:root {
    --primary: #112240;
    --accent: #f59e0b;
    --accent-hover: #d97706;
    --bg-light: #f8fafc;
    --text-dark: #0f172a;
    --text-muted: #475569;
    --radius: 8px;
    --success: #22c55e;
    --warning: #eab308;
    --danger: #ef4444;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
}

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

body {
    background-color: var(--bg-light);
    color: var(--text-dark);
    font-family: 'Inter', sans-serif;
    line-height: 1.5;
}

.navbar {
    background-color: var(--primary);
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar .logo {
    color: #ffffff;
    font-weight: 700;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar .nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.navbar .nav-links a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.navbar .btn-login {
    background-color: var(--accent);
    color: var(--primary) !important;
    padding: 8px 18px;
    border-radius: var(--radius);
    font-weight: 600;
}

.navbar .btn-login:hover {
    background-color: var(--accent-hover);
}

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
    color: #ffffff;
    padding: 120px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: #ffffff;
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    font-size: 1.25rem;
    color: #f8e6c9;
    max-width: 600px;
    margin: 0 auto 30px auto;
    line-height: 1.6;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-hero {
    background-color: var(--accent);
    color: var(--primary);
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
}

.btn-hero:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

.about-section {
    text-align: center;
    max-width: 800px;
}

.about-section h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary);
}

.about-section p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 70px);
    padding: 20px;
}

.login-card {
    background: #ffffff;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
    width: 100%;
    max-width: 420px;
}

.login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.login-logo h2 {
    color: var(--primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.login-logo p {
    color: var(--gray-400);
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-dark);
    transition: all 0.3s ease;
    background-color: var(--gray-100);
}

.form-group input:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.btn-login-submit {
    width: 100%;
    background-color: var(--primary);
    color: #ffffff;
    padding: 14px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn-login-submit:hover {
    background-color: #1e3a8a;
}

.login-error {
    display: none;
    background-color: #fef2f2;
    color: var(--danger);
    padding: 12px;
    border-radius: var(--radius);
    text-align: center;
    font-size: 0.9rem;
    margin-top: 15px;
    border: 1px solid #fca5a5;
}

.login-error.show {
    display: block;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-success { background-color: #dcfce7; color: #15803d; }
.badge-warning { background-color: #fef9c3; color: #a16207; }
.badge-danger { background-color: #fee2e2; color: #b91c1c; }

.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 2000;
}

.toast {
    background: #ffffff;
    color: var(--text-dark);
    padding: 16px 24px;
    border-radius: var(--radius);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 4px solid var(--primary);
    animation: toastIn 0.3s ease forwards;
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.info { border-left-color: var(--accent); }

.toast-out {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}