/* Header Styles */
/* Header container: vertical layout and spacing */
.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
    position: relative;
}

/* Logo area: center alignment and spacing */
.logo {
    text-align: center;
    margin-bottom: 20px;
}

.logo h1 {
    font-size: 48px;
    font-weight: normal;
    letter-spacing: 8px;
    margin-bottom: 5px;
}

.logo p {
    font-size: 14px;
    letter-spacing: 3px;
    font-weight: normal;
}

/* Main navigation bar: layout, gradient, and glass effect */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 100%;
    background: 
        linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(84, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.6) 100%),
        radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
    padding: 16px 50px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    margin: 0;
    box-sizing: border-box;
    position: relative;
    overflow: visible; /* ensure inner buttons are not clipped */
    z-index: 100; /* Lower navbar stacking so modals overlay correctly */
}

.nav::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.03), transparent);
    pointer-events: none;
}

/* Left-side nav links container */
.nav-left {
    display: flex;
    gap: 30px;
}

/* Navigation link styles and interactive transitions */
.nav-link {
    color: white;
    text-decoration: none;
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 8px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link .nav-icon {
    font-size: 1rem;
    color: white;
    font-weight: normal;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.9;
}

.nav-link:hover .nav-icon {
    transform: scale(1.1);
    opacity: 1;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-link:hover::before {
    left: 100%;
}

/* Right-side controls: login and icons */
.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Primary login button styling and interactions */
.login-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    color: white;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-decoration: none;
    position: relative;
    z-index: 1001; /* keep clickable above overlapping UI */
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.6s ease;
}

.login-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    color: #540000;
    transform: translateY(-3px) scale(1.05);
    box-shadow: 
        0 12px 32px rgba(255, 255, 255, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.login-btn:hover::before {
    left: 100%;
}

.login-btn:active {
    transform: translateY(-1px) scale(1.02);
    box-shadow: 
        0 6px 20px rgba(255, 255, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transition: all 0.1s ease;
}

/* Navigation icon group spacing */
.nav-icons {
    display: flex;
    gap: 15px;
    font-size: 18px;
}

/* Responsive Navigation — phones */
@media (max-width: 768px) {
    .logo h1 {
        font-size: 28px;
        letter-spacing: 6px;
    }
    .logo p {
        font-size: 12px;
        letter-spacing: 2px;
    }

    .nav {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 12px 16px;
        border-radius: 14px;
        margin: 0;
    }

    .nav-left {
        flex-direction: column;
        gap: 8px;
        width: 100%;
        align-items: stretch; /* make links fill width */
    }

    .nav-link {
        width: 100%;
        justify-content: center;
        padding: 10px 12px;
        font-size: 15px;
        text-align: center; /* center text inside link */
    }

    .nav-link span {
        width: 100%;
        text-align: center;
    }

    .nav-right {
        width: 100%;
        justify-content: center; /* keep right controls centered below links */
    }

    .login-btn {
        width: 100%;
        justify-content: center;
        padding: 12px;
        font-size: 14px;
    }

    .nav-icons {
        gap: 10px;
        font-size: 16px;
    }
}

/* Extra small phones */
@media (max-width: 420px) {
    .nav {
        padding: 10px 12px;
        gap: 10px;
    }
    .nav-link {
        font-size: 14px;
        padding: 9px 10px;
    }
    .login-btn {
        padding: 10px;
        font-size: 13px;
    }
}

/* Disable aggressive hover effects on touch devices to avoid sticky states */
@media (hover: none) and (pointer: coarse) {
    .nav-link:hover,
    .login-btn:hover {
        background: rgba(255, 255, 255, 0.12);
        transform: none;
        box-shadow: none;
        border-color: rgba(255, 255, 255, 0.18);
    }
    .nav-link:active,
    .login-btn:active {
        background: rgba(255, 255, 255, 0.18);
        transform: scale(0.99);
        box-shadow: none;
    }
}

/* Admin Navigation Area Styles */
/* Admin toolbar container */
.admin-nav-area {
    background: 
        linear-gradient(135deg, rgba(84, 0, 0, 0.4) 0%, rgba(139, 0, 0, 0.3) 50%, rgba(84, 0, 0, 0.4) 100%),
        radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.05) 0%, transparent 60%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    margin: 24px 0;
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.admin-nav-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.02), transparent);
    pointer-events: none;
}

.admin-nav-container {
    padding: 20px 30px;
}

.admin-nav-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 15px;
}

.admin-nav-title .admin-icon {
    font-size: 24px;
}

.admin-nav-title h3 {
    color: white;
    font-family: 'Poppins', sans-serif;
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    letter-spacing: 1px;
}

/* Admin quick actions layout */
.admin-nav {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

/* Individual admin nav link button */
.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    text-decoration: none;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.admin-nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.admin-nav-link:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.admin-nav-link:hover::before {
    left: 100%;
}

.admin-nav-link.logout-link {
    background: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.4);
    color: #ff6b6b;
}

.admin-nav-link.logout-link:hover {
    background: rgba(220, 53, 69, 0.4);
    border-color: rgba(220, 53, 69, 0.7);
    color: #ff5252;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(220, 53, 69, 0.4);
}

.admin-nav-link.active {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.admin-nav-link .nav-icon {
    font-size: 16px;
}

/* Hide admin nav area by default */
body:not(.admin-mode) .admin-nav-area {
    display: none !important;
}

/* Responsive Nav Hover Fixes and Focus Styling */
.nav-link:focus,
.login-btn:focus {
    outline: none;
}

.nav-link:focus-visible,
.login-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.25);
    outline-offset: 2px;
}

/* Softer interactions on mobile-sized viewports */
@media (max-width: 768px) {
    .nav-link:hover {
        background: rgba(255, 255, 255, 0.12);
        transform: none;
        box-shadow: none;
        border-color: rgba(255, 255, 255, 0.18);
    }
    .nav-link::before { display: none; }

    .login-btn:hover {
        background: rgba(255, 255, 255, 0.12);
        color: #fff;
        transform: none;
        box-shadow: none;
        border-color: rgba(255, 255, 255, 0.2);
    }
    .login-btn::before { display: none; }
}

/* Disable hover-only effects on touch devices */
@media (hover: none) {
    .nav-link:hover {
        background: rgba(255, 255, 255, 0.12);
        transform: none;
        box-shadow: none;
        border-color: rgba(255, 255, 255, 0.18);
    }
    .login-btn:hover {
        background: rgba(255, 255, 255, 0.12);
        color: #fff;
        transform: none;
        box-shadow: none;
        border-color: rgba(255, 255, 255, 0.2);
    }
    .nav-link::before,
    .login-btn::before {
        display: none;
    }
}
/* Mobile centering and left padding for nav */
@media (max-width: 768px) {
    .nav {
        max-width: none;
        margin: 0;
        padding: 12px 16px; /* consistent padding without side margins */
        border-radius: 0; /* full-width appearance */
    }
    .nav-left,
    .nav-right {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .nav-link,
    .login-btn {
        display: block;
        width: 100%;
        text-align: center;
        padding-left: 16px;
        padding-right: 16px;
        box-sizing: border-box; /* ensure padding doesn’t overflow width */
    }
    .nav-link { margin: 4px 0; }
}