/* Light Theme Variables */
:root {
    --bg-primary: #f8fafc; /* page background */
    --bg-secondary: #f1f5f9; /* sidebar / header */
    --bg-card: #ffffff; /* cards and panels */
    --bg-hover: #eef2f7; /* hover states */
    --text-primary: #0f172a; /* main text */
    --text-secondary: #334155; /* secondary text */
    --text-muted: #6b7280; /* muted text */
    --border-color: #e6e9ee; /* light borders */
    --accent-blue: #2563eb;
    --accent-green: #059669;
    --accent-red: #dc2626;
    --accent-orange: #f97316;
    --accent-purple: #7c3aed;
}

html {
    font-size: 14px;
    height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 14px;
    }
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    height: 100%;
    overflow-x: hidden;
}

/* Layout Structure */
.dashboard-wrapper {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar Styles */
.sidebar {
    width: 200px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

    .sidebar-brand h5 {
        font-size: 1rem;
        font-weight: 600;
        margin: 0;
        color: var(--text-primary);
    }

    .sidebar-brand p {
        font-size: 0.75rem;
        color: var(--text-muted);
        margin: 0.25rem 0 0 0;
    }

.sidebar-section {
    padding: 1.5rem 0 0.5rem 1rem;
}

.sidebar-section-title {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.sidebar-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav-item {
    margin-bottom: 0.25rem;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    padding: 0.625rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    font-size: 0.875rem;
    border-left: 3px solid transparent;
}

    .sidebar-nav-link:hover {
        background-color: var(--bg-hover);
        color: var(--text-primary);
    }

    .sidebar-nav-link.active {
        background-color: var(--bg-hover);
        color: var(--text-primary);
        border-left-color: var(--accent-blue);
    }

    .sidebar-nav-link i {
        width: 1.25rem;
        margin-right: 0.75rem;
        font-size: 0.875rem;
    }

/* Main Content Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Top Header */
.top-header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 60px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-title h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.week-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-card);
    border-radius: 0.375rem;
    font-size: 0.8rem;
}

    .week-indicator i {
        color: var(--accent-orange);
    }

    .week-indicator span {
        color: var(--text-secondary);
    }

.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Period Toggle Buttons */
.period-toggle {
    display: flex;
    background-color: var(--bg-card);
    border-radius: 0.375rem;
    padding: 0.25rem;
    gap: 0.25rem;
}

    .period-toggle .btn-period {
        padding: 0.375rem 0.875rem;
        font-size: 0.8rem;
        border: none;
        background: transparent;
        color: var(--text-secondary);
        border-radius: 0.25rem;
        transition: all 0.2s;
        cursor: pointer;
        font-weight: 500;
    }

        .period-toggle .btn-period:hover {
            color: var(--text-primary);
            background-color: var(--bg-hover);
        }

        .period-toggle .btn-period.active {
            background-color: var(--accent-blue);
            color: white;
        }

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background-color: var(--bg-card);
    border-radius: 0.375rem;
}

    .user-info i {
        color: var(--text-muted);
    }

    .user-info span {
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

.btn-logout {
    padding: 0.375rem 0.875rem;
    font-size: 0.8rem;
    background-color: transparent;
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    border-radius: 0.375rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

    .btn-logout:hover {
        background-color: var(--accent-red);
        color: white;
    }

.btn-login {
    padding: 0.375rem 0.875rem;
    font-size: 0.8rem;
    background-color: var(--accent-blue);
    border: 1px solid var(--accent-blue);
    color: white;
    border-radius: 0.375rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    text-decoration: none;
}

    .btn-login:hover {
        background-color: #2563eb;
        color: white;
    }

/* Content Area */
.content-area {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    background-color: var(--bg-primary);
}


/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -200px;
        z-index: 1000;
        transition: left 0.3s;
    }

        .sidebar.show {
            left: 0;
        }

    .top-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: stretch;
    }

    .header-left,
    .header-right {
        flex-direction: column;
        align-items: stretch;
    }

    .period-toggle {
        width: 100%;
    }
}

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

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

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

    ::-webkit-scrollbar-thumb:hover {
        background: var(--bg-hover);
    }

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem rgba(59, 130, 246, 0.5);
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--text-muted);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}