/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background-color: var(--avi-bg, #0A1628);
    color: var(--avi-text, #EEEEFF);
    font-family: var(--avi-font-body, 'Inter', system-ui, sans-serif);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
body.avi-has-nav { padding-top: var(--avi-nav-height, 60px); }

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700; line-height: 1.2; color: var(--avi-text, #EEEEFF);
    letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
p  { color: var(--avi-text-muted, #A0B4D0); line-height: 1.7; }
a  { color: var(--avi-primary-light, #6B9FE8); text-decoration: none; }
a:hover { color: var(--avi-text, #EEEEFF); }

/* Layout */
.avi-container {
    width: 100%; max-width: var(--avi-max-width, 1200px);
    margin-inline: auto; padding-inline: 24px;
}
.avi-section        { padding-block: var(--avi-section-padding, 96px); }
.avi-section--sm    { padding-block: 48px; }
.avi-section--lg    { padding-block: 144px; }

/* Buttons */
.avi-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--avi-btn-radius, 10px);
    font-family: var(--avi-font-body); font-weight: 700;
    cursor: pointer; border: none; text-decoration: none;
    white-space: nowrap; line-height: 1; transition: all 0.2s ease;
}
.avi-btn--primary {
    background: linear-gradient(135deg, #F5B040 0%, #E07010 100%);
    color: #1A1A1A;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 13px;
    box-shadow: 0 4px 20px rgba(240, 160, 48, 0.35);
}
.avi-btn--primary:hover {
    background: linear-gradient(135deg, #F8C060 0%, #F08020 100%);
    color: #1A1A1A;
    transform: translateY(-1px);
    box-shadow: 0 6px 28px rgba(240, 160, 48, 0.5);
}
.avi-btn--ghost {
    background: transparent;
    color: var(--avi-btn-ghost-text, #A890FF);
    border: 1.5px solid var(--avi-btn-ghost-border, rgba(107,70,232,0.55));
}
.avi-btn--ghost:hover {
    background: var(--avi-btn-ghost-hover-bg, rgba(107,70,232,0.12));
    color: var(--avi-text, #EEEEFF);
}
.avi-btn--sm { padding: 8px 16px; font-size: 12px; }
.avi-btn--lg { padding: 16px 32px; font-size: 14px; }

/* Cards */
.avi-card {
    background: var(--avi-surface, #0D1E38);
    border: 1px solid var(--avi-border, rgba(255,255,255,0.07));
    border-radius: var(--avi-radius-lg, 16px);
    padding: 28px;
    transition: border-color 0.2s, transform 0.2s;
}
.avi-card:hover { border-color: var(--avi-border-strong, rgba(255,255,255,0.14)); }
.avi-card--glow:hover {
    border-color: var(--avi-border-primary, rgba(59,111,212,0.35));
    box-shadow: var(--avi-shadow-primary, 0 4px 32px rgba(59,111,212,0.2));
}

/* Gradient text */
.avi-gradient-text {
    background: var(--avi-gradient-primary, 
                linear-gradient(135deg, #F5B040 0%, #E07010 100%));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glow top overlay */
.avi-glow-top::before {
    content: ''; position: absolute; inset: 0;
    background: var(--avi-gradient-glow,
                radial-gradient(ellipse 70% 50% at 50% 0%, 
                rgba(59,111,212,0.15) 0%, transparent 70%));
    pointer-events: none; z-index: 0;
}

/* Badge */
.avi-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 14px; border-radius: 999px; font-size: 11px;
    font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase;
    background: rgba(255,255,255,0.05);
    color: rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.15);
}

/* Grid helpers */
.avi-grid      { display: grid; gap: 24px; }
.avi-grid--2   { grid-template-columns: repeat(2, 1fr); }
.avi-grid--3   { grid-template-columns: repeat(3, 1fr); }
.avi-grid--4   { grid-template-columns: repeat(4, 1fr); }
.avi-grid--auto{ grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); }

/* Utilities */
.avi-text-center    { text-align: center; }
.avi-text-muted     { color: var(--avi-text-muted, #A0B4D0) !important; }
.avi-relative       { position: relative; }
.avi-overflow-hidden{ overflow: hidden; }
.avi-sr-only {
    position:absolute; width:1px; height:1px; padding:0;
    margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0;
}

/* Animations */
@keyframes aviFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
.avi-animate-fade-up    { animation: aviFadeUp 0.6s ease forwards; }
.avi-animate-delay-1    { animation-delay: 0.1s; opacity: 0; }
.avi-animate-delay-2    { animation-delay: 0.2s; opacity: 0; }
.avi-animate-delay-3    { animation-delay: 0.3s; opacity: 0; }

@media (prefers-reduced-motion: reduce) {
    .avi-animate-fade-up,
    .avi-animate-delay-1,
    .avi-animate-delay-2,
    .avi-animate-delay-3 { animation: none; opacity: 1; }
}

/* Mobile */
@media (max-width: 768px) {
    .avi-grid--2,
    .avi-grid--3,
    .avi-grid--4 { grid-template-columns: 1fr; }
    .avi-container { padding-inline: 16px; }
}

/* Phase 0 nav/footer helpers */
.avi-top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--avi-nav-height, 60px);
    background: var(--avi-nav-bg, #FFFFFF);
    border-bottom: 1px solid var(--avi-nav-border, rgba(0,0,0,0.08));
    z-index: 9999;
}
.avi-nav-wrap {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 0 20px;
}
.avi-nav-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #1A202C;
    text-decoration: none;
    font-weight: 800;
    letter-spacing: 0.06em;
}
.avi-nav-links {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    margin-right: auto;
    margin-left: 20px;
}
.avi-nav-link {
    color: var(--avi-nav-text, #2D3748);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}
.avi-nav-link:hover { color: var(--avi-nav-text-hover, #1A202C); }
.avi-nav-actions { display: inline-flex; align-items: center; gap: 12px; }
.avi-flag-list { display: inline-flex; gap: 4px; }
.avi-flag-btn {
    display: inline-flex;
    border: 0;
    background: transparent;
    padding: 0;
    cursor: pointer;
    opacity: 0.65;
    border-radius: 3px;
}
.avi-flag-btn:hover { opacity: 1; }
.avi-flag-btn.is-active { opacity: 1; transform: scale(1.1); box-shadow: 0 0 0 2px #3B6FD4; }
.avi-flag-img { width: 28px; height: 20px; border-radius: 3px; object-fit: cover; display: block; }
.avi-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 999px;
    padding: 8px 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 11px;
    color: #FFFFFF;
}
.avi-mini-footer {
    background: var(--avi-footer-bg, #080E1C);
    border-top: 1px solid var(--avi-footer-border, rgba(255,255,255,0.06));
    padding: 20px 0;
}
.avi-mini-footer-row {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    color: var(--avi-footer-text, #506080);
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.avi-mini-footer a { color: var(--avi-footer-text, #506080); text-decoration: none; }
.avi-mini-footer a:hover { color: var(--avi-footer-text-hover, #A0B4D0); }
.avi-flag-fallback {
    width: 28px;
    height: 20px;
    border-radius: 3px;
    display: inline-block;
}
.flag-en { background: linear-gradient(#012169 33%, #FFF 33% 67%, #C8102E 67%); }
.flag-fr { background: linear-gradient(90deg, #0055A4 33%, #FFF 33% 67%, #EF4135 67%); }
.flag-es { background: linear-gradient(#AA151B 25%, #F1BF00 25% 75%, #AA151B 75%); }