/*
 * Kompass AI Solutions - Main Stylesheet
 * Minimal Bootstrap-based design with sidebar navigation
 * Color Scheme: Blue (#1e3a8a primary, #3b82f6 accent)
 */

/* ==================== CSS Variables ==================== */
:root {
    /* Primary Colors */
    --primary-dark: #1e3a8a;
    --primary-blue: #2563eb;
    --primary-light: #3b82f6;
    --accent-blue: #60a5fa;

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Spacing */
    --sidebar-width: 260px;
    --topbar-height: 70px;
    --border-radius: 8px;
    --box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-family: 'Ubuntu', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

/* ==================== Global Resets ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--gray-800);
    background-color: var(--gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-light);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.btn-outline {
    background-color: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--white);
}

.btn-outline:hover {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-success {
    background-color: var(--success);
    color: var(--white);
}

.btn-success:hover {
    background-color: #059669;
    color: var(--white);
}

.btn-danger {
    background-color: var(--danger);
    color: var(--white);
}

.btn-danger:hover {
    background-color: #dc2626;
    color: var(--white);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ==================== Sidebar Navigation ==================== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--white);
    border-right: 1px solid var(--gray-200);
    overflow-y: auto;
    transition: transform var(--transition-normal);
    z-index: 1000;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-logo {
    height: 45px;
    width: auto;
}

.sidebar-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-dark);
    margin: 0;
}

.sidebar-nav {
    padding: 1rem 0;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.5rem;
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-fast);
    gap: 0.75rem;
    font-weight: var(--font-weight-medium);
}

.sidebar-nav-item:hover {
    background-color: var(--gray-50);
    color: var(--primary-blue);
    border-left: 3px solid var(--primary-blue);
    padding-left: calc(1.5rem - 3px);
}

.sidebar-nav-item.active {
    background-color: var(--gray-100);
    color: var(--primary-blue);
    border-left: 3px solid var(--primary-blue);
    padding-left: calc(1.5rem - 3px);
}

.sidebar-nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-divider {
    height: 1px;
    background-color: var(--gray-200);
    margin: 1rem 0;
}

.sidebar-footer {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    border-top: 1px solid var(--gray-200);
    background-color: var(--white);
}

/* Mobile Sidebar Toggle */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 1001;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    padding: 0.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

/* ==================== Main Content Area ==================== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

.content-wrapper {
    padding: 2rem;
    max-width: 1400px;
}

/* ==================== Top Navigation Bar ==================== */
.topbar {
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.topbar-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--gray-900);
    margin: 0;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ==================== Cards ==================== */
.card {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    margin-bottom: 1.5rem;
    transition: box-shadow var(--transition-fast);
}

.card:hover {
    box-shadow: var(--box-shadow-lg);
}

.card-header {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.card-body {
    color: var(--gray-700);
}

.card-footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* ==================== Forms ==================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: var(--font-weight-medium);
    color: var(--gray-700);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
}

.form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.form-error {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* ==================== Hero Section ==================== */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== Feature Grid ==================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

@media (max-width: 992px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    color: var(--white);
    font-size: 1.5rem;
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--gray-900);
}

.feature-description {
    color: var(--gray-600);
    line-height: 1.6;
}

/* ==================== Alerts ==================== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info);
}

/* ==================== Badges ==================== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    border-radius: 12px;
    line-height: 1;
}

.badge-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.badge-success {
    background-color: var(--success);
    color: var(--white);
}

.badge-danger {
    background-color: var(--danger);
    color: var(--white);
}

.badge-warning {
    background-color: var(--warning);
    color: var(--white);
}

/* ==================== Loading Spinner ==================== */
.spinner {
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

/* ==================== Footer ==================== */
.footer {
    background-color: var(--white);
    border-top: 1px solid var(--gray-200);
    padding: 2rem;
    margin-top: 4rem;
    text-align: center;
    color: var(--gray-600);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 0;
    }

    .sidebar {
        transform: translateX(-100%);
    }

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

    .sidebar-toggle {
        display: block;
    }

    .sidebar-overlay.show {
        display: block;
    }

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

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .content-wrapper {
        padding: 1rem;
    }

    .topbar {
        padding: 1rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== Utility Classes ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-blue); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--gray-500); }

.bg-primary { background-color: var(--primary-blue); }
.bg-light { background-color: var(--gray-50); }
.bg-white { background-color: var(--white); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.rounded { border-radius: var(--border-radius); }
.shadow { box-shadow: var(--box-shadow); }
.shadow-lg { box-shadow: var(--box-shadow-lg); }