@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

/* ========== CSS VARIABLES ========== */
:root {
    /* Colors from legacy design */
    --primary-blue: #395886;
    --secondary-blue: #5784ba;
    --light-blue: #31558a;
    --background: #F0F3FA;
    --text-dark: #2c3e50;
    --text-light: #F0F3FA;
    --white: #ffffff;
    --error: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
    
    /* Gradients */
    --gradient-primary: linear-gradient(90deg, #31558a, #5784ba);
    --gradient-hover: linear-gradient(90deg, #395886, #6694ca);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 6px 15px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
    
    /* Border radius */
    --radius-sm: 10px;
    --radius-md: 20px;
    --radius-lg: 25px;
    --radius-xl: 30px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
}

/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

.hidden {
    display: none !important;
}

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ========== BUTTONS ========== */
.btn {
    padding: 12px 32px;
    border: none;
    border-radius: var(--radius-lg);
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

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

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

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

.btn-block {
    width: 100%;
}

/* ========== CARDS ========== */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.card-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
}

/* ========== FORMS ========== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-dark);
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-family: 'Poppins', sans-serif;
    font-size: 15px;
    background-color: var(--background);
    color: var(--text-dark);
    outline: none;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    border-color: var(--primary-blue);
}

.form-input::placeholder {
    color: #95a5a6;
}

/* Dark form inputs (for blue backgrounds) */
.form-input-light {
    background-color: var(--text-light);
    color: var(--primary-blue);
}

.form-input-light::placeholder {
    color: var(--primary-blue);
    opacity: 0.6;
}

.form-error {
    color: var(--error);
    font-size: 14px;
    margin-top: var(--spacing-xs);
}

.form-success {
    color: var(--success);
    font-size: 14px;
    margin-top: var(--spacing-xs);
}

/* ========== ALERTS ========== */
.alert {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 15px;
}

.alert-error {
    background-color: #fadbd8;
    color: #c0392b;
    border-left: 4px solid var(--error);
}

.alert-success {
    background-color: #d5f4e6;
    color: #1e8449;
    border-left: 4px solid var(--success);
}

.alert-info {
    background-color: #d6eaf8;
    color: #21618c;
    border-left: 4px solid var(--secondary-blue);
}

/* ========== LOADING SPINNER ========== */
.loading-spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--white);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 24px;
        --spacing-xl: 32px;
    }
    
    .btn {
        padding: 10px 24px;
        font-size: 14px;
    }
}