/* ========================================
   BizGrow Platform - Main Stylesheet
   Color Scheme: Blue theme
   ======================================== */

:root {
    --primary: #1e3a8a; /* Royal Blue */
    --primary-light: #3b82f6; /* Sky Blue */
    --primary-lighter: #93c5fd; /* Light Blue */
    --primary-dark: #1e40af; /* Navy Blue */
    --secondary: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1f2937;
    --light: #f3f4f6;
    --white: #ffffff;
    --text: #374151;
    --border: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px var(--shadow);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    color: var(--white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s;
}

.nav-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    margin: 3px 0;
    transition: 0.3s;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
}

.language-switcher button {
    padding: 0.3rem 0.8rem;
    border: 1px solid var(--white);
    background: transparent;
    color: var(--white);
    cursor: pointer;
    border-radius: 3px;
    transition: 0.3s;
}

.language-switcher button:hover,
.language-switcher button.active {
    background: var(--white);
    color: var(--primary);
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

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

.btn-secondary:hover {
    background: #0284c7;
}

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

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

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

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%231e3a8a" width="1200" height="600"/><g fill-opacity="0.1"><circle fill="%23fff" cx="100" cy="100" r="80"/><circle fill="%23fff" cx="1000" cy="500" r="100"/><circle fill="%23fff" cx="600" cy="300" r="60"/></g></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Features Section
   ======================================== */

.features {
    padding: 4rem 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 6px var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px var(--shadow);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-light);
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

/* ========================================
   Cards
   ======================================== */

.card {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow);
    margin-bottom: 1.5rem;
}

.card-header {
    border-bottom: 2px solid var(--border);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-header h2, .card-header h3 {
    color: var(--primary);
}

.card-body {
    padding: 1rem 0;
}

/* ========================================
   Forms
   ======================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 5px;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* ========================================
   Dashboard Layout
   ======================================== */

.dashboard {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

.sidebar {
    background: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px var(--shadow);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 0.5rem;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    color: var(--text);
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--primary-light);
    color: var(--white);
}

.sidebar-menu i {
    width: 20px;
}

.dashboard-content {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 4px 6px var(--shadow);
}

/* ========================================
   Stats Cards
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 4px 6px var(--shadow);
}

.stat-icon {
    font-size: 2.5rem;
    opacity: 0.8;
}

.stat-info h3 {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.stat-info p {
    opacity: 0.9;
    font-size: 0.9rem;
}

/* ========================================
   Tables
   ======================================== */

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    background: var(--primary-light);
    color: var(--white);
    font-weight: 600;
}

.table tr:hover {
    background: var(--light);
}

/* ========================================
   Messages/Chat
   ======================================== */

.chat-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 1rem;
    height: 600px;
}

.chat-list {
    background: var(--white);
    border-radius: 10px;
    overflow-y: auto;
    border: 1px solid var(--border);
}

.chat-item {
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.3s;
}

.chat-item:hover,
.chat-item.active {
    background: var(--primary-lighter);
}

.chat-window {
    background: var(--white);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
}

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
}

.message {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.5rem;
}

.message.sent {
    justify-content: flex-end;
}

.message-content {
    background: var(--light);
    padding: 0.75rem 1rem;
    border-radius: 10px;
    max-width: 70%;
}

.message.sent .message-content {
    background: var(--primary-light);
    color: var(--white);
}

.chat-input {
    padding: 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
}

.chat-input input {
    flex: 1;
}

/* ========================================
   Product Grid
   ======================================== */

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 6px var(--shadow);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px var(--shadow);
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--light);
}

.product-info {
    padding: 1rem;
}

.product-title {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.product-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--success);
    margin-bottom: 1rem;
}

/* ========================================
   Modal
   ======================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text);
}

/* ========================================
   Alerts
   ======================================== */

.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #3b82f6;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3, .footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-light);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ========================================
   Auth Pages
   ======================================== */

.auth-container {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.auth-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 8px 20px var(--shadow);
    max-width: 450px;
    width: 100%;
}

.auth-card h2 {
    color: var(--primary);
    text-align: center;
    margin-bottom: 2rem;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: var(--primary);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

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

    .sidebar {
        position: static;
    }

    .chat-container {
        grid-template-columns: 1fr;
        height: auto;
    }

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

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

    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

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

/* ========================================
   Utilities
   ======================================== */

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.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; }

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}