/* Common Theme Variables */
:root {
    --primary-color: #007bff;
    --text-color: #333;
    --bg-color: #f5f5f5;
    --card-bg: #ffffff;
    --border-color: #dee2e6;
    --gradient-primary: linear-gradient(135deg, #007bff 0%, #00bcd4 100%);
    --gradient-accent: linear-gradient(45deg, #ff5733, #ff8c33);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.2);
    --progress-bg: rgba(0, 0, 0, 0.1);
    --skill-icon-color: #007bff;
    /* Navbar text should be dark in light theme */
    --navbar-text-color: #000000;
}

/* Dark Theme Variables */
html.dark-theme {
    --primary-color: #0d6efd;
    --text-color: #ffffff;
    --bg-color: #1a1a1a;
    --card-bg: #2d2d2d;
    --border-color: #404040;
    --gradient-primary: linear-gradient(135deg, #0d6efd 0%, #00bcd4 100%);
    --gradient-accent: linear-gradient(45deg, #ff8c33, #ff5733);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.4);
    --progress-bg: rgba(255, 255, 255, 0.1);
    --skill-icon-color: #0d6efd;
    /* Navbar has dark background in dark theme too */
    --navbar-text-color: #ffffff;
}

html.dark-theme .skill-item {
    background-color: var(--card-bg);
}

/* Ensure text inside cards is bright in dark theme */
html.dark-theme .card p,
html.dark-theme .card h2,
html.dark-theme .card h3 {
    color: var(--text-color) !important;
    /* Use the bright text color */
}

/* Common Theme Styles */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
    padding-top: 76px;
}

/* Navbar Styles - Basic structure */
/* Note: Main navbar styling is in the second navbar section below to avoid conflicts */
.navbar {
    height: 76px;
    box-sizing: border-box;
}

/* Override Bootstrap's navbar-dark to use navbar text color */
.navbar-dark .navbar-nav .nav-link,
.navbar-dark .navbar-brand {
    color: var(--navbar-text-color) !important;
}

/* Card and Section Styles */
.card,
.timeline-content,
.skill-item,
section {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Form Elements */
input,
textarea,
select {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-color: var(--border-color);
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Buttons */
.btn {
    transition: all 0.3s ease;
}

.btn-outline-light {
    border-color: var(--text-color);
    color: var(--text-color);
}

.btn-outline-light:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Theme Toggle Button */
.theme-toggle {
    background-color: transparent;
    border: 2px solid var(--text-color);
    color: var(--text-color);
    transition: all 0.3s ease;
    cursor: pointer;
    pointer-events: auto;
    -webkit-tap-highlight-color: rgba(255, 255, 255, 0.1);
    touch-action: manipulation;
}

.theme-toggle:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.theme-toggle:active {
    transform: scale(0.95);
}

/* Footer */
footer {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-top: 1px solid var(--border-color);
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Links */
a {
    color: var(--primary-color);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--gradient-accent);
}

/* Progress Bars */
.progress {
    background-color: var(--progress-bg);
    transition: background-color 0.3s ease;
}

.progress-bar {
    background: var(--gradient-primary);
    transition: background 0.3s ease;
}

/* Timeline */
.timeline::before {
    background-color: var(--primary-color);
}

.timeline-dot {
    background-color: var(--primary-color);
}

/* Skills Section */
.skill-item {
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.skill-item i {
    color: var(--skill-icon-color);
    transition: color 0.3s ease;
}

.skill-item p {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.skill-category h4 {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.skill-progress-item span {
    color: var(--text-color);
    transition: color 0.3s ease;
}

/* Skills Visualization */
.skills-details {
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.skill-items .skill-item {
    background-color: transparent;
    border: none;
}

.skill-items .skill-item i {
    color: var(--skill-icon-color);
}

.skill-items .skill-item span {
    color: var(--text-color);
}

/* Hero Section */
.hero {
    background: var(--gradient-primary);
    color: white;
}

/* Animations */
.fade-in {
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

/* Custom Scrollbar */
::-webkit-scrollbar-track {
    background: var(--bg-color);
}

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

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

/* Common Styles */
:root {
    /* Primary Colors */
    --primary-dark: #1a1f36;
    --primary-light: #2d3748;
    --accent-color: #6366f1;
    --accent-hover: #818cf8;

    /* Text Colors */
    --text-light: #ffffff;
    --text-dark: #1a1f36;
    --text-muted: rgba(255, 255, 255, 0.8);

    /* Background Colors */
    --bg-light: #f8fafc;
    --bg-dark: #1a1f36;
    --bg-card: #ffffff;

    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    --gradient-accent: linear-gradient(45deg, var(--accent-color), var(--accent-hover));
    --gradient-card: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));

    /* Shadow Colors */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 25px rgba(0, 0, 0, 0.15);
}

html {
    overflow-x: hidden;
    width: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    background: var(--bg-light);
    color: var(--text-dark);
    padding-top: 76px !important;
    overflow-x: hidden;
    width: 100%;
    position: relative;
}

/* Navbar Styles */
.navbar {
    /* Use a fixed dark gradient that works in both light and dark themes */
    background: linear-gradient(135deg, #1a2332 0%, #2c3e50 100%);
    padding: 0.8rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    width: 100%;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    /* Use a translucent background that works over light and dark */
    background: rgba(54, 69, 79, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--navbar-text-color) !important;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
    position: relative;
}

.navbar-brand::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.navbar-brand:hover::after {
    width: 100%;
}

.nav-link {
    color: var(--navbar-text-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    margin: 0 0.2rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.nav-link:hover::before {
    width: 80%;
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--accent-color) !important;
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
    background: transparent !important;
    transition: all 0.3s ease;
}

.navbar-toggler:focus {
    box-shadow: none;
    outline: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
    transition: transform 0.3s ease;
}

/* Mobile Navbar Styles */
@media (max-width: 991px) {
    .navbar-collapse {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: rgba(54, 69, 79, 0.98);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        padding: 1rem;
        margin: 0;
        border-radius: 0;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
        height: auto;
        max-height: calc(100vh - 76px);
        overflow-y: auto;
        display: block !important;
    }

    .navbar-collapse.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .navbar-collapse.collapsing {
        transition: none;
    }

    .navbar-nav {
        gap: 0.5rem;
        padding: 1rem 0;
    }

    .nav-link {
        padding: 1rem !important;
        border-radius: 8px;
        text-align: center;
        background: rgba(255, 255, 255, 0.05);
        margin: 0.5rem 0;
        transition: all 0.3s ease;
    }

    .nav-link::before {
        display: none;
    }

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: translateY(-2px);
    }

    .nav-link.active {
        background: rgba(255, 87, 51, 0.2);
        color: var(--accent-color) !important;
    }

    .navbar-toggler {
        padding: 0.5rem;
        border: 2px solid rgba(255, 255, 255, 0.2);
        border-radius: 8px;
        transition: all 0.3s ease;
        margin-right: 1rem;
    }

    .navbar-toggler:focus {
        box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
    }

    .navbar-toggler:not(.collapsed) {
        background: rgba(255, 255, 255, 0.1) !important;
        border-color: var(--accent-color);
    }

    .navbar-toggler:not(.collapsed) .navbar-toggler-icon {
        transform: rotate(90deg);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

/* Footer Styles */
footer {
    background: var(--gradient-primary);
    color: var(--text-light);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
    position: relative;
    width: 100%;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23ffffff10" x="0" y="0" width="100" height="100"/></svg>');
    opacity: 0.1;
}

footer p {
    margin: 0;
    font-size: 1rem;
    position: relative;
    z-index: 1;
}

/* Main Content Container */
main {
    flex: 1;
    padding: 2rem 0;
}

/* Common Button Styles */
.btn-primary {
    background: var(--gradient-accent);
    border: none;
    color: var(--text-light);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    background: linear-gradient(45deg, var(--accent-hover), var(--accent-color));
    color: var(--text-light);
}

/* Common Card Styles */
.card {
    background: var(--bg-card);
    border: none;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.25);
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.3rem;
    }

    .nav-link {
        padding: 0.5rem !important;
    }

    footer {
        padding: 1rem 0;
    }
}

/* Modern Button Styles */
.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-accent);
    border: none;
    color: var(--text-light);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--text-light);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Section Styles */
section {
    padding: 80px 0;
    position: relative;
    scroll-margin-top: 80px;
}

section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Modern Animation Classes */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Modern Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gradient-accent);
    border-radius: 5px;
}

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

/* Container Styles */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 576px) {
    .container {
        max-width: 540px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}