.profile-placeholder {
    width: 100px; height: 100px; background: linear-gradient(135deg, var(--pastel-blue), var(--pastel-purple)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: var(--font-size-5xl); color: white; box-shadow: var(--shadow-xl);
}
.profile-photo-container {
  max-width: 100px; /* Sets a maximum size for the container */
  width: 100%;      /* Allows it to shrink on smaller screens */
  margin: auto;     /* This might help with centering */
}

.profile-photo-container img {
  width: 100%; /* Makes the image fill its container */
  height: auto; /* Maintains the aspect ratio */
  aspect-ratio: 1 / 1; /* A modern way to ensure it's a square before clipping to a circle */
  object-fit: cover;
  border-radius: 50%;
}
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-lg);
}
.skill-item {
    display: flex; flex-direction: column; align-items: center; padding: var(--spacing-lg); background: var(--bg-card); border-radius: 16px; box-shadow: var(--shadow-md); transition: all var(--transition-normal);
}
.skill-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.skill-icon {
    font-size: var(--font-size-3xl); margin-bottom: var(--spacing-md); background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.skill-item span { font-weight: 600; }
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}
.project-card { background: var(--bg-card); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-md); transition: all var(--transition-normal); }
.project-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.project-image { height: 200px; overflow: hidden; }
.project-placeholder { width: 100%; height: 100%; background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary)); display: flex; align-items: center; justify-content: center; font-size: var(--font-size-3xl); color: var(--text-muted); }
.project-content { padding: var(--spacing-lg); }
.project-content h4 { font-size: var(--font-size-xl); font-weight: 600; margin-bottom: var(--spacing-md); }
.project-content p { color: var(--text-secondary); margin-bottom: var(--spacing-md); }
.project-tags { display: flex; gap: var(--spacing-xs); flex-wrap: wrap; }
.tag { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: white; padding: var(--spacing-xs) var(--spacing-sm); border-radius: 20px; font-size: var(--font-size-xs); font-weight: 600; }

/* Contact Section */
.contact-section { background: var(--bg-secondary); }
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}
.contact-info { display: flex; flex-direction: column; gap: var(--spacing-lg); }
.contact-item {
    display: flex; align-items: center; gap: var(--spacing-md); padding: var(--spacing-lg); background: var(--bg-card); border-radius: 16px; box-shadow: var(--shadow-md);
}
.contact-icon {
    width: 50px; height: 50px; background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: white; font-size: var(--font-size-lg);
}
.contact-details h4 { font-weight: 600; margin-bottom: var(--spacing-xs); }
.contact-details p { color: var(--text-secondary); }
.contact-form { background: var(--bg-card); padding: var(--spacing-xl); border-radius: 16px; box-shadow: var(--shadow-lg); }
.form-group { margin-bottom: var(--spacing-lg); }
.form-group input, .form-group textarea {
    width: 100%; padding: var(--spacing-md); border: 2px solid var(--bg-tertiary); border-radius: 12px; font-size: var(--font-size-base); font-family: var(--font-family);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}
.social-links { display: flex; justify-content: center; gap: var(--spacing-md); }
.social-link {
    width: 50px; height: 50px; background: var(--bg-card); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--text-primary); font-size: var(--font-size-lg); text-decoration: none; box-shadow: var(--shadow-md); transition: all var(--transition-normal);
}
.social-link:hover { background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: white; transform: translateY(-3px); }

/* Back to Top Button */
.back-to-top {
    position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)); color: white; border: none; border-radius: 50%; font-size: var(--font-size-lg); cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(20px); transition: all var(--transition-normal); z-index: 1000; box-shadow: var(--shadow-lg);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
    .about-content, .contact-content { grid-template-columns: 1fr; }
}

/* Certificate Card Base */
.certificate-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Lift + shadow on hover */
.certificate-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.25);
}

/* RGB border glow — only on hover */
.certificate-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 3px;
    background: linear-gradient(90deg, red, orange, yellow, green, cyan, blue, violet, red);
    background-size: 400% 400%;
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
    opacity: 0; /* hidden by default */
    transition: opacity 0.3s ease;
}

/* Show animated border only when hovered */
.certificate-card:hover::before {
    opacity: 1;
    animation: rgbBorder 6s linear infinite;
}

/* Border gradient animation */
@keyframes rgbBorder {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.about-me {
  padding: 60px 20px;
  position: relative;
  z-index: 2;
}

.about-container {
  max-width: 800px;
  margin: auto;
  background: rgba(255, 255, 255, 0.05); /* translucent panel */
  padding: 30px;
  border-radius: 15px;
  backdrop-filter: blur(6px);
}

.about-me h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: #ffffff;
  text-align: center;
  text-shadow: 1px 1px 5px rgba(0,0,0,0.4);
}

.about-me p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: #f5f5f5;
  text-shadow: 1px 1px 4px rgba(0,0,0,0.5); /* improves readability over gradient */
}

.about-me strong {
  color: #ffdd57; /* gold highlight for emphasis */
  font-weight: 700;
}

.about-me .highlight {
  font-size: 1.2rem;
  color: #ffd700; /* richer gold for your name */
}

.about-me em {
  color: #ffb6c1; /* soft pink for subtle emphasis */
}