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

:root {
    --aci-green:  #1BA455;
    --aci-green2: #027031;
    --aci-orange: #ED7F3A;
    --text:       #444444;
    --text-muted: #7A7A7A;
    --border:     #DFDFDF;
    --bg-soft:    #F5F5F5;
}

body {
    font-family: 'Inter', sans-serif;
    background: #fff;
    color: var(--text);
    overflow-x: hidden;
    min-height: 100vh;
}

/* ── NAV ─────────────────────────────────────── */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1rem 3rem;
    background: rgba(255,255,255,.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(8px);
}
nav .logo img { height: 36px; }
.btn-nav-outline {
    border: 1.5px solid var(--border);
    color: var(--text); background: transparent;
    padding: .48rem 1.3rem; border-radius: 50px;
    font-size: .84rem; font-weight: 500;
    cursor: pointer; text-decoration: none;
    display: inline-flex; align-items: center; gap: .5rem;
    transition: all .2s ease;
}
.btn-nav-outline:hover { border-color: var(--aci-green); color: var(--aci-green); }

/* ── LAYOUT SPLIT ────────────────────────────── */
.login-page {
    display: flex;
    min-height: 100vh;
    padding-top: 65px;
}

/* ── PANNEAU GAUCHE — FORMULAIRE ─────────────── */
.login-panel-form {
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 4rem;
    background: #fff;
}
.login-form-wrap { width: 100%; max-width: 420px; }

.login-tag {
    font-size: .68rem; letter-spacing: .2em; text-transform: uppercase;
    color: var(--aci-green); font-weight: 700; margin-bottom: .6rem;
}
.login-title {
    font-family: 'Inter', sans-serif;
    font-size: 2rem; font-weight: 700;
    color: var(--text); margin-bottom: .4rem; line-height: 1.2;
}
.login-sub {
    font-size: .88rem; color: var(--text-muted);
    margin-bottom: 2.2rem; line-height: 1.6;
}

/* Champs */
.login-field { margin-bottom: 1rem; }
.login-field label { display: block; font-size: .79rem; font-weight: 500; color: var(--text); margin-bottom: .38rem; }
.fg-input {
    width: 100%; padding: .65rem 1rem;
    border: 1.5px solid var(--border); border-radius: .5rem;
    font-family: 'Inter', sans-serif; font-size: .86rem; color: var(--text);
    background: #fff; outline: none; transition: border-color .2s, box-shadow .2s;
}
.fg-input:focus { border-color: var(--aci-green); box-shadow: 0 0 0 3px rgba(27,164,85,.1); }
.fg-input::placeholder { color: #b0b8c1; }

/* Erreur */
.login-error {
    background: #fff5f5; border: 1px solid #fca5a5;
    border-radius: .6rem; padding: .85rem 1.1rem;
    font-size: .84rem; color: #b91c1c;
    display: flex; align-items: center; gap: .6rem;
    margin-bottom: 1.4rem;
}

/* Bouton Microsoft */
.btn-microsoft {
    display: flex; align-items: center; justify-content: center; gap: .75rem;
    width: 100%; padding: .85rem 1.5rem;
    background: var(--aci-green); color: #fff;
    border: none; border-radius: .6rem;
    font-family: 'Inter', sans-serif; font-size: .92rem; font-weight: 600;
    cursor: pointer; text-decoration: none;
    transition: all .22s ease;
    box-shadow: 0 4px 16px rgba(27,164,85,.25);
}
.btn-microsoft:hover { background: var(--aci-green2); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 22px rgba(27,164,85,.35); }

/* Séparateur */
.login-divider {
    display: flex; align-items: center; gap: 1rem;
    margin: 1.4rem 0;
}
.login-divider::before,
.login-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.login-divider span { font-size: .78rem; color: var(--text-muted); white-space: nowrap; }

/* Bouton admin */
.btn-admin {
    display: flex; align-items: center; justify-content: center; gap: .6rem;
    width: 100%; padding: .8rem 1.5rem;
    background: transparent; color: var(--text-muted);
    border: 1.5px solid var(--border); border-radius: .6rem;
    font-family: 'Inter', sans-serif; font-size: .84rem; font-weight: 500;
    cursor: pointer; text-decoration: none;
    transition: all .22s ease;
}
.btn-admin:hover { border-color: var(--aci-green); color: var(--aci-green); }

/* ── PANNEAU DROIT — VISUEL ───────────────────── */
.login-panel-visual {
    width: 50%;
    background: #0b2a18;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

/* Image animée — effet 3D gauche / droite */
.login-panel-visual { perspective: 1200px; }

.login-visual-bg {
    position: absolute;
    inset: -8%;
    width: 116%;
    height: 116%;
    object-fit: cover;
    object-position: center 55%;
    z-index: 0;
    transform-origin: center center;
    animation: login-3d 22s ease-in-out infinite alternate;
}
@keyframes login-3d {
    0%   { transform: scale(1.06) rotateY(-4deg) translateX(-1.5%); }
    50%  { transform: scale(1.10) rotateY(0deg)  translateX(0%);    }
    100% { transform: scale(1.06) rotateY(4deg)  translateX(1.5%);  }
}

/* Overlay gradient */
.login-visual-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(160deg, rgba(27,164,85,.18) 0%, rgba(0,30,15,.65) 100%);
}

.login-visual-text {
    text-align: center;
    color: #fff;
    position: relative;
    z-index: 2;
    margin-bottom: 2rem;
}
.login-visual-badge {
    display: inline-flex; align-items: center; gap: .4rem;
    background: rgba(255,255,255,.15); backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.28); color: #fff;
    padding: .28rem .9rem; border-radius: 50px;
    font-size: .68rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
    margin-bottom: 1.2rem;
}
.login-visual-title {
    font-family: 'Inter', sans-serif;
    font-size: clamp(1.6rem, 2.5vw, 2.2rem); font-weight: 700;
    color: #fff; line-height: 1.25; margin-bottom: .7rem;
}
.login-visual-title em { font-style: italic; color: rgba(237,127,58,.9); }
.login-visual-sub {
    font-size: .88rem; color: rgba(255,255,255,.7);
    font-family: 'Inter', sans-serif; font-style: italic; font-weight: 300;
}

/* Avion */
.login-aircraft-wrap {
    position: relative; width: 100%; max-width: 520px; z-index: 2;
}
.login-aircraft-glow {
    position: absolute; bottom: 0; left: 10%;
    width: 80%; height: 40%;
    background: radial-gradient(ellipse, rgba(27,164,85,.25) 0%, transparent 70%);
    filter: blur(30px);
}
.login-aircraft-img {
    width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,.3));
    animation: none;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-10px); }
}

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 900px) {
    nav { padding: 1rem 1.5rem; }
    .login-page { flex-direction: column; padding-top: 60px; }
    .login-panel-visual { width: 100%; padding: 2.5rem 1.5rem; order: -1; min-height: 280px; }
    .login-panel-form   { width: 100%; padding: 2.5rem 1.5rem; }
    .login-aircraft-wrap { max-width: 320px; }
    .login-visual-title { font-size: 1.5rem; }
}
@media (max-width: 480px) {
    nav { padding: .85rem 1.2rem; }
    nav .logo img { height: 28px; }
    .btn-nav-outline { padding: .38rem .85rem; font-size: .76rem; }
    .login-panel-form { padding: 2rem 1.2rem; }
    .login-title { font-size: 1.6rem; }
    .login-panel-visual { min-height: 220px; padding: 2rem 1rem; }
    .login-aircraft-wrap { max-width: 240px; }
}