/**
 * ATLAS System - Main CSS
 * Global styles and base theme
 * Base URL: /duratec/
 */

/* ==================== CSS Variables - Dark Theme ==================== */
:root {
    /* Primary Colors - Blue Gradient */
    --color-primary: #4a9eff;
    --color-primary-dark: #3380dd;
    --color-primary-light: #6cb4ff;
    
    /* Background Colors */
    --color-bg-main: #0a0a0a;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #2a2a2a;
    --color-bg-hover: #333333;
    
    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: #cccccc;
    --color-text-muted: #888888;
    
    /* Border Colors */
    --color-border: #333333;
    --color-border-light: #444444;
    
    /* Status Colors */
    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-error: #f44336;
    --color-info: #2196f3;
    
    /* Fonts */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    /* Transitions & Effects */
    --transition-speed: 0.2s;
    --transition-smooth: 0.3s ease;
    --border-radius: 4px;
    --border-radius-lg: 8px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

/* ==================== Base Styles ==================== */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg-main);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-speed);
}

a:hover {
    color: var(--color-primary-light);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-smooth);
    text-align: center;
    line-height: 1.5;
}

.btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.btn-secondary:hover {
    background: var(--color-bg-hover);
}

.btn-success {
    background: var(--color-success);
}

.btn-success:hover {
    background: #45a049;
}

.btn-warning {
    background: var(--color-warning);
}

.btn-warning:hover {
    background: #e68900;
}

.btn-error {
    background: var(--color-error);
}

.btn-error:hover {
    background: #da190b;
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.125rem;
}

/* ==================== Forms ==================== */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: border-color var(--transition-speed);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
}

input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

/* ==================== Cards ==================== */
.card {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--color-border);
}

.card-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-title {
    margin: 0;
    color: var(--color-primary);
    font-size: 1.25rem;
}

.card-body {
    padding: 0;
}

.card-footer {
    border-top: 1px solid var(--color-border);
    padding-top: 1rem;
    margin-top: 1rem;
}

/* ==================== Tables ==================== */
table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    background: var(--color-bg-tertiary);
    font-weight: 600;
    color: var(--color-primary);
}

tr:hover {
    background: var(--color-bg-hover);
}

/* ==================== Alerts ==================== */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: 1px solid;
}

.alert-info {
    background: rgba(33, 150, 243, 0.1);
    border-color: var(--color-info);
    color: var(--color-info);
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-error {
    background: rgba(244, 67, 54, 0.1);
    border-color: var(--color-error);
    color: var(--color-error);
}

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

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-title {
    color: var(--color-primary);
    font-size: 1.5rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-speed);
}

.modal-close:hover {
    color: var(--color-text-primary);
}

/* ==================== Loading Spinner ==================== */
.spinner {
    border: 3px solid var(--color-bg-tertiary);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
}

/* ==================== Utility Classes ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-fluid {
    width: 100%;
    padding: 0 1rem;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

/* Margins */
.m-0 { margin: 0; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.ml-1 { margin-left: 0.5rem; }
.ml-2 { margin-left: 1rem; }
.mr-1 { margin-right: 0.5rem; }
.mr-2 { margin-right: 1rem; }

/* Padding */
.p-0 { padding: 0; }
.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }
.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }

/* Flexbox */
.flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.flex-start {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.flex-end {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

/* Gaps */
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-tertiary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-bg-hover);
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    .container {
        padding: 0 0.75rem;
    }
    
    .btn {
        width: 100%;
    }
    
    .modal-content {
        padding: 1.5rem;
        width: 95%;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .btn-lg {
        padding: 0.625rem 1.5rem;
        font-size: 1rem;
    }
}

/* ==================== Print Styles ==================== */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .btn,
    .modal,
    nav,
    footer {
        display: none;
    }
}