/* ===========================
   COSMIC BASE STYLESHEET
   Iron Man Engineering Style
   =========================== */

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

:root {
    /* Cosmic Color Palette */
    --primary: #FF6B35;
    --primary-dark: #D85030;
    --primary-light: #FF8555;
    
    --secondary: #004E89;
    --secondary-dark: #003366;
    --secondary-light: #0066CC;
    
    --accent: #1DD1A1;
    --accent-dark: #10AC84;
    
    /* Neutrals */
    --dark-bg: #0a0e27;
    --dark-surface: #151a2f;
    --dark-border: #2a3550;
    --light-text: #e8edf7;
    --muted-text: #a0adc7;
    
    /* Effects */
    --glow: #FF6B35;
    --space-black: #000814;
    
    /* Typography */
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* ===========================
   GLOBAL STYLES
   =========================== */

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Cosmic Background Animation */
.cosmic-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--space-black) 0%, var(--dark-bg) 50%, var(--secondary-dark) 100%);
    z-index: -2;
    pointer-events: none;
}

.cosmic-background::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255, 107, 53, 0.2), rgba(0, 0, 0, 0)),
        radial-gradient(2px 2px at 60px 70px, rgba(29, 209, 161, 0.15), rgba(0, 0, 0, 0)),
        radial-gradient(1px 1px at 50px 50px, rgba(255, 255, 255, 0.1), rgba(0, 0, 0, 0)),
        radial-gradient(1px 1px at 130px 80px, rgba(0, 78, 137, 0.2), rgba(0, 0, 0, 0)),
        radial-gradient(2px 2px at 90px 10px, rgba(255, 107, 53, 0.1), rgba(0, 0, 0, 0));
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: twinkle 5s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ===========================
   TYPOGRAPHY
   =========================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--light-text);
}

h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-xl);
    text-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 0 15px rgba(255, 107, 53, 0.2);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--muted-text);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-dark);
    text-shadow: 0 0 10px rgba(29, 209, 161, 0.3);
}

/* ===========================
   NAVIGATION BAR
   =========================== */

.navbar {
    background: linear-gradient(90deg, rgba(21, 26, 47, 0.95) 0%, rgba(0, 78, 137, 0.1) 100%);
    border-bottom: 2px solid var(--primary);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(255, 107, 53, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
    text-shadow: 0 0 15px rgba(255, 107, 53, 0.5);
    letter-spacing: 0.1em;
}

.logo-icon {
    display: inline-block;
    animation: spin 3s linear infinite;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-item {
    position: relative;
}

.nav-link {
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--light-text);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width var(--transition-normal);
}

.nav-link:hover {
    color: var(--primary);
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.3);
}

.nav-link:hover::after {
    width: 100%;
}

.logout-link {
    color: var(--primary);
}

/* ===========================
   MAIN CONTENT
   =========================== */

.main-content {
    min-height: calc(100vh - 200px);
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

/* ===========================
   FOOTER
   =========================== */

.footer {
    background: linear-gradient(180deg, rgba(21, 26, 47, 0.8) 0%, var(--space-black) 100%);
    border-top: 2px solid var(--secondary);
    padding: var(--spacing-xl) var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
}

.footer-content p {
    color: var(--muted-text);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-link {
    color: var(--muted-text);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary);
}

/* ===========================
   BUTTONS
   =========================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left var(--transition-normal);
    z-index: -1;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.3);
    border: 1px solid var(--primary-light);
}

.btn-primary:hover {
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.6);
    transform: translateY(-2px);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
    color: white;
    box-shadow: 0 0 20px rgba(0, 78, 137, 0.3);
    border: 1px solid var(--secondary-light);
}

.btn-secondary:hover {
    box-shadow: 0 0 30px rgba(0, 78, 137, 0.6);
    transform: translateY(-2px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--space-black);
    box-shadow: 0 0 20px rgba(29, 209, 161, 0.3);
}

.btn-accent:hover {
    box-shadow: 0 0 30px rgba(29, 209, 161, 0.6);
    transform: translateY(-2px);
}

/* ===========================
   FORMS
   =========================== */

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

label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    color: var(--light-text);
    text-transform: uppercase;
}

input, textarea, select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--dark-border);
    background: rgba(21, 26, 47, 0.8);
    color: var(--light-text);
    font-family: var(--font-body);
    border-radius: 4px;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(21, 26, 47, 0.95);
    box-shadow: 0 0 15px rgba(255, 107, 53, 0.2);
}

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

/* ===========================
   CARDS
   =========================== */

.card {
    background: linear-gradient(135deg, rgba(21, 26, 47, 0.8) 0%, rgba(0, 78, 137, 0.1) 100%);
    border: 1px solid var(--dark-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 32px rgba(255, 107, 53, 0.2);
    transform: translateY(-4px);
}

.card-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--dark-border);
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--light-text);
}

.card-body {
    flex: 1;
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--dark-border);
}

/* ===========================
   ALERTS
   =========================== */

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 4px;
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
    backdrop-filter: blur(10px);
}

.alert-success {
    background: rgba(29, 209, 161, 0.1);
    border-left-color: var(--accent);
    color: var(--accent);
}

.alert-error {
    background: rgba(255, 107, 53, 0.1);
    border-left-color: var(--primary);
    color: var(--primary);
}

.alert-warning {
    background: rgba(0, 78, 137, 0.1);
    border-left-color: var(--secondary);
    color: var(--secondary-light);
}

.alert-info {
    background: rgba(0, 78, 137, 0.1);
    border-left-color: var(--secondary-light);
    color: var(--secondary-light);
}

/* ===========================
   RESPONSIVE
   =========================== */

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .nav-menu {
        gap: var(--spacing-md);
    }

    .nav-link {
        font-size: 0.8rem;
        padding: var(--spacing-sm);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .main-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

/* ===========================
   UTILITIES
   =========================== */

.glow {
    text-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
}

.glow-accent {
    text-shadow: 0 0 10px rgba(29, 209, 161, 0.5);
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-in {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}