/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* Modern Design System */
:root {
    --primary-color: #2ecc71;
    --text-color: #2c3e50;
    --heading-color: #000000;
    --background-color: #ffffff;
    --card-background: #ffffff;
    --border-color: #e0e0e0;
    --hover-color: #f8f9fa;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s;
}

/* Base Styles */
body {
    font-family: 'Noto Sans Myanmar', sans-serif;
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    transition: background-color var(--transition-speed);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

/* Navigation */
.navbar {
    background-color: var(--background-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    padding: 1rem 0;
    transition: all var(--transition-speed);
}

.navbar-brand {
    color: var(--primary-color) !important;
    font-weight: 700;
    font-size: 1.5rem;
    transition: transform var(--transition-speed);
}

.navbar-brand:hover {
    transform: scale(1.05);
}

.nav-link {
    color: var(--text-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all var(--transition-speed);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: all var(--transition-speed);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary-color) !important;
}

.nav-link.active::after {
    width: 100%;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #27ae60 100%);
    color: white;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    opacity: 0.1;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100%); }
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

/* Cards */
.card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 4px 6px var(--shadow-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px var(--shadow-color);
}

.card-header {
    background-color: var(--primary-color);
    color: white;
    border-bottom: none;
    padding: 1rem;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    font-weight: 500;
    transition: all var(--transition-speed);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background-color: #27ae60;
    border-color: #27ae60;
    transform: translateY(-2px);
}

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

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* List Groups */
.list-group-item {
    border: 1px solid var(--border-color);
    transition: background-color var(--transition-speed);
}

.list-group-item:hover {
    background-color: var(--hover-color);
}

/* Badges */
.badge {
    padding: 0.5em 1em;
    border-radius: 20px;
    font-weight: 500;
}

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

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading Animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--background-color);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.loading.show {
    display: flex;
    opacity: 1;
}

.loading::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: loading 0.75s ease infinite;
}

@keyframes loading {
    from { transform: rotate(0turn) }
    to { transform: rotate(1turn) }
}

/* Theme Switch */
.theme-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--card-background);
    padding: 10px 15px;
    border-radius: 25px;
    box-shadow: 0 2px 10px var(--shadow-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 1000;
    transition: all var(--transition-speed);
}

.theme-switch:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.theme-switch i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--card-background);
    display: flex;
    justify-content: space-around;
    padding: 0.5rem;
    box-shadow: 0 -2px 10px var(--shadow-color);
    z-index: 1000;
}

.bottom-nav a {
    color: var(--text-color);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem;
    transition: all var(--transition-speed);
}

.bottom-nav a i {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.bottom-nav a.active {
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

/* Page Transitions */
.page-transition {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Footer */
footer {
    background-color: var(--card-background);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 3rem;
}

footer h5 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: #27ae60;
}