:root {
    --primary-color: #1a75ff; /* vibrant blue */
    --primary-dark: #0055cc;
    --primary-light: #4d94ff;
    --secondary-color: #d9a5b3; /* soft rose/mauve */
    --secondary-dark: #b5889a;
    --secondary-light: #f4d8e1;
    --accent-color: #ffc65c; /* warm golden yellow */
    --text-primary: #2e2236;
    --text-secondary: #5d4e69;
    --text-light: #ffffff;
    --bg-light: #f9f6fc;
    --bg-dark: #3d2e4a;
    --border-light: #efe5f7;
    --border-dark: #8c7a9c;
    --transition-speed: 0.3s;
}

body {
    font-family: 'Nunito', 'Segoe UI', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Navbar customization */
.navbar-dark {
    box-shadow: 0 2px 10px rgba(43, 177, 194, 0.08);
    background: var(--primary-color) !important;
}

.navbar-dark .navbar-brand {
    display: flex;
    align-items: center;
    font-weight: 800;
    color: var(--text-light) !important;
    letter-spacing: 1px;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.navbar-dark .nav-link, .navbar-dark .dropdown-item {
    color: var(--text-light) !important;
    font-weight: 600;
}

.navbar-dark .nav-link.active, .navbar-dark .dropdown-item.active {
    color: var(--accent-color) !important;
}

.navbar-dark .nav-link:hover, .navbar-dark .dropdown-item:hover {
    color: var(--accent-color) !important;
    background: rgba(255,179,87,0.07);
}

.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: var(--text-light) !important;
    font-weight: 600;
    transition: background var(--transition-speed), border var(--transition-speed);
}

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
    color: var(--text-light) !important;
}

.btn-outline-primary {
    color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    background: transparent !important;
    font-weight: 600;
}

.btn-outline-primary:hover, .btn-outline-primary:focus {
    background-color: var(--primary-light) !important;
    color: var(--text-light) !important;
    border-color: var(--primary-dark) !important;
}

.btn-secondary {
    background-color: var(--secondary-color) !important;
    border-color: var(--secondary-color) !important;
    color: var(--text-light) !important;
    font-weight: 600;
}

.btn-secondary:hover, .btn-secondary:focus {
    background-color: var(--secondary-dark) !important;
    border-color: var(--secondary-dark) !important;
    color: var(--text-light) !important;
}

.btn-accent, .btn-warning {
    background-color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
    color: var(--text-light) !important;
}

.btn-accent:hover, .btn-warning:hover {
    background-color: #ff9800 !important;
    border-color: #ff9800 !important;
}

/* Hero section */
.hero {
    background: linear-gradient(120deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-light);
    padding: 100px 0;
    text-align: center;
    box-shadow: 0 4px 24px rgba(43,177,194,0.08);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 2rem auto;
}

/* Features */
.feature-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(43,177,194,0.10);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    height: 100%;
    background: var(--bg-light);
}

.feature-card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 8px 32px rgba(43,177,194,0.13);
}

.feature-card .card-body {
    padding: 2rem;
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Professional cards */
.professional-card {
    border: none;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-speed);
}

.professional-card:hover {
    transform: translateY(-5px);
}

.professional-card img {
    height: 250px;
    object-fit: cover;
}

.professional-info {
    padding: 1.5rem;
}

.professional-specialty {
    color: var(--primary-color);
    font-weight: 600;
}

/* Form elements */
.form-control:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 0.25rem rgba(106, 147, 203, 0.25);
}

/* Auth pages */
.auth-card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    margin: 2rem auto;
}

.auth-card .card-header {
    background-color: var(--primary-color);
    color: var(--text-light);
    text-align: center;
    padding: 1.5rem;
    border-bottom: none;
    border-radius: 10px 10px 0 0;
}

.auth-card .card-body {
    padding: 2rem;
}

/* Footer */
footer {
    background-color: var(--bg-dark);
    color: var(--text-light);
}

footer a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-speed);
}

footer a:hover {
    color: var(--secondary-color);
    text-decoration: none;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}