/* Navbar Styles */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
}

.logo a {
    display: flex;
    align-items: center;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--color-primary);
    gap: 10px;
}

.logo img {
    height: 40px;
    width: auto;
}

/* Desktop Navigation */
.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-links a {
    font-weight: 500;
    color: var(--color-text-main);
    position: relative;
    padding: 8px 0;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--color-primary);
}

/* Smooth Center-Out Underline Animation */
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-secondary);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover::after {
    transform: scaleX(1);
}

/* Auth Buttons (Desktop) */
.auth-buttons {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-left: 20px;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 0.9rem;
}

/* Auth enhanced buttons */
.auth-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 700;
    border: 1px solid var(--color-border);
    background: var(--color-bg-light);
    color: var(--color-primary);
    transition: var(--transition);
}
.auth-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.login-btn { background: var(--color-bg-light); }
.register-btn { background: var(--color-primary); color: var(--color-white); border-color: transparent; }
.register-btn:hover { background: var(--color-primary-dark); }

/* User dropdown desktop */
.user-dropdown { position: relative; }
.dashboard-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: 999px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}
.dashboard-btn i { font-size: 1.1rem; }
.dashboard-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.user-dropdown-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    background: #fff;
    min-width: 220px;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12), 0 5px 15px rgba(0,0,0,0.05);
    border: 1px solid rgba(0,0,0,0.04);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 1002;
}
.user-dropdown.active .user-dropdown-menu {
    opacity: 1;
    visibility: visible;
}
.user-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: var(--color-text-main);
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s ease;
}
.user-dropdown-menu a:hover { background: var(--color-bg-light); color: var(--color-primary); }
.user-dropdown-menu a i { color: var(--color-secondary); width: 20px; text-align: center; }

/* Dropdown (Desktop) - Enhanced Animation */
.dropdown {
    position: relative;
    height: 100%; /* Ensure full height for hover area */
    display: flex;
    align-items: center;
}

/* Invisible bridge to prevent closing when moving mouse to dropdown */
.dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 15px; /* Bridge gap */
}

.dropdown-content {
    position: absolute;
    top: calc(100% + 10px); /* Slightly detached */
    left: 50%;
    transform: translateX(-50%) translateY(10px) scale(0.98); /* Start lower and smaller */
    background: #ffffff;
    min-width: 240px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.12), 0 5px 15px rgba(0,0,0,0.05); /* Premium shadow */
    border-radius: 12px; /* Modern rounding */
    padding: 8px; /* Inner padding */
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1); /* Snappy and smooth */
    border: 1px solid rgba(0,0,0,0.04);
    z-index: 1001;
    transform-origin: top center;
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0) scale(1);
}

/* Dropdown Items */
.dropdown-content li {
    list-style: none;
}

.dropdown-content li a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    color: var(--color-text-main);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border-radius: 8px; /* Rounded items */
    margin-bottom: 2px;
}

.dropdown-content li a:last-child {
    margin-bottom: 0;
}

.dropdown-content li a:hover {
    background: var(--color-bg-light); /* Subtle grey background */
    color: var(--color-primary);
    transform: translateX(3px); /* Gentle slide */
    box-shadow: none; /* Clean flat hover */
}

.dropdown-content li a i {
    width: 20px;
    text-align: center;
    color: var(--color-secondary);
    font-size: 1rem;
    transition: color 0.2s;
}

.dropdown-content li a:hover i {
    color: var(--color-primary);
}

.dropdown-content li a::after {
    display: none;
}

/* Sidebar Toggle (Default: Hidden) */
.sidebar-toggle {
    display: none !important;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s;
    margin-left: 15px;
}

.sidebar-toggle:hover {
    background: var(--color-bg-light);
}

/* Sidebar Container (Default: Hidden) */
.sidebar {
    display: none !important;
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: #ffffff;
    z-index: 9999;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.15);
    flex-direction: column;
    padding: 25px;
    padding-bottom: 100px; /* espacio para barra de usuario sticky */
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

/* Overlay (Default: Hidden) */
.sidebar-overlay {
    display: none !important;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.4s ease;
}

/* Active States */
.sidebar.active {
    right: 0;
}

.sidebar-overlay.active {
    opacity: 1;
}

/* Sidebar Content Styles */
.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}

.sidebar-title {
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--color-primary);
}

.sidebar-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-light);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.sidebar-close:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
    transform: rotate(90deg);
}

.sidebar-menu {
    display: flex;
    flex-direction: column;
    gap: 15px;
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
    flex: 1;
    overflow-y: auto;
}

.sidebar-link, .sidebar-item > a {
    display: flex;
    align-items: center;
    justify-content: flex-start; /* Align start */
    gap: 15px; /* Gap between icon and text */
    width: 100%;
    padding: 12px 15px;
    font-size: 1.05rem;
    color: #2c3e50;
    font-weight: 600;
    background: transparent;
    border: none;
    cursor: pointer;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.sidebar-link:hover, .sidebar-item > a:hover {
    background-color: var(--color-secondary-light);
    color: var(--color-primary);
}
.sidebar-link, .sidebar-item > a {
    -webkit-tap-highlight-color: transparent;
}
.sidebar-link:focus, .sidebar-item > a:focus {
    outline: none;
    box-shadow: inset 0 0 0 2px var(--color-secondary-light);
}
.sidebar-item.open > .sidebar-link {
    background-color: var(--color-secondary-light);
    color: var(--color-primary);
}

.sidebar-link i, .sidebar-item > a i {
    width: 25px;
    color: var(--color-primary);
    margin-right: 0; /* Handled by gap on parent */
    text-align: center;
    flex-shrink: 0;
}

/* Chevron specific logic */
.chevron {
    margin-left: auto; /* Push to right */
    width: auto !important; /* Reset width constraint if any */
    transition: transform 0.3s;
    font-size: 0.8rem;
}

/* Submenu */
.sidebar-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out;
    background: var(--color-bg-light);
    border-radius: var(--radius-sm);
    margin-top: 5px;
}

.sidebar-item.open .sidebar-submenu {
    max-height: 500px;
}

.sidebar-submenu li a {
    display: flex;
    align-items: center;
    padding: 12px 20px 12px 50px;
    color: var(--color-text-light);
    font-size: 0.95rem;
    transition: color 0.2s;
}

.sidebar-submenu li a:hover {
    color: var(--color-primary);
}

.sidebar-submenu li a i {
    font-size: 0.8em;
    margin-right: 10px;
    width: 20px;
}

.sidebar-item.open .chevron {
    transform: rotate(90deg);
}

/* Sidebar Auth */
.sidebar-auth {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}

.full-width {
    width: 100%;
    display: flex;
    justify-content: center;
}

/* Sidebar user block (mobile) */
.sidebar-user {
    position: sticky;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    background: #ffffff;
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -8px 24px rgba(0,0,0,0.08);
    padding: 12px 16px;
    padding-bottom: max(12px, env(safe-area-inset-bottom));
    border-radius: 0;
    overflow: hidden;
}
.sidebar-user .user-name {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 10px;
}
.sidebar-user .user-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}
.sidebar-user .user-actions.two-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.sidebar-user .user-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 12px;
    min-height: 42px;
    border-radius: 12px;
    font-weight: 700;
    border: 1px solid var(--color-border);
    color: var(--color-primary);
    background: var(--color-bg-light);
    text-decoration: none;
    width: 100%;
}
.sidebar-user .user-actions a.logout { color: #ef4444; border-color: #fecaca; background: #fff5f5; }
.sidebar-user .user-actions a:hover { background: var(--color-secondary-light); }

@media (max-width: 360px) {
    .sidebar-user .user-actions {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 280px) {
    .sidebar-user .user-actions {
        grid-template-columns: 1fr;
    }
}

/* RESPONSIVE LOGIC */
@media (max-width: 992px) {
    .nav-links, .auth-buttons {
        display: none !important;
    }
    
    .sidebar-toggle {
        display: flex !important;
    }
    
    .sidebar {
        display: flex !important;
    }
    
    .sidebar-overlay {
        display: block !important;
        visibility: hidden;
    }
    
    .sidebar-overlay.active {
        visibility: visible;
    }
}