@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #8a2be2; /* Purple */
    --primary-dark: #6a1cb0;
    --primary-light: #a14eec;
    --secondary: #e74c3c;
    --accent: #00d2ff; /* Accent color */
    --accent-secondary: #3a7bd5; /* Secondary accent */
    --light: #f8f9fa;
    --dark: #000000; /* Pure black */
    --card-bg: #111111; /* Slightly lighter black */
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #c0392b;
    --text-primary: #ffffff;
    --text-secondary: #cccccc; /* Increased contrast from #aaaaaa */
    --text-tertiary: #999999;
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    --spacing-xl: 40px;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: #000000;
    color: var(--text-primary);
    line-height: 1.7; /* Improved line height */
    letter-spacing: 0.01em; /* Slight letter spacing for better readability */
    /* Simplified pure black background */
    background: #000000;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(138, 43, 226, 0.02) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(0, 210, 255, 0.01) 0%, transparent 50%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Subtle ambient light effect (reduced opacity) */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 0%, rgba(138, 43, 226, 0.01) 0%, transparent 20%),
        radial-gradient(circle at 90% 90%, rgba(0, 210, 255, 0.01) 0%, transparent 25%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.company-name {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 1.5px; /* Increased letter spacing */
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    text-transform: uppercase; /* Added uppercase for brand name */
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.company-name::before {
    content: "★"; /* Simple logo/icon */
    font-size: 1.4rem;
    color: var(--accent);
}

header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
    background-color: var(--card-bg);
    color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow),
                0 1px 0 rgba(255, 255, 255, 0.05) inset;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-medium);
}

header:hover {
    transform: translateY(-5px);
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--accent));
}

h1 {
    font-size: 2.8rem;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.description {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    padding: 0 var(--spacing-lg);
}

.hindi-slogan {
    font-size: 1.3rem;
    margin-top: var(--spacing-md);
    color: var(--primary-light);
    font-weight: 500;
    letter-spacing: 0.5px;
}

.version {
    font-size: 0.85rem;
    margin-top: var(--spacing-md);
    background: linear-gradient(to right, rgba(138, 43, 226, 0.2), rgba(0, 210, 255, 0.2));
    display: inline-block;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 500;
    transition: all var(--transition-medium);
}

.version:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.2);
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow),
                0 1px 0 rgba(255, 255, 255, 0.05) inset;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4),
                0 1px 0 rgba(255, 255, 255, 0.05) inset;
}

h2 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(to right, var(--primary), var(--accent));
}

.button {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 15px 25px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all var(--transition-medium);
    position: relative;
    z-index: 10;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
    overflow: hidden;
    display: inline-block;
    text-align: center;
    text-decoration: none;
}

.button::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: all var(--transition-slow);
}

.button:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.5);
}

.button:hover::before {
    left: 100%;
}

.button:active {
    transform: translateY(-1px);
    box-shadow: 0 2px 10px rgba(138, 43, 226, 0.3);
}

.button::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: transparent;
    border-radius: var(--border-radius-md);
    transition: all 0.4s ease;
}

.button:active::after {
    background: rgba(255, 255, 255, 0.1);
}

.secondary-button {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 15px 25px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all var(--transition-medium);
    text-decoration: none;
    display: inline-block;
}

.secondary-button:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    opacity: 0.7;
    transition: opacity var(--transition-medium);
}

.footer:hover {
    opacity: 1;
}

/* Form styling */
input, select, textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    font-size: 16px;
    color: var(--text-primary);
    transition: all var(--transition-medium);
}

input:hover, select:hover, textarea:hover {
    border-color: rgba(255, 255, 255, 0.2);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.2);
    transform: translateY(-2px);
}

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

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
    letter-spacing: 0.8px;
    transition: color var(--transition-fast);
}

.form-group:hover label {
    color: var(--primary-light);
}

/* User navigation */
.user-nav {
    background-color: rgba(0, 0, 0, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 10px 0;
    margin-bottom: 20px;
}

.user-nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-greeting {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-actions {
    display: flex;
    gap: 15px;
}

.logout-btn {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: none;
    padding: 5px 15px;
    border-radius: var(--border-radius-md);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-medium);
    text-decoration: none;
}

.logout-btn:hover {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--danger);
}

.upgrade-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 5px 15px;
    border-radius: var(--border-radius-md);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-medium);
    text-decoration: none;
}

.upgrade-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.3);
}

/* Alert styles */
.alert {
    padding: 15px;
    border-radius: var(--border-radius-md);
    margin-bottom: 20px;
    animation: fadeIn 0.5s ease;
}

.alert-success {
    background-color: rgba(39, 174, 96, 0.1);
    border-left: 4px solid var(--success);
    color: var(--success);
}

.alert-danger {
    background-color: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--danger);
    color: var(--danger);
}

.alert-warning {
    background-color: rgba(243, 156, 18, 0.1);
    border-left: 4px solid var(--warning);
    color: var(--warning);
}

.alert-info {
    background-color: rgba(0, 210, 255, 0.1);
    border-left: 4px solid var(--accent);
    color: var(--accent);
}

/* Auth container styles */
.auth-container {
    max-width: 500px;
    margin: 50px auto;
    padding: var(--spacing-xl);
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--box-shadow);
}

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

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    color: var(--text-secondary);
}

.error-container {
    background-color: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--danger);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
}

.error-container ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

/* Animations */
@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(10px);
    }
}

/* Media queries */
@media (max-width: 768px) {
    .input-grid {
        grid-template-columns: 1fr;
    }
    
    .supplier-ranking {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .user-nav-content {
        flex-direction: column;
        gap: 10px;
    }
}