/* Modern Light Theme CSS Updates */

:root {
    /* Light color palette with blue theme */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-glass: rgba(255, 255, 255, 0.8);
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --accent-primary: #13474f;
    --accent-secondary: #13474f;
    --accent-gradient: linear-gradient(135deg, #13474f 0%, #13474f 100%);
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-subtle: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 10px 25px -3px rgba(0, 0, 0, 0.1);
    --shadow-large: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode variables */
body.dark-mode {
    --bg-primary: #181c1f;
    --bg-secondary: #23272a;
    --bg-card: rgba(36, 41, 46, 0.95);
    --bg-glass: rgba(36, 41, 46, 0.85);
    --text-primary: #f8f8f2;
    --text-secondary: #b0b7bd;
    --accent-primary: #4ecdc4;
    --accent-secondary: #13474f;
    --accent-gradient: linear-gradient(135deg, #13474f 0%, #4ecdc4 100%);
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-subtle: 0 4px 6px -1px rgba(0,0,0,0.5);
    --shadow-medium: 0 10px 25px -3px rgba(0,0,0,0.5);
    --shadow-large: 0 25px 50px -12px rgba(0,0,0,0.7);
}

/* Optional: transition for smooth theme switch */
body, body * {
    transition: background 0.3s, color 0.3s, border-color 0.3s;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

/* Add animated background with warm colors */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(19, 71, 79, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(19, 71, 79, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(19, 71, 79, 0.08) 0%, transparent 50%);
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-primary) var(--bg-secondary);
}

/* Custom scrollbar for webkit browsers */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-gradient);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* Modern Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-medium);
    z-index: 999;
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(25px);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    transition: var(--transition);
}

.navbar-brand:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
    text-decoration: none;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    margin: 0 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    position: relative;
    transition: var(--transition);
    text-transform: capitalize;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 12px;
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.nav-link:hover {
    color: var(--text-primary);
    transform: translateY(-2px);
    text-decoration: none;
}

.nav-link:hover::before {
    opacity: 0.1;
}

.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
}

.nav-link.active::before {
    opacity: 0.15;
}

/* Remove the ::after pseudo-element that creates the underline */
.nav-link::after {
    display: none;
}

/* Modern hamburger menu */
.custom-toggler {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
}

.custom-toggler:hover {
    background: var(--bg-glass);
}

.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
}

/* Hamburger icon transitions */
.navbar-toggler .hamburger span:nth-child(1) {
    /* Default: hamburger bar */
    transform: none;
}
.navbar-toggler .hamburger span:nth-child(2) {
    opacity: 1;
    transform: none;
}
.navbar-toggler .hamburger span:nth-child(3) {
    transform: none;
}

/* Show cross (X) only when not collapsed */
.navbar-toggler:not(.collapsed) .hamburger span:nth-child(1),
.navbar-toggler:not(.collapsed) .hamburger span:nth-child(2),
.navbar-toggler:not(.collapsed) .hamburger span:nth-child(3) {
    transform: none;
    opacity: 1;
}

/* Mobile menu improvements */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        border-radius: var(--border-radius);
        margin-top: 1rem;
        padding: 1rem;
        border: 1px solid var(--border-color);
    }
    
    .nav-link {
        margin: 0.25rem 0;
        text-align: center;
    }
}

.animate__fadeIn {
    animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    padding: 2rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Modern Profile Section */
.profile-section {
    text-align: center;
    padding: 6rem 0 4rem;
    position: relative;
}

.profile-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid transparent; /* was 4px */
    background: var(--accent-gradient);
    padding: 2px; /* was 4px */
    box-shadow: var(--shadow-large);
    transition: var(--transition);
    position: relative;
}

.profile-image::before {
    content: '';
    position: absolute;
    top: -4px;    /* was -8px */
    left: -4px;   /* was -8px */
    right: -4px;  /* was -8px */
    bottom: -4px; /* was -8px */
    background: var(--accent-gradient);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.profile-image:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: var(--shadow-large), 0 0 40px rgba(19, 71, 79, 0.3);
}

.profile-image:hover::before {
    opacity: 0.3;
    transform: scale(1.1);
}

.name {
    font-size: 3.5rem;
    font-weight: 900;
    margin: 2rem 0 1rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.title {
    color: var(--text-secondary);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 2rem;
    opacity: 0.9;
    position: relative;
}

/* Remove the line under the title */
.title::after {
    display: none;
}

.social-links {
    margin-top: 2.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    text-decoration: none; /* Add this line to remove underline */
}

.social-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--text-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.social-links a:hover::before {
    opacity: 0.1;
}

/* Modern Content Cards */
.content-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin-bottom: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.content-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition);
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
    border-color: rgba(0, 0, 0, 0.2);
}

.content-card:hover::before {
    opacity: 1;
}

.section-title {
    font-weight: 800;
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.02em;
    position: relative;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 2px;
}

.bio-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.card-title {
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.card-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.project-card::after, .certificate-card::after {
    content: 'View Project';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.7); /* transparent white overlay */
    backdrop-filter: blur(2px);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    opacity: 0;
    transition: var(--transition);
    border-radius: var(--border-radius);
}

.certificate-card::after {
    content: 'View Certificate';
}

.project-card:hover::after, .certificate-card:hover::after {
    opacity: 1;
    border-radius: 12px;
    /* background already set above */
}

.card-link {
    text-decoration: none;
    color: inherit;
}

.card-link:hover {
    text-decoration: none;
}

/* Modern Skills & Buttons */
.skill-tag-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 2rem 0;
}

.skill-tag {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    color: var(--text-primary) !important;
    padding: 0.75rem 1.25rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    text-transform: capitalize;
}

.skill-tag::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    transition: var(--transition);
    z-index: -1;
}

.skill-tag:hover {
    color: #fff !important;
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.skill-tag:hover::before {
    left: 0;
}

/* Modern Buttons */
.btn, button {
    background: var(--accent-gradient);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn::before, button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #13474f 0%, #13474f 100%);
    transition: var(--transition);
    z-index: -1;
}

.btn:hover, button:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium), 0 0 30px rgba(19, 71, 79, 0.4);
}

.btn:hover::before, button:hover::before {
    left: 0;
}

.btn:active, button:active {
    transform: translateY(-1px);
}

/* CV Button Container - Remove extra border */
.cv-button-container {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
}

/* Toggle Buttons */
.toggle-btn {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.toggle-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--accent-gradient);
    transition: var(--transition);
    z-index: -1;
}

.toggle-btn:hover {
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-2px);
}

.toggle-btn:hover::before {
    left: 0;
}

.view-more {
    text-align: center;
    margin-top: 2rem;
}

.view-more .btn,
.view-more button {
    color: var(--text-primary) !important; /* Dark text for visibility on white bg */
}

.view-more .btn:hover,
.view-more button:hover {
    color: #fff !important; /* White text on hover */
}

/* Form Styles - Center aligned */
.form-control {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
    width: 100%;
    text-align: center;
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.8;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
    background: rgba(255, 255, 255, 0.9);
}

.form-label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: block;
    text-align: center;
}

/* Success Message */
.success-message {
    display: none;
    background: var(--accent-gradient);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-top: 1rem;
    text-align: center;
    font-weight: 500;
    animation: slideIn 0.5s ease-out;
    box-shadow: var(--shadow-medium);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Modern Project & Certificate Cards */
.project-card, .certificate-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
    position: relative;
    cursor: pointer;
}

.project-card::before, .certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.project-card:hover, .certificate-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
    border-color: rgba(0, 0, 0, 0.2);
}

.project-card:hover::before, .certificate-card:hover::before {
    transform: scaleX(1);
}

.project-card .card-body, .certificate-card .card-body {
    padding: 2rem;
    position: relative;
}

/* Hover overlay effect */
.project-card::after, .certificate-card::after {
    content: 'View Project';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.7); /* transparent white overlay */
    backdrop-filter: blur(2px);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    opacity: 0;
    transition: var(--transition);
    border-radius: var(--border-radius);
}

.certificate-card::after {
    content: 'View Certificate';
}

.project-card:hover::after, .certificate-card:hover::after {
    opacity: 1;
    border-radius: 12px;
    /* background already set above */
}

.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.card-link:hover {
    text-decoration: none;
    color: inherit;
}

/* Modern Contact Section */
.contact-info {
    text-align: center;
    margin-bottom: 2rem;
}

.contact-info p {
    margin: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-info p:hover {
    color: var(--text-primary);
    transform: translateX(5px);
}

.contact-info i {
    width: 20px;
    text-align: center;
    color: var(--accent-primary);
}

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

.contact-info a:hover {
    color: var(--accent-primary);
}

/* Contact form - all centered */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form .form-control {
    text-align: center;
}

.contact-form textarea.form-control {
    text-align: center;
    resize: vertical;
    min-height: 120px;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    max-width: 90%;
    max-height: 90vh;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-large);
}

.modal-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    display: block;
}

.close-modal {
    position: absolute;
    top: -50px;
    right: 0;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    z-index: 1001;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 50%;
    transition: var(--transition);
}

.close-modal:hover {
    background: var(--accent-primary);
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .name {
        font-size: 2.5rem;
    }
    
    .profile-image {
        width: 150px;
        height: 150px;
    }
    
    .bio-container {
        padding: 1rem;
    }
    
    .content-card {
        padding: 1.5rem;
    }
    
    .section {
        padding: 2rem 0;
    }
    
    .skill-tag-container {
        gap: 0.5rem;
    }
    
    .skill-tag {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

/* Animation Classes */
.animate__fadeIn {
    animation: modernFadeIn 0.8s ease-out forwards;
}

@keyframes modernFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: modernFadeIn 0.5s ease-in;
}

.fade-out {
    animation: modernFadeOut 0.5s ease-out;
}

@keyframes modernFadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}

.hidden {
    display: none;
}

.no-hover {
    pointer-events: none;
    opacity: 0.6;
}

.no-hover:hover {
    transform: none;
    box-shadow: none;
}

.custom-toggler:hover .hamburger span {
    background: #fff;
}