/* OneMRI Clinical Landing Page Styles */

:root {
    /* OneMRI Brand Colors */
    --color-navy: #1a2332;
    --color-navy-light: #2d3748;
    --color-blue: #3b82f6;
    --color-blue-light: #60a5fa;
    --color-blue-lightest: #dbeafe;

    /* Functional Colors */
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-warning: #f59e0b;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-900: #111827;

    /* Typography */
    --font-family: 'Hanken Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%);
    color: var(--color-gray-900);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    max-width: 540px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    padding: var(--spacing-2xl) 0;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-img {
    height: 48px;
    width: auto;
    filter: brightness(0) invert(1); /* Make logo white */
}

/* Main Content */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-lg) 0;
}

/* Card */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.card-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-navy);
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    color: var(--color-gray-600);
    font-size: 0.9375rem;
}

.subtitle strong {
    color: var(--color-navy);
}

/* Forms */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-navy);
}

input[type="text"],
input[type="email"] {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: all 0.2s ease;
}

input[type="text"]:focus,
input[type="email"]:focus {
    outline: none;
    border-color: var(--color-blue);
    box-shadow: 0 0 0 3px var(--color-blue-lightest);
}

input[type="text"]::placeholder,
input[type="email"]::placeholder {
    color: var(--color-gray-300);
}

.otp-input {
    text-align: center;
    font-size: 1.5rem;
    letter-spacing: 0.5em;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.help-text {
    font-size: 0.8125rem;
    color: var(--color-gray-600);
}

.warning-text {
    color: var(--color-warning);
    font-weight: 500;
}

/* Buttons */
.btn {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-light) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-navy);
    border: 2px solid var(--color-gray-200);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--color-gray-300);
    background: var(--color-gray-50);
}

.btn-text {
    background: transparent;
    color: var(--color-gray-600);
    padding: var(--spacing-sm);
}

.btn-text:hover:not(:disabled) {
    color: var(--color-navy);
    background: var(--color-gray-50);
}

.btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error Message */
.error-message {
    padding: var(--spacing-md);
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: 0.875rem;
}

/* Success Card */
.success-card .card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.success-icon {
    animation: scaleIn 0.4s ease-out;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

.study-info {
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 500;
    color: var(--color-gray-600);
    font-size: 0.875rem;
}

.info-value {
    font-weight: 600;
    color: var(--color-navy);
    font-size: 0.875rem;
}

.redirect-text {
    text-align: center;
    color: var(--color-gray-600);
    font-size: 0.875rem;
    margin-top: var(--spacing-lg);
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8125rem;
}

.footer p {
    margin-bottom: var(--spacing-sm);
}

.footer-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--color-white);
}

.separator {
    color: rgba(255, 255, 255, 0.4);
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: var(--spacing-md);
    }

    .card {
        padding: var(--spacing-lg);
    }

    .header {
        padding: var(--spacing-lg) 0;
    }

    .logo h1 {
        font-size: 1.5rem;
    }
}