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

:root {
    /* Colors */
    --primary-blue: #3b82f6;
    --primary-blue-dark: #2563eb;
    --primary-blue-light: #60a5fa;
    --secondary-blue: #1e40af;
    
    --black: #0a0a0a;
    --black-light: #1a1a1a;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --white: #ffffff;
    
    --green: #10b981;
    --green-light: #34d399;
    --red: #ef4444;
    --red-light: #f87171;
    --purple: #8b5cf6;
    --purple-light: #a78bfa;
    --yellow: #f59e0b;
    --yellow-light: #fbbf24;
    --pink: #ec4899;
    --orange: #f97316;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--black);
    color: var(--gray-100);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-text {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
}

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

.btn-secondary {
    background: var(--gray-800);
    color: var(--gray-100);
    border: 1px solid var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-700);
    border-color: var(--gray-600);
}

.btn-text {
    background: transparent;
    color: var(--primary-blue);
    padding: 0.5rem;
}

.btn-text:hover {
    color: var(--primary-blue-light);
    background: rgba(59, 130, 246, 0.1);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

/* Icon Button */
.icon-btn {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    background: var(--gray-800);
    border: 1px solid var(--gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.icon-btn:hover {
    background: var(--gray-700);
}

.icon-btn svg {
    stroke: var(--gray-300);
}

/* Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-300);
}

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

.input-group svg {
    position: absolute;
    left: 1rem;
    stroke: var(--gray-400);
    pointer-events: none;
    z-index: 1;
}

.input-group input,
.input-group select {
    padding-left: 3rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--gray-800);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-md);
    color: var(--gray-100);
    font-size: 0.875rem;
    transition: var(--transition);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

textarea {
    resize: vertical;
    font-family: inherit;
}

/* Auth Page Input Overrides */
.auth-page input[type="text"],
.auth-page input[type="email"],
.auth-page input[type="tel"],
.auth-page input[type="password"] {
    background: var(--white);
    color: var(--black);
    border: 1px solid var(--gray-300);
}

.auth-page input:focus {
    background: var(--white);
    color: var(--black);
    border-color: var(--primary-blue);
}

.auth-page input::placeholder {
    color: var(--gray-400);
}

.auth-page .input-group svg {
    stroke: var(--gray-400);
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--gray-300);
}

.checkbox-label input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: var(--gray-800);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    transform: translateY(200%);
    transition: transform 0.3s ease;
    z-index: 10000;
    max-width: 400px;
}

.toast.show {
    transform: translateY(0);
}

.toast.success {
    border-color: var(--green);
    background: rgba(16, 185, 129, 0.1);
}

.toast.error {
    border-color: var(--red);
    background: rgba(239, 68, 68, 0.1);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--gray-900);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--gray-700);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-800);
}

.modal-header h3 {
    font-size: 1.25rem;
    color: var(--gray-100);
}

.modal-close {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-800);
}

.modal-close svg {
    stroke: var(--gray-400);
}

.modal-footer {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    border-top: 1px solid var(--gray-800);
}

/* Cards */
.card {
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-700);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 0.875rem;
    }
    
    .toast {
        right: 1rem;
        left: 1rem;
        bottom: 1rem;
    }
}