/* 
    NexTrade Premium Design System (2026)
    Centralized CSS Variables, Glassmorphism, and Reusable Utilities
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Couleurs de marque */
    --nt-or: #d4af37;
    --nt-or-hover: #f1c40f;
    --nt-or-fonce: #b3923b;
    --nt-vert: #143b2a;
    --nt-vert-clair: #205c42;
    --nt-vert-neon: #10b981;
    
    /* Neutres & Surfaces */
    --nt-bg: #f8fafc;
    --nt-card: #ffffff;
    --nt-texte: #0f172a;
    --nt-texte-muted: #64748b;
    --nt-border: #e2e8f0;
    
    /* Variables de design */
    --nt-radius-sm: 8px;
    --nt-radius: 16px;
    --nt-radius-lg: 24px;
    --nt-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    --nt-shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.08);
}

/* Base */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--nt-bg);
    color: var(--nt-texte);
    line-height: 1.6;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .outfit-font {
    font-family: 'Outfit', sans-serif;
}

/* Modificateurs Typographiques */
.text-gradient-or {
    background: linear-gradient(135deg, var(--nt-or), var(--nt-or-hover));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.text-gradient-vert {
    background: linear-gradient(135deg, var(--nt-vert), var(--nt-vert-clair));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Composants de boutons premium */
.btn-premium {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--nt-radius);
    font-family: 'Outfit', sans-serif;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.btn-premium.primary {
    background: linear-gradient(135deg, var(--nt-vert), var(--nt-vert-clair));
    color: white;
    box-shadow: 0 4px 15px rgba(20, 59, 42, 0.3);
}

.btn-premium.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(20, 59, 42, 0.4);
    background: linear-gradient(135deg, var(--nt-vert-clair), var(--nt-vert));
}

.btn-premium.gold {
    background: linear-gradient(135deg, var(--nt-or), var(--nt-or-hover));
    color: #fff;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.btn-premium.gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
}

.btn-premium.outline {
    background: transparent;
    color: var(--nt-vert);
    border: 2px solid var(--nt-vert);
}

.btn-premium.outline:hover {
    background: var(--nt-vert);
    color: white;
}

/* Glassmorphism Components */
.glass-panel {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--nt-radius);
    box-shadow: var(--nt-shadow);
}

.glass-panel-dark {
    background: rgba(20, 59, 42, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--nt-radius);
    color: white;
}

/* Cards */
.nt-card {
    background: var(--nt-card);
    border-radius: var(--nt-radius);
    padding: 30px;
    box-shadow: var(--nt-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--nt-border);
}

.nt-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--nt-shadow-hover);
}

/* Input & Forms */
.nt-input {
    width: 100%;
    padding: 14px 20px;
    border: 1px solid var(--nt-border);
    border-radius: var(--nt-radius-sm);
    font-family: inherit;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #fff;
    box-sizing: border-box;
}

.nt-input:focus {
    outline: none;
    border-color: var(--nt-or);
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.15);
}

/* Badges */
.nt-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nt-badge.verified {
    background: rgba(16, 185, 129, 0.1);
    color: var(--nt-vert-neon);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.nt-badge.premium {
    background: rgba(212, 175, 55, 0.1);
    color: var(--nt-or-fonce);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

/* Layout Utilities */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Micro-animations */
.hover-scale {
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.hover-scale:hover {
    transform: scale(1.03);
}