/* ========== VARIABLES ========== */
:root {
    --primary-color: #0088cc;
    --primary-light: rgba(0, 136, 204, 0.1);
    --primary-dark: #006699;
    --light-bg: #ffffff;
    --light-bg-alt: #f8f9fa;
    --dark-bg: #18222d;
    --dark-bg-alt: #212e3c;
    --light-text: #2c2c2c;
    --light-text-secondary: #6c757d;
    --dark-text: #e9ecef;
    --dark-text-secondary: #adb5bd;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --border-radius: 12px;
    --transition: all 0.35s cubic-bezier(0.165, 0.84, 0.44, 1);
    --shadow-light: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.25);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    transition: var(--transition);
}

body {
    background-color: var(--light-bg-alt);
    color: var(--light-text);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

body.dark-mode {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

/* ========== SIDEBAR STYLES ========== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    background-color: var(--light-bg);
    box-shadow: var(--shadow-light);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    overflow-y: auto;
}

.dark-mode .sidebar {
    background-color: var(--dark-bg-alt);
    box-shadow: var(--shadow-dark);
}

.sidebar.collapsed {
    width: 80px;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--light-bg-alt);
}

.dark-mode .sidebar-header {
    border-bottom-color: var(--dark-bg);
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--light-text);
    font-weight: 700;
    font-size: 20px;
}

.dark-mode .logo {
    color: var(--dark-text);
}

.logo img {
    height: 30px;
    margin-right: 10px;
}

.sidebar.collapsed .logo span {
    display: none;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--light-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.dark-mode .sidebar-toggle {
    color: var(--dark-text);
}

.sidebar-toggle:hover {
    color: var(--primary-color);
}

.sidebar-toggle svg {
    transition: transform 0.3s ease;
}

.sidebar.collapsed .sidebar-toggle svg {
    transform: rotate(180deg);
}

.sidebar-nav {
    padding: 20px 0;
    flex-grow: 1;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav ul li {
    margin-bottom: 5px;
}

.sidebar-nav ul li.sidebar-divider {
    padding: 20px 20px 10px;
    margin-top: 10px;
}

.sidebar-nav ul li.sidebar-divider:first-child {
    margin-top: 0;
}

.sidebar-nav ul li.sidebar-divider span {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--light-text-secondary);
    letter-spacing: 0.5px;
}

.dark-mode .sidebar-nav ul li.sidebar-divider span {
    color: var(--dark-text-secondary);
}

.sidebar.collapsed .sidebar-nav ul li.sidebar-divider {
    padding: 10px 5px;
    text-align: center;
}

.sidebar.collapsed .sidebar-nav ul li.sidebar-divider span {
    display: none;
}

.sidebar.collapsed .sidebar-nav ul li.sidebar-divider::after {
    content: '•';
    display: block;
    color: var(--light-text-secondary);
}

.sidebar-nav ul li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--light-text);
    text-decoration: none;
    border-radius: 8px;
    margin: 0 10px;
    transition: var(--transition);
}

.dark-mode .sidebar-nav ul li a {
    color: var(--dark-text);
}

.sidebar-nav ul li a:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.sidebar-nav ul li.active a {
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
}

.sidebar-nav ul li a svg {
    margin-right: 15px;
    flex-shrink: 0;
}

.sidebar.collapsed .sidebar-nav ul li a span {
    display: none;
}

.sidebar.collapsed .sidebar-nav ul li a {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .sidebar-nav ul li a svg {
    margin-right: 0;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--light-bg-alt);
}

.dark-mode .sidebar-footer {
    border-top-color: var(--dark-bg);
}

.sidebar-footer a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--light-text);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
}

.dark-mode .sidebar-footer a {
    color: var(--dark-text);
}

.sidebar-footer a:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.sidebar-footer a svg {
    margin-right: 15px;
    flex-shrink: 0;
}

.sidebar.collapsed .sidebar-footer a {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .sidebar-footer a span {
    display: none;
}

.sidebar.collapsed .sidebar-footer a svg {
    margin-right: 0;
}

/* ========== MAIN CONTENT ========== */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.main-content {
    margin-left: 280px;
    padding: 20px;
    flex: 1;
    min-width: 0;
    overflow-x: hidden;
    transition: var(--transition);
}

body.sidebar-collapsed .main-content {
    margin-left: 80px;
}

/* ========== TOP BAR ========== */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    margin: -20px -20px 20px -20px;
    background-color: var(--light-bg);
    border-bottom: 1px solid var(--light-bg-alt);
}

.dark-mode .top-bar {
    background-color: var(--dark-bg-alt);
    border-bottom-color: var(--dark-bg);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    cursor: pointer;
    font-size: 24px;
}

.dark-mode .menu-toggle {
    color: var(--dark-text);
}

.top-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-bg-alt);
    color: var(--light-text);
    transition: var(--transition);
}

.dark-mode .theme-toggle {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

.theme-toggle:hover {
    transform: rotate(15deg);
    background-color: var(--primary-light);
    color: var(--primary-color);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 18px;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.username {
    font-weight: 600;
    font-size: 14px;
    color: var(--light-text);
}

.dark-mode .username {
    color: var(--dark-text);
}

.status {
    font-size: 12px;
    color: var(--light-text-secondary);
}

.dark-mode .status {
    color: var(--dark-text-secondary);
}

/* ========== CONTENT STYLES ========== */
.dashboard-content {
    padding: 20px;
}

.content-header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.content-header p {
    color: var(--light-text-secondary);
    margin-bottom: 0;
}

.dark-mode .content-header p {
    color: var(--dark-text-secondary);
}

/* ========== SIDEBAR OVERLAY (Mobile) ========== */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    body.sidebar-collapsed .main-content {
        margin-left: 0;
    }
}

/* ========== LANGUAGE SELECTOR ========== */
.lang-selector {
    position: relative;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--light-bg-alt);
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    font-weight: 500;
    color: var(--light-text);
}

.dark-mode .lang-toggle {
    background: var(--dark-bg);
    color: var(--dark-text);
}

.lang-toggle:hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

.lang-flag {
    font-size: 16px;
}

.lang-code {
    font-weight: 600;
}

.lang-toggle svg {
    transition: transform 0.3s ease;
}

.lang-toggle.active svg {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: fixed;
    background: var(--light-bg);
    border: 1px solid var(--light-bg-alt);
    border-radius: 8px;
    box-shadow: var(--shadow-light);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 9999;
}

.dark-mode .lang-dropdown {
    background: var(--dark-bg-alt);
    border-color: var(--dark-bg);
    box-shadow: var(--shadow-dark);
}

.lang-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
    color: var(--light-text);
    font-size: 14px;
}

.dark-mode .lang-option {
    color: var(--dark-text);
}

.lang-option:hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

.lang-option.active {
    background: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
}

.lang-option:first-child {
    border-radius: 8px 8px 0 0;
}

.lang-option:last-child {
    border-radius: 0 0 8px 8px;
}