/* ============================================
   MOBILE HERO BACKGROUND - SCROLL LAYOUT
   Logo plein écran + Formulaire en scroll
============================================ */

:root {
    --izzy-primary-rgb: 0, 188, 212; 
    --izzy-primary: #00bcd4;
    --izzy-dark: #0b3a53;
    --izzy-darker: #001f3f;
}

/* Canvas container */
.mobile-hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    mix-blend-mode: screen;
}

/* Vignette */
.mobile-hero-vignette {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 20%, #000 130%);
    z-index: 2;
    pointer-events: none;
    opacity: 0.6;
}

/* Grille subtile */
.mobile-hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(var(--izzy-primary-rgb), 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--izzy-primary-rgb), 0.05) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 2;
    mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
}

/* Stage principal - CENTRÉ VERTICALEMENT */
.mobile-hero-stage {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transform-style: preserve-3d;
    transition: transform 0.1s ease-out;
}

/* HUD Circle */
.mobile-hero-hud {
    position: absolute;
    width: 450px;
    height: 450px;
    border-radius: 50%;
    border: 1px solid rgba(var(--izzy-primary-rgb), 0.15);
    box-shadow: 0 0 40px rgba(var(--izzy-primary-rgb), 0.05);
    z-index: -1;
    animation: mobileHeroSpin 60s linear infinite;
}

.mobile-hero-hud::after {
    content: '';
    position: absolute;
    inset: 20px;
    border-radius: 50%;
    border: 1px dashed rgba(var(--izzy-primary-rgb), 0.3);
    animation: mobileHeroSpinReverse 40s linear infinite;
}

/* Logo wrapper */
.mobile-hero-logo-wrapper {
    position: relative;
    width: 240px;
    height: 240px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    animation: mobileHeroFloat 6s ease-in-out infinite;
}

.mobile-hero-logo {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 25px rgba(var(--izzy-primary-rgb), 0.5));
    min-height: 100px;
    object-fit: contain;
}

.mobile-hero-glow {
    position: absolute;
    width: 180px;
    height: 180px;
    background: rgba(var(--izzy-primary-rgb), 0.15);
    filter: blur(50px);
    z-index: -1;
    border-radius: 50%;
    animation: mobileHeroPulse 4s ease-in-out infinite;
}

/* Texte */
.mobile-hero-text {
    text-align: center;
    position: relative;
}

.mobile-hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.4em;
    margin-bottom: 1rem;
    text-shadow: 0 0 30px rgba(var(--izzy-primary-rgb), 0.6);
    opacity: 0;
    animation: mobileHeroReveal 2s cubic-bezier(0.2, 0.8, 0.2, 1) forwards 0.5s;
}

.mobile-hero-subtitle {
    font-size: 1rem;
    color: var(--izzy-primary);
    font-weight: 500;
    letter-spacing: 0.6em;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
    animation: mobileHeroFadeUp 1.5s ease-out forwards 1.2s;
}

.mobile-hero-subtitle::before, 
.mobile-hero-subtitle::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--izzy-primary), transparent);
}

.mobile-hero-subtitle::before { right: 100%; margin-right: 15px; }
.mobile-hero-subtitle::after { left: 100%; margin-left: 15px; }

/* Indicateur de scroll */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: mobileHeroFadeUp 1.5s ease-out forwards 2s;
}

.scroll-indicator-text {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.scroll-indicator-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--izzy-primary);
    border-bottom: 2px solid var(--izzy-primary);
    transform: rotate(45deg);
    animation: bounceArrow 2s ease-in-out infinite;
}

@keyframes bounceArrow {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(8px); }
}

/* Animations */
@keyframes mobileHeroSpin { 
    100% { transform: rotate(360deg); } 
}

@keyframes mobileHeroSpinReverse { 
    100% { transform: rotate(-360deg); } 
}

@keyframes mobileHeroFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes mobileHeroPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

@keyframes mobileHeroReveal {
    0% { opacity: 0; letter-spacing: 1em; filter: blur(15px); }
    100% { opacity: 1; letter-spacing: 0.4em; filter: blur(0); }
}

@keyframes mobileHeroFadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Mobile */
@media (max-width: 768px) {
    .mobile-hero-hud { 
        width: 320px; 
        height: 320px; 
    }
    
    .mobile-hero-logo-wrapper { 
        width: 180px; 
        height: 180px; 
    }
    
    .mobile-hero-title { 
        font-size: 1.8rem; 
        letter-spacing: 0.25em; 
    }
    
    .mobile-hero-subtitle { 
        font-size: 0.85rem; 
        letter-spacing: 0.4em; 
    }
}

/* Très petits écrans */
@media (max-width: 375px) {
    .mobile-hero-hud { 
        width: 280px; 
        height: 280px; 
    }
    
    .mobile-hero-logo-wrapper {
        width: 140px;
        height: 140px;
    }
    
    .mobile-hero-title {
        font-size: 1.4rem;
        letter-spacing: 0.2em;
    }
    
    .mobile-hero-subtitle {
        font-size: 0.7rem;
        letter-spacing: 0.3em;
    }
}