/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #4a4a4a;
    --accent-color: #2c5f7c;
    --accent-light: #4a89a8;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --border-color: #e1e4e8;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;

    /* Spacing Scale */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 5rem;
    --spacing-xl: 8rem;

    /* Fonts */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
}

body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--white);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.navbar .container {
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
    color: var(--white);
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.loading-message {
    font-size: 1rem;
    margin-top: 1rem;
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    max-width: 400px;
    font-size: 0.9375rem;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-success {
    background-color: #28a745;
}

.toast-error {
    background-color: #dc3545;
}

.toast-info {
    background-color: var(--accent-color);
}

/* Form Errors */
.form-error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
}

input.error,
textarea.error,
select.error {
    border-color: #dc3545;
}