/* Base foundation styles - Typography, layout, reset */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-body);
    color: var(--text-primary); /* Add this line */
    height: 100vh; /* Use height instead of min-height */
    display: flex;
    flex-direction: column;
    padding-top: 60px; /* Adjust based on your navbar height. Was 70px */
    box-sizing: border-box; /* Include padding in height calculation */
    overflow: hidden; /* Prevent body from ever scrolling */
}

/* New main content area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Prevents scrollbars on the main tag */
    /* --- START: Add transition for layer animation --- */
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
    /* --- END: Add transition --- */
}

/* Navigation */
.navbar {
    background-color: var(--bg-navbar);
    color: var(--text-navbar);
    padding: 5px 20px; /* Reduced vertical padding from 15px to 10px */
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 5%;
    right: 5%;
    z-index: 1100;
    /* --- MODIFIED: Adjust transition for layer animation --- */
    transition: all 0.6s cubic-bezier(0.76, 0, 0.24, 1);
    /* --- END: MODIFIED --- */
    transform-origin: top center;
    border-radius: 0 0 12px 12px;
    box-shadow: var(--shadow-medium);
}

/* Navbar collapsed state */
.navbar.collapsed {
    padding: 8px 15px;
    transform: scale(0.8);
    border-radius: 0 0 15px 15px;
    box-shadow: var(--shadow-medium);
}

/* Navbar mini state (just a small button) */
.navbar.mini {
    padding: 0;
    width: 50px;
    height: 50px;
    border-radius: 25px;
    left: 20px;
    right: auto;
    top: 20px;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.navbar.mini:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

/* Hide content when mini */
.navbar.mini .navbar-collapse,
.navbar.mini .nav-logo {
    display: none;
}

/* Show mini hamburger icon */
.navbar.mini .hamburger-icon {
    display: block;
    width: 20px;
    height: 15px;
    position: relative;
}

.navbar.mini .hamburger-icon span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--text-navbar);
    border-radius: 1px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: 0.25s ease-in-out;
}

.navbar.mini .hamburger-icon span:nth-child(1) {
    top: 0px;
}

.navbar.mini .hamburger-icon span:nth-child(2) {
    top: 6px;
}

.navbar.mini .hamburger-icon span:nth-child(3) {
    top: 12px;
}

/* Hamburger icon animation on hover - transforms to + sign */
.navbar.mini:hover .hamburger-icon span:nth-child(1) {
    top: 6px;
    transform: rotate(90deg); /* Horizontal line of the + */
}

.navbar.mini:hover .hamburger-icon span:nth-child(2) {
    top: 6px;
    transform: rotate(0deg); /* Vertical line of the + */
    opacity: 1; /* Keep this line visible */
}

.navbar.mini:hover .hamburger-icon span:nth-child(3) {
    top: 6px;
    transform: rotate(90deg); /* Same as first line, creates thickness */
    opacity: 0; /* Hide this line to avoid triple thickness */
}

/* Alternative approach for cleaner + sign - use only 2 lines */
/* Uncomment this section and comment the above if you prefer a cleaner + */
/*
.navbar.mini:hover .hamburger-icon span:nth-child(1) {
    top: 6px;
    transform: rotate(90deg);
}

.navbar.mini:hover .hamburger-icon span:nth-child(2) {
    top: 6px;
    transform: rotate(0deg);
    opacity: 1;
}

.navbar.mini:hover .hamburger-icon span:nth-child(3) {
    opacity: 0;
    transform: translateX(-60px);
}
*/

/* Hide hamburger icon when not mini */
.navbar:not(.mini) .hamburger-icon {
    display: none;
}

/* Ensure navbar content is visible when not mini */
.navbar:not(.mini) .navbar-collapse,
.navbar:not(.mini) .nav-logo {
    opacity: 1;
    visibility: visible;
}

.navbar-collapse {
    display: flex;
    flex-grow: 1;
    justify-content: space-between;
    align-items: center;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.navbar-nav {
    display: flex;
    flex-direction: row;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 20px;
}

.nav-logo {
    font-size: 20px;
    font-weight: bold;
    margin-right: 40px;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.navbar .nav-link,
.navbar .nav-link:visited {
    color: var(--text-navbar);
    text-decoration: none;
    transition: opacity 0.3s;
}

.navbar .nav-link:hover {
    opacity: 0.8;
}

/* Container - Now used on a per-page basis */
.container {
    flex: 1;
    max-width: 800px;
    width: 100%;
    margin: 20px auto;
    padding: 20px;
    background: var(--bg-container);
    border-radius: 10px;
    box-shadow: var(--shadow-medium);
    box-sizing: border-box;
}

/* New wrapper for flash messages to keep them centered */
.flash-messages-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Base typography */
h1 {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 30px;
}

/* --- START: New Layer 1 "Curtain Open" Animation --- */
body.viewing-layer-1 .navbar {
    /* Move navbar up, leaving the bottom edge visible */
    transform: translateY(-85%);
}

body.viewing-layer-1 .main-content {
    /* Move main content down, leaving the top edge visible */
    transform: translateY(95vh);
}
/* --- END: New Layer 1 Animation --- */

/* Form elements */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 16px;
    box-sizing: border-box;
}

/* Base animations */
.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes button-pop {
    0% { transform: scale(1); }
    50% { transform: scale(0.92); }
    100% { transform: scale(1); }
}

/* Responsive navbar adjustments */
@media (max-width: 768px) {
    .navbar {
        padding: 10px 15px;
    }
    
    .navbar.mini {
        width: 45px;
        height: 45px;
        top: 15px;
        left: 15px;
    }
    
    .navbar.mini .hamburger-icon {
        width: 18px;
        height: 13px;
    }
    
    .nav-logo {
        font-size: 18px;
        margin-right: 20px;
    }
    
    .navbar-nav {
        gap: 15px;
    }
    
    body {
        padding-top: 60px;
    }
}