@import url('https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,300;0,400;0,700;1,300;1,400;1,700&display=swap');

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

body {
    font-family: var(--font-family);
    font-weight: 300; /* Cuerpos de texto: Lato - Light */
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .page-title {
    font-weight: 600; /* Titulares: Lato - SemiBold */
}

/* CSS Variables - Medical Professional Theme */
:root {
    /* Medical Color Palette (Piuquén Brand Guidelines) */
    --primary-color: #4e7599;      /* Dark Blue P 111-13 c */
    --primary-dark: #37536d;       /* Darker version for hovers/headers */
    --primary-light: #75b0d6;      /* Light Blue P 112-12 c */
    --secondary-color: #64748B;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #DC2626;

    /* Piuquén Brand Accent Colors */
    --accent-orange: #eaa85e;      /* Orange P 24-5 c */
    --accent-sand: #f3d08e;        /* Sand/Yellow P 14-4 c */
    --brand-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 40%, var(--accent-sand) 75%, var(--accent-orange) 100%);

    /* Neutral Colors */
    --background-color: #F8FAFC;
    --surface-color: #FFFFFF;
    --surface-secondary: #F1F5F9;
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;

    /* Enhanced Shadows (with Piuquén Dark Blue hue) */
    --shadow-sm: 0 1px 2px 0 rgb(78 117 153 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(78 117 153 / 0.1), 0 2px 4px -2px rgb(78 117 153 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(78 117 153 / 0.1), 0 4px 6px -4px rgb(78 117 153 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(78 117 153 / 0.1), 0 8px 10px -6px rgb(78 117 153 / 0.1);

    /* Typography */
    --font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;

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

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Screen Management */
.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: flex;
}

/* Login screen needs special handling */
#loginScreen.active {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

/* Login Styles - Enhanced Medical Design */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    background: var(--brand-gradient);
    padding: var(--spacing-4);
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    pointer-events: none;
}

.login-card {
    background: var(--surface-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-8);
    width: 100%;
    max-width: 420px;
    text-align: center;
    position: relative;
    z-index: 1;
    border: 1px solid var(--border-light);
    backdrop-filter: blur(10px);
}

.login-header {
    margin-bottom: 2rem;
}

.logo-container {
    margin-bottom: 1.5rem;
    width: 100%;
}

.logo {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.login-form {
    text-align: left;
}

.login-button-container {
    text-align: center;
    margin-top: 2rem;
}

.btn-login {
    min-width: 200px;
    font-size: 1rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

.btn-login:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.form-group {
    margin-bottom: var(--spacing-5);
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-base);
    background: var(--surface-color);
    font-weight: 500;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(78, 117, 153, 0.1);
    transform: translateY(-1px);
}

.form-group input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.password-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-container input {
    padding-right: 3rem;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    background: rgba(37, 99, 235, 0.1);
}

.password-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.password-toggle:hover .fa-eye,
.password-toggle:hover .fa-eye-slash {
    color: var(--primary-color);
}

.error-message {
    background: #fef2f2;
    color: var(--error-color);
    padding: 0.75rem;
    border-radius: 8px;
    border: 1px solid #fecaca;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* App Layout - Enhanced Medical Design */
.app-container {
    display: flex;
    min-height: 100vh;
    background: var(--background-color);
}

/* Sidebar - Compact Professional Design */
.sidebar {
    width: 280px;
    background: var(--surface-color);
    border-right: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width var(--transition-base), box-shadow var(--transition-base), left var(--transition-base);
    overflow-x: hidden;
    white-space: nowrap;
    z-index: 100;
}

@media (min-width: 1025px) {
    .sidebar {
        width: 70px;
    }

    .sidebar:hover {
        width: 280px;
        box-shadow: var(--shadow-lg);
    }

    .sidebar:not(:hover) .sidebar-logo {
        opacity: 0;
    }

    .sidebar:not(:hover) .sidebar-nav a span {
        opacity: 0;
    }
}

.sidebar-header {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-light);
    background: linear-gradient(135deg, var(--surface-secondary) 0%, var(--surface-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100px;
    max-height: none;
}

.sidebar-logo {
    width: 100%;
    height: auto;
    max-height: 120px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(78, 117, 153, 0.1));
    transition: opacity var(--transition-base);
}

.sidebar-nav {
    padding: var(--spacing-3) 0;
    flex: 1;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-nav li {
    margin-bottom: var(--spacing-1);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: var(--spacing-3) var(--spacing-4);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-base);
    border-radius: var(--radius-lg);
    margin: var(--spacing-1);
    font-weight: 500;
    font-size: var(--font-size-sm);
    border-left: 3px solid transparent;
    overflow: hidden;
}

.sidebar-nav a span {
    transition: opacity var(--transition-base);
}

.sidebar-nav a:hover {
    background: var(--surface-secondary);
    color: var(--primary-color);
    transform: translateX(4px);
}

.sidebar-nav a.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-left-color: var(--primary-light);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.nav-icon {
    margin-right: var(--spacing-3);
    font-size: var(--font-size-base);
    width: 18px;
    text-align: center;
}

/* Main Content - Enhanced Design */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--background-color);
}

.app-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-4) var(--spacing-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
}

.page-title {
    color: var(--text-primary);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    font-family: var(--font-family);
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-6);
    gap: var(--spacing-4);
}

.page-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.user-profile-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-lg);
    background: var(--surface-secondary);
    border: 1px solid var(--border-light);
}

.user-fullname {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    font-family: var(--font-family);
}

.app-main {
    flex: 1;
    padding: var(--spacing-8);
    background: var(--background-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

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

    100% {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    color: white;
    font-weight: 500;
}