/* ===================================
   TCM GMP Production System - Main Styles
   =================================== */

/* CSS Variables - Design System */
:root {
    /* Primary Colors - Professional Medical/Pharmaceutical Theme */
    --color-primary: hsl(210, 85%, 48%);
    --color-primary-light: hsl(210, 85%, 58%);
    --color-primary-dark: hsl(210, 85%, 38%);
    --color-primary-alpha: hsla(210, 85%, 48%, 0.1);

    /* Secondary Colors - TCM Herbal Green */
    --color-secondary: hsl(145, 60%, 45%);
    --color-secondary-light: hsl(145, 60%, 55%);
    --color-secondary-dark: hsl(145, 60%, 35%);

    /* Accent Colors */
    --color-accent: hsl(35, 90%, 55%);
    --color-accent-light: hsl(35, 90%, 65%);

    /* Neutral Colors */
    --color-background: hsl(220, 20%, 98%);
    --color-surface: hsl(0, 0%, 100%);
    --color-surface-hover: hsl(220, 20%, 96%);
    --color-border: hsl(220, 15%, 88%);
    --color-border-light: hsl(220, 15%, 93%);

    /* Text Colors */
    --color-text-primary: hsl(220, 20%, 15%);
    --color-text-secondary: hsl(220, 15%, 45%);
    --color-text-tertiary: hsl(220, 10%, 60%);
    --color-text-inverse: hsl(0, 0%, 100%);

    /* Status Colors */
    --color-success: hsl(145, 60%, 45%);
    --color-warning: hsl(35, 90%, 55%);
    --color-error: hsl(0, 70%, 55%);
    --color-info: hsl(210, 85%, 48%);

    /* 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);
    --shadow-glow: 0 0 20px rgba(33, 150, 243, 0.3);

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

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

    /* Layout Dimensions */
    --header-height: 80px;

    /* Typography */
    --font-family: 'Inter', -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: 2rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* ===================================
   Global Resets & Base Styles
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background);
    overflow-x: hidden;
}

/* ===================================
   Login Page Styles
   =================================== */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg,
            hsl(210, 85%, 95%) 0%,
            hsl(145, 60%, 95%) 50%,
            hsl(210, 85%, 98%) 100%);
    position: relative;
    overflow: auto;
}

.login-container {
    width: 100%;
    max-width: 480px;
    position: relative;
    z-index: 10;
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border-light);
    animation: slideUp 0.6s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Login Header */
.login-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.logo-section {
    margin-bottom: var(--spacing-lg);
}

.logo-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    color: var(--color-primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.9;
        transform: scale(1.05);
    }
}

.login-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
}

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

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

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

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

.input-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--color-text-tertiary);
    pointer-events: none;
    display: flex;
    align-items: center;
    z-index: 1;
}

.input-wrapper input,
.input-wrapper select {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 4.5rem !important;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
}

.input-wrapper input:focus,
.input-wrapper select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-alpha);
}

.input-wrapper input::placeholder {
    color: var(--color-text-tertiary);
}

.input-wrapper select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.toggle-password {
    position: absolute;
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--color-text-tertiary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}

.toggle-password:hover {
    color: var(--color-primary);
}

/* Form Actions */
.form-actions {
    margin-top: var(--spacing-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-family);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    outline: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-login {
    width: 100%;
    height: 51px;
    padding: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.btn-loader {
    display: flex;
    align-items: center;
}

.btn-loader svg {
    animation: spin 1s linear infinite;
}

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

    to {
        transform: rotate(360deg);
    }
}

/* Demo Credentials */
.demo-credentials {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary-alpha), rgba(76, 175, 80, 0.05));
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-light);
}

.demo-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.demo-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.demo-item {
    padding: var(--spacing-sm);
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.demo-item:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.demo-item strong {
    color: var(--color-text-primary);
    display: block;
    margin-bottom: 2px;
}

/* Login Footer */
.login-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-light);
    text-align: center;
}

.login-footer p {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-xs);
}

.version {
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* Background Decoration */
.background-decoration {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.1), transparent);
    animation: float 20s ease-in-out infinite;
}

.circle-1 {
    width: 400px;
    height: 400px;
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.circle-2 {
    width: 300px;
    height: 300px;
    bottom: -150px;
    left: -100px;
    background: radial-gradient(circle, rgba(76, 175, 80, 0.1), transparent);
    animation-delay: 5s;
}

.circle-3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -30px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

/* Responsive Design */
@media (max-width: 640px) {
    .login-card {
        padding: var(--spacing-xl);
    }

    .demo-grid {
        grid-template-columns: 1fr;
    }

    .login-header h1 {
        font-size: var(--font-size-xl);
    }
}

/* Print Styles for GMP Documentation */
@media print {

    .background-decoration,
    .demo-credentials {
        display: none;
    }

    .login-card {
        box-shadow: none;
        border: 1px solid var(--color-border);
    }
}