/* ===================================
   ARSK MULTITEK - Modern Dark Theme
   Design unique avec glassmorphism
   =================================== */

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

:root {
    /* Couleurs principales */
    --primary-red: #ff1744;
    --primary-blue: #00b0ff;
    --dark-bg: #0a0e27;
    --darker-bg: #060815;
    --card-bg: rgba(15, 20, 40, 0.85);
    --glass-bg: rgba(255, 255, 255, 0.05);
    
    /* Textes */
    --text-primary: #ffffff;
    --text-secondary: #b0b8c9;
    --text-muted: #6b7280;
    
    /* Effets */
    --glow-red: 0 0 20px rgba(255, 23, 68, 0.5);
    --glow-blue: 0 0 20px rgba(0, 176, 255, 0.5);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
    
    /* Fonts */
    --font-primary: 'Rajdhani', sans-serif;
    --font-display: 'Orbitron', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* === PARTICLES BACKGROUND === */
#particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 23, 68, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 176, 255, 0.1) 0%, transparent 50%);
    animation: pulse 10s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
}

/* === FLASH MESSAGES === */
.flash-message {
    position: fixed;
    top: 100px;
    right: 20px;
    max-width: 400px;
    padding: 16px 20px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 9999;
    animation: slideIn 0.3s ease-out;
    border-left: 4px solid;
}

.flash-success {
    background: rgba(16, 185, 129, 0.15);
    border-left-color: #10b981;
    color: #10b981;
}

.flash-error {
    background: rgba(239, 68, 68, 0.15);
    border-left-color: #ef4444;
    color: #ef4444;
}

.flash-info {
    background: rgba(59, 130, 246, 0.15);
    border-left-color: #3b82f6;
    color: #3b82f6;
}

.flash-close {
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    margin-left: auto;
    font-size: 18px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.flash-close:hover {
    opacity: 1;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

/* === NAVIGATION === */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 30px;
}

.nav-logo img {
    height: 60px;
    transition: transform 0.3s;
}

.nav-logo:hover img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

.nav-link.active {
    color: var(--primary-blue);
    background: rgba(0, 176, 255, 0.1);
}

.nav-link.nav-btn {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-blue));
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 23, 68, 0.3);
}

.nav-link.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 23, 68, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: 0.3s;
}

/* === FORMS & AUTH PAGES === */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 40px;
}

.auth-box {
    max-width: 480px;
    width: 100%;
}

.auth-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.auth-header {
    text-align: center;
    padding: 40px 30px 30px;
    background: linear-gradient(135deg, rgba(255, 23, 68, 0.1), rgba(0, 176, 255, 0.1));
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-header img {
    height: 80px;
    margin-bottom: 20px;
}

.auth-header h1 {
    font-family: var(--font-display);
    font-size: 28px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-red), var(--primary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 15px;
}

.auth-body {
    padding: 40px 30px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.input-icon {
    position: absolute;
    left: 16px;
    color: var(--text-muted);
    pointer-events: none;
    z-index: 1;
}

.form-control {
    width: 100%;
    padding: 14px 16px 14px 45px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: var(--font-primary);
    transition: all 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(0, 176, 255, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* Checkbox */
.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 20px 0;
}

.form-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-blue);
}

.form-check label {
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
}

.form-check label a {
    color: var(--primary-blue);
    text-decoration: none;
}

.form-check label a:hover {
    text-decoration: underline;
}

/* Buttons */
.btn {
    padding: 14px 28px;
    border: none;
    border-radius: 12px;
    font-family: var(--font-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-blue));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 23, 68, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 23, 68, 0.5);
}

.btn-block {
    width: 100%;
}

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

/* reCAPTCHA */
.recaptcha-wrapper {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

/* Auth Links */
.auth-links {
    text-align: center;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-links a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.auth-links a:hover {
    color: var(--primary-red);
}

.auth-links p {
    color: var(--text-secondary);
    margin: 12px 0;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 25px 0;
    color: var(--text-muted);
    font-size: 14px;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.divider::before {
    margin-right: 15px;
}

.divider::after {
    margin-left: 15px;
}

/* === FOOTER === */
.main-footer {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: auto;
    padding: 60px 20px 30px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-family: var(--font-display);
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section ul li a:hover {
    color: var(--primary-blue);
}

.footer-logo {
    height: 60px;
    margin-bottom: 15px;
}

.footer-tagline {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
}

.social-links a:hover {
    background: linear-gradient(135deg, var(--primary-red), var(--primary-blue));
    color: white;
    transform: translateY(-3px);
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
    color: var(--text-secondary);
}

.footer-contact a {
    color: var(--primary-blue);
    text-decoration: none;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.footer-love {
    margin-top: 10px;
}

.footer-love i {
    color: var(--primary-red);
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    10%, 30% { transform: scale(1.2); }
    20%, 40% { transform: scale(1); }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 84px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 84px);
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 30px;
        border-left: 1px solid rgba(255, 255, 255, 0.1);
        transition: right 0.3s;
        gap: 0;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu li {
        width: 100%;
        margin: 8px 0;
    }
    
    .nav-link {
        width: 100%;
        justify-content: flex-start;
    }
    
    .auth-box {
        max-width: 100%;
    }
    
    .auth-header,
    .auth-body {
        padding: 30px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* === UTILITIES === */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }