/* ============================================
   PYCO RENEW - Login Page CSS
   Standalone stylesheet for login.php
   ============================================ */

/* ============================================
   CSS VARIABLES - PYCO RENEW Brand Colors
   ============================================ */
:root {
    /* Primary Brand Colors */
    --color-primary: #10B981;
    --color-primary-dark: #059669;
    --color-primary-light: #34D399;
    --color-primary-bg: #f0fdf4;
    
    /* Neutrals */
    --color-black: #000000;
    --color-dark: #1F2937;
    --color-gray-dark: #374151;
    --color-gray: #6B7280;
    --color-gray-light: #d1d5db;
    --color-white: #ffffff;
    
    /* Semantic Colors */
    --color-success: #10B981;
    --color-error: #ef4444;
    --color-error-bg: #fef2f2;
    --color-error-border: #fecaca;
    --color-error-text: #991b1b;
    --color-info: #0ea5e9;
    --color-info-bg: #f0f9ff;
    --color-info-border: #bae6fd;
    --color-info-text: #075985;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 10px 30px rgba(16, 185, 129, 0.3);
    
    /* Transitions */
    --transition-base: 0.3s ease;
}

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

body { 
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-dark) 100%);
    min-height: 100vh; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    padding: 20px;
    color: var(--color-dark);
}

/* ============================================
   LOGIN CONTAINER
   ============================================ */
.login-container { 
    background: var(--color-white); 
    border-radius: var(--radius-lg); 
    padding: 40px; 
    box-shadow: var(--shadow-lg); 
    max-width: 400px; 
    width: 100%;
    position: relative;
    overflow: hidden;
}

/* Decorative gradient bar at top */
.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

/* ============================================
   LOGO - PYCO RENEW Branding
   ============================================ */
.logo { 
    text-align: center; 
    margin-bottom: 25px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

/* Recycling icon with green accent */
.logo::before {
    content: '♻️';
    font-size: 48px;
    display: block;
}

/* PYCO RENEW Logo */
.logo-pyco-renew {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 10px;
}

.logo-pyco {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background: var(--color-primary);
    border-radius: 50%;
    display: inline-block;
}

.logo-renew {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

/* ============================================
   HEADINGS
   ============================================ */
h1 { 
    text-align: center; 
    color: var(--color-dark); 
    margin-bottom: 10px; 
    font-size: 24px;
    font-weight: 700;
}

.subtitle { 
    text-align: center; 
    color: var(--color-gray); 
    margin-bottom: 30px; 
    font-size: 14px;
    font-weight: 500;
}

/* ============================================
   FORM ELEMENTS
   ============================================ */
.form-group { 
    margin-bottom: 20px; 
}

label { 
    display: block; 
    margin-bottom: 8px; 
    color: var(--color-dark); 
    font-weight: 600;
    font-size: 14px;
}

input { 
    width: 100%; 
    padding: 12px 16px; 
    border: 2px solid var(--color-gray-light); 
    border-radius: var(--radius-md); 
    font-size: 15px;
    transition: all var(--transition-base);
    background: var(--color-white);
    color: var(--color-dark);
}

input:focus { 
    outline: none; 
    border-color: var(--color-primary); 
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

input::placeholder {
    color: var(--color-gray);
}

/* ============================================
   BUTTON - Green Gradient
   ============================================ */
button { 
    width: 100%; 
    padding: 14px; 
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white; 
    border: none; 
    border-radius: var(--radius-md); 
    font-size: 16px; 
    font-weight: 700; 
    cursor: pointer; 
    margin-top: 10px;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-glow);
}

button:hover { 
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(16, 185, 129, 0.4);
}

button:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================
   ALERTS & MESSAGES
   ============================================ */

/* Error Message */
.error { 
    background: var(--color-error-bg); 
    color: var(--color-error-text); 
    padding: 12px 16px; 
    border-radius: var(--radius-md); 
    margin-bottom: 20px; 
    border: 1px solid var(--color-error-border);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error::before {
    content: '⚠️';
    font-size: 16px;
}

/* Info Message */
.info { 
    background: var(--color-info-bg); 
    color: var(--color-info-text); 
    padding: 12px 16px; 
    border-radius: var(--radius-md); 
    margin-top: 20px; 
    border: 1px solid var(--color-info-border);
    font-size: 13px;
    line-height: 1.6;
}

.info strong {
    color: var(--color-info-text);
    display: block;
    margin-bottom: 8px;
}

.info code {
    background: rgba(14, 165, 233, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--color-info-text);
    font-weight: 600;
}

/* ============================================
   FOOTER TEXT (if added)
   ============================================ */
.footer-text {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-gray-light);
    color: var(--color-gray);
    font-size: 12px;
}

.footer-text strong {
    color: var(--color-primary);
}

/* ============================================
   LOADING STATE (optional)
   ============================================ */
.loading {
    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); }
}

button.loading {
    position: relative;
}

button.loading::after {
    content: '';
    position: absolute;
    right: 16px;
    top: 50%;
    margin-top: -8px;
    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;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }
    
    .logo::before {
        font-size: 40px;
    }
    
    .logo-pyco,
    .logo-renew {
        font-size: 1.5rem;
    }
    
    .logo-dot {
        width: 8px;
        height: 8px;
    }
    
    h1 {
        font-size: 22px;
    }
    
    .subtitle {
        font-size: 13px;
    }
    
    input,
    button {
        padding: 12px;
        font-size: 15px;
    }
}

/* ============================================
   ACCESSIBILITY ENHANCEMENTS
   ============================================ */

/* Focus visible for keyboard navigation */
input:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    input {
        border-width: 2px;
    }
    
    button {
        border: 2px solid var(--color-primary-dark);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    body {
        background: white;
    }
    
    .login-container {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .info {
        display: none;
    }
}

/* ============================================
   DARK MODE SUPPORT (optional)
   ============================================ */
@media (prefers-color-scheme: dark) {
    /* Keep login page light for better visibility */
    /* If you want dark mode, uncomment and customize:
    
    body {
        background: linear-gradient(135deg, #111827 0%, #1F2937 100%);
    }
    
    .login-container {
        background: #1F2937;
        color: #f9fafb;
    }
    
    h1, label {
        color: #f9fafb;
    }
    
    .subtitle {
        color: #9CA3AF;
    }
    
    input {
        background: #111827;
        border-color: #374151;
        color: #f9fafb;
    }
    
    input:focus {
        border-color: var(--color-primary);
    }
    */
}

/* ============================================
   ADDITIONAL UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-20 {
    margin-top: 20px;
}

/* Link styling (if you add forgot password, etc.) */
a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* ============================================
   ANIMATIONS FOR PAGE LOAD
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-container {
    animation: fadeIn 0.4s ease-out;
}