/* ===== CSS VARIABLES ===== */
:root {
    /* Colors */
    --primary-green: #28a745;
    --primary-dark: #1e7e34;
    --primary-light: #d4edda;
    
    --secondary-orange: #ff9800;
    --secondary-red: #dc3545;
    --secondary-blue: #007bff;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f4;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --black: #000000;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 
                   'Helvetica Neue', Arial, 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 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    min-height: 100vh;
}

/* ===== ACCESSIBILITY ===== */
/* Skip to main content link */
.skip-to-main {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1rem 1.5rem;
    background: var(--primary-green);
    color: white;
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius-md);
}

.skip-to-main:focus {
    left: 1rem;
    top: 1rem;
    box-shadow: var(--shadow-xl);
    outline: 3px solid var(--primary-dark);
    outline-offset: 2px;
}

/* Focus styles for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--primary-green);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--primary-green);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary-green: #1e7e34;
        --gray-600: #495057;
    }
    
    .btn {
        border-width: 3px;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--space-4);
    color: var(--gray-900);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--space-4);
}

/* ===== LAYOUT ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }
}

/* ===== HEADER ===== */
.header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: var(--space-5) 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    position: sticky;
    top: 0;
    z-index: 100;
    will-change: transform;
    contain: layout style;
}

.modern-header {
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-image {
    height: 80px;
    width: auto;
    object-fit: contain;
    mix-blend-mode: multiply;
    filter: brightness(1.1);
}

.logo-text {
    display: flex;
    flex-direction: column;
    flex: 1;
    margin-left: var(--space-4);
}

.logo-text h1 {
    margin: 0;
    color: var(--white);
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.tagline {
    margin: 0;
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 500;
    opacity: 0.95;
}

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

.btn-refresh {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-weight: 600;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.btn-refresh:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.logo-icon {
    font-size: 2.5rem;
    animation: pulse 2s ease-in-out infinite;
    will-change: transform;
    transform: translateZ(0);
}

.header-logo {
    height: 70px;
    width: auto;
    object-fit: contain;
    mix-blend-mode: multiply;
    filter: brightness(1.1);
}

@keyframes pulse {
    0%, 100% { 
        transform: scale(1) translateZ(0); 
    }
    50% { 
        transform: scale(1.02) translateZ(0); 
    }
}

@media (prefers-reduced-motion: reduce) {
    .logo-icon {
        animation: none;
    }
}

.logo-text h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin: 0;
    color: var(--white);
    letter-spacing: 0.5px;
}

.tagline {
    font-size: var(--font-size-sm);
    opacity: 0.95;
    margin: 0;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
}

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

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px) translateZ(0);
}

.nav-icon {
    font-size: 1.25rem;
}

.btn-modern {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: var(--white);
    color: var(--primary-dark);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.btn-icon {
    font-size: 1.25rem;
}

.btn-link {
    background: transparent;
    color: var(--white);
    border: none;
    padding: var(--space-2) var(--space-4);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.btn-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

@media (max-width: 768px) {
    .header {
        padding: var(--space-4) 0;
    }
    
    .header-content {
        gap: var(--space-3);
        flex-direction: column;
        text-align: center;
    }
    
    .logo {
        gap: var(--space-2);
        flex-direction: column;
    }
    
    .logo-icon {
        font-size: 1.5rem;
        animation: none; /* Disable animation on mobile to prevent CLS */
    }
    
    .logo-text h1 {
        font-size: var(--font-size-lg);
    }
    
    .tagline {
        font-size: 0.7rem;
    }
    
    .header-actions {
        gap: var(--space-2);
        justify-content: center;
    }
    
    .nav-link {
        padding: var(--space-2) var(--space-3);
        gap: 0;
        justify-content: center;
        min-width: 44px;
    }
    
    .nav-link span:not(.nav-icon) {
        display: none;
    }
    
    .nav-icon {
        font-size: 1rem;
    }
    
    .btn-modern {
        padding: var(--space-2) var(--space-3);
        gap: 0;
        min-width: 44px;
    }
    
    .btn-modern span:not(.btn-icon) {
        display: none;
    }
    
    .btn-icon {
        font-size: 1rem;
    }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    gap: var(--space-2);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Button Variants */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-color: var(--primary-green);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.25);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(40, 167, 69, 0.35);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-dark);
    border-color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-modern {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-modern:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.35);
    border-color: rgba(255, 255, 255, 0.6);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

.btn-outline:hover:not(:disabled) {
    background: var(--white);
    color: var(--primary-dark);
}

.btn-danger {
    background: var(--secondary-red);
    color: var(--white);
    border-color: var(--secondary-red);
}

.btn-danger:hover:not(:disabled) {
    background: #c82333;
    transform: translateY(-2px);
}

/* Button Sizes */
.btn-large {
    padding: var(--space-5) var(--space-8);
    font-size: var(--font-size-lg);
}

.btn-full {
    width: 100%;
}

/* ===== CARDS ===== */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-6);
    transition: transform var(--transition-normal), 
                box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card-title {
    font-size: var(--font-size-xl);
    color: var(--primary-dark);
    margin-bottom: var(--space-5);
    border-left: 4px solid var(--primary-green);
    padding-left: var(--space-4);
}

/* ===== FORMS ===== */
.form-section {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--space-3);
}

.form-help {
    font-size: var(--font-size-sm);
    color: #495057;
    margin-top: var(--space-2);
    margin-bottom: var(--space-4);
}

.form-input {
    width: 100%;
    padding: var(--space-4);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    background: var(--white);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.form-input:disabled {
    background: var(--gray-100);
    color: var(--gray-500);
    cursor: not-allowed;
}

/* Input Groups */
.input-with-prefix {
    display: flex;
    align-items: center;
}

.input-prefix {
    background: var(--primary-light);
    padding: var(--space-4);
    border: 2px solid var(--gray-300);
    border-right: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    color: var(--primary-dark);
    font-weight: 600;
}

.input-with-prefix .form-input {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    border-left: none;
}

/* ===== LOADING STATES ===== */
.loading-state {
    text-align: center;
    padding: var(--space-12);
    color: #495057;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-4);
    will-change: transform;
    transform: translateZ(0);
}

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

/* ===== STATUS MESSAGES ===== */
.status-message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    max-width: 400px;
    display: none;
    animation: slideInRight 0.3s ease;
}

.status-message.show {
    display: block;
}

.status-success {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-left: 4px solid var(--primary-green);
}

.status-error {
    background: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--secondary-red);
}

.status-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid var(--secondary-blue);
}

.status-warning {
    background: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--secondary-orange);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%) translateZ(0);
    }
    to {
        opacity: 1;
        transform: translateX(0) translateZ(0);
    }
}

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

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }

.hidden { display: none; }
.sr-only { 
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== FOOTER ===== */
.footer {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 2.5rem 0;
    margin-top: 4rem;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
}

.footer-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.footer-content p {
    margin: 0;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
    color: var(--white);
}

.footer-links {
    display: flex;
    gap: 2rem;
    margin-top: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--white);
    transition: transform 0.3s ease;
}

.footer-links a:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.footer-links a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .header {
        padding: var(--space-2) 0;
    }
    
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        gap: var(--space-2);
        align-items: center;
    }
    
    .logo {
        gap: var(--space-2);
        flex: 0 0 auto;
    }
    
    .logo-image {
        height: 100px;
        flex-shrink: 0;
    }
    
    .logo-text {
        display: none;
    }
    
    .tagline {
        font-size: 0.75rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .header-actions {
        flex: 0 0 auto;
        margin-left: auto;
    }
    
    .header-actions .btn-modern {
        padding: var(--space-2) var(--space-3);
        font-size: 0.8rem;
        gap: var(--space-1);
    }
    
    .btn-icon {
        font-size: 0.85rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .status-message {
        left: 20px;
        right: 20px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--space-2) 0;
    }
    
    .header-content {
        gap: var(--space-2);
    }
    
    .logo {
        gap: var(--space-1);
    }
    
    .logo-image {
        height: 80px;
    }
    
    .tagline {
        font-size: 0.7rem;
    }
    
    .header-actions .btn-modern {
        padding: var(--space-2);
        min-width: 36px;
        height: 36px;
    }
    
    .header-actions .btn-modern span:not(.btn-icon) {
        display: none;
    }
    
    .btn-icon {
        font-size: 1rem;
        margin: 0;
    }
    
    .container {
        padding: 0 var(--space-3);
    }
    
    .card {
        padding: var(--space-4);
    }
    
    .btn {
        padding: var(--space-3) var(--space-4);
    }
}

/* ===== COOKIE BANNER ===== */
.cookie-banner {
    position: fixed;
    right: 20px;
    left: 20px;
    bottom: 20px;
    background: rgba(255,255,255,0.98);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    padding: 12px 16px;
    z-index: 1200;
    display: none;
    align-items: center;
    justify-content: center;
}
.cookie-inner { 
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    gap: 16px; 
    width: 100%; 
    max-width: 1100px; 
}
.cookie-text { flex: 1; min-width: 0; }
.cookie-text strong { display: block; margin-bottom: 4px; }
.cookie-text p { margin: 6px 0 0; color: var(--gray-700); font-size: 0.9rem; }
.cookie-actions { 
    display: flex; 
    gap: 8px; 
    flex-shrink: 0;
}
.cookie-actions .btn { 
    padding: 8px 12px; 
    font-size: 0.95rem; 
    white-space: nowrap;
}
.cookie-actions .btn-outline {
    background: transparent;
    color: var(--gray-700);
    border-color: var(--gray-400);
}
.cookie-actions .btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-500);
    color: var(--gray-900);
}

/* Mobile responsive */
@media (max-width: 640px) {
    .cookie-banner {
        right: 12px;
        left: 12px;
        bottom: 12px;
        padding: 16px;
    }
    .cookie-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .cookie-text p {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    .cookie-actions {
        flex-direction: row;
        justify-content: stretch;
    }
    .cookie-actions .btn {
        flex: 1;
        padding: 10px 16px;
        font-size: 0.9rem;
    }
}

@media (max-width: 400px) {
    .cookie-actions {
        flex-direction: column;
    }
    .cookie-actions .btn {
        width: 100%;
    }
}