/* Language and theme switch animation */
.language-fade {
    animation: langFade 0.5s cubic-bezier(.4,0,.2,1);
}
@keyframes langFade {
    from { opacity: 0; transform: translateX(40px);}
    to { opacity: 1; transform: translateX(0);}
}
.theme-fade {
    animation: themeFade 0.5s cubic-bezier(.4,0,.2,1);
}
@keyframes themeFade {
    from { opacity: 0; transform: scale(0.95);}
    to { opacity: 1; transform: scale(1);}
}
/* Base styles and custom properties */
:root {
    --bg-light: #f1f5f9;
    --bg-dark: #0f172a;
    --text-light: #0f172a;
    --text-dark: #e2e8f0;
    --glass-bg-light: rgba(255, 255, 255, 0.6);
    --glass-bg-dark: rgba(30, 41, 59, 0.6);
    --border-light: rgba(203, 213, 225, 0.5);
    --border-dark: rgba(71, 85, 105, 0.5);
    --accent-color: #ef4444;
    --accent-hover-color: #dc2626;
}

body {
    font-family: 'Inter', sans-serif;
    transition: background-color 0.5s ease, color 0.5s ease;
}

section[id] {
    scroll-margin-top: 5rem;
}

.font-logo {
    font-family: 'Lobster', cursive;
}

/* Light Mode */
body {
    background-color: var(--bg-light);
    color: var(--text-light);
}

.glass-card {
    background-color: var(--glass-bg-light);
    border: 1px solid var(--border-light);
}

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

.text-secondary {
    color: #475569;
}

.text-accent {
    color: var(--accent-color);
}

.border-color {
    border-color: #e2e8f0;
}

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

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

/* Dark Mode */
html.dark body {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

html.dark .glass-card {
    background-color: var(--glass-bg-dark);
    border: 1px solid var(--border-dark);
}

html.dark .text-main {
    color: var(--text-dark);
}

html.dark .text-secondary {
    color: #94a3b8;
}

html.dark .border-color {
    border-color: #334155;
}

/* Glassmorphism effect */
.glass-card {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: background-color 0.5s ease, border-color 0.5s ease;
}

/* Background pattern inspired by Nepali Dhaka fabric */
.nepali-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    opacity: 0.05;
    background-image:
        linear-gradient(var(--accent-color) 1px, transparent 1px),
        linear-gradient(to right, var(--accent-color) 1px, transparent 1px);
    background-size: 20px 20px;
    transition: opacity 0.5s ease;
}

html.dark .nepali-bg {
    opacity: 0.03;
}

/* Scroll reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Custom dropdown for language switcher */
.lang-option img {
    transition: transform 0.2s ease;
}

.lang-option:hover img {
    transform: scale(1.1);
}

/* Typewriter effect */
.typewriter-cursor::after {
    content: '|';
    animation: blink 1s step-end infinite;
    color: var(--accent-color);
}

@keyframes blink {
    from, to { opacity: 1 }
    50% { opacity: 0 }
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: var(--accent-color);
    opacity: 0.2;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
    border-radius: 3px;
}

.timeline-container {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-container.left {
    left: 0;
}

.timeline-container.right {
    left: 50%;
}

.timeline-container::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -12px;
    background-color: var(--bg-light);
    border: 4px solid var(--accent-color);
    top: 25px;
    border-radius: 50%;
    z-index: 1;
    transition: background-color 0.5s ease;
}

html.dark .timeline-container::after {
    background-color: var(--bg-dark);
}

.timeline-container.right::after {
    left: -13px;
}

.timeline-content {
    position: relative;
}

@media screen and (max-width: 768px) {
    .timeline::after {
        left: 31px;
    }

    .timeline-container {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-container.right {
        left: 0%;
    }

    .timeline-container.left::after,
    .timeline-container.right::after {
        left: 18px;
    }
}