/* ===== THÈME PHP — php45gm64f ===== */
:root {
    --bg:          #f0f4f8;
    --surface:     #ffffff;
    --border:      #8793a8;
    --border-gold: #4f5b93;
    --text:        #1a1f2e;
    --text2:       #3d4a6b;
    --accent:      #4f5b93;
    --accent2:     #6875aa;
    --gold:        #7a84b8;
    --shadow:      rgba(79,91,147,0.12);
    --input-bg:    #f7f9fc;
    --error:       #c0392b;
    --success:     #2e7d52;
    --modal-bg:    rgba(10,14,30,0.6);
    --topbar-bg:   #f0f4f8;
}

[data-theme="dark"] {
    --bg:          #0d1117;
    --surface:     #161b27;
    --border:      #2d3550;
    --border-gold: #4f5b93;
    --text:        #e6eaf5;
    --text2:       #8893b8;
    --accent:      #7a84b8;
    --accent2:     #9099cc;
    --gold:        #7a84b8;
    --shadow:      rgba(0,0,0,0.4);
    --input-bg:    #111622;
    --modal-bg:    rgba(0,0,0,0.75);
    --topbar-bg:   #0d1117;
}

/* Bandeau logo : fond bleu PHP */
.logo-band {
    background: #4f5b93 !important;
    border-bottom-color: #7a84b8 !important;
}
.logo-fallback-name,
.logo-domain-name {
    color: #ffffff !important;
}
.logo-sub {
    color: rgba(255,255,255,0.65) !important;
    opacity: 1 !important;
}

/* Flap enveloppe */
.envelope-flap {
    background: linear-gradient(135deg, #3d4880 0%, #6875aa 50%, #3d4880 100%) !important;
}

/* Bouton submit */
.btn-submit {
    background: #4f5b93 !important;
    box-shadow: 0 4px 18px rgba(79,91,147,0.3) !important;
}
.btn-submit:hover {
    background: #6875aa !important;
    box-shadow: 0 6px 24px rgba(79,91,147,0.45) !important;
}

/* Lang dropdown border */
.lang-btn { border-color: #4f5b93 !important; }
.lang-btn:hover { border-color: #7a84b8 !important; }
.lang-btn .arrow { border-top-color: #7a84b8 !important; }