/* ============================================================
   O2FC — Styles partagés : inscription.php + connexion.php
   ============================================================ */

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

:root {
    --ins-primary:       #1565c0;
    --ins-primary-light: #1e88e5;
    --ins-primary-dark:  #0d47a1;
    --ins-accent:        #00b0ff;
    --ins-success:       #00c853;
    --ins-danger:        #f44336;
    --ins-warn:          #ff9800;
    --ins-bg:            #f0f4f8;
    --ins-surface:       #ffffff;
    --ins-surface2:      #f7f9fc;
    --ins-border:        #dde3ed;
    --ins-text:          #1a202c;
    --ins-text-muted:    #64748b;
    --ins-radius:        12px;
    --ins-shadow:        0 4px 24px rgba(21,101,192,.10);
    --ins-shadow-lg:     0 8px 40px rgba(21,101,192,.18);
    --ins-transition:    .22s cubic-bezier(.4,0,.2,1);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Poppins', sans-serif;
    background: var(--ins-bg);
    color: var(--ins-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── PAGE LAYOUT ── */
.ins-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 1rem 4rem;
}
.ins-main--center {
    justify-content: center;
}

/* ── CARD ── */
.card {
    background: var(--ins-surface);
    border-radius: var(--ins-radius);
    box-shadow: var(--ins-shadow);
    width: 100%;
    max-width: 760px;
    overflow: hidden;
}
.card--sm { max-width: 480px; box-shadow: var(--ins-shadow-lg); }

.card-header {
    background: linear-gradient(135deg, var(--ins-primary) 0%, var(--ins-primary-light) 100%);
    color: #fff;
    padding: 1.8rem 2rem 1.4rem;
}
.card-header--center {
    text-align: center;
    padding: 2rem 2rem 1.6rem;
}
.card-icon {
    width: 64px;
    height: 64px;
    background: rgba(255,255,255,.18);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 1rem;
}
.card-header h1 { font-size: 1.4rem;  font-weight: 700; margin-bottom: .3rem; }
.card-header h2 { font-size: 1.35rem; font-weight: 700; margin-bottom: .3rem; }
.card-header p  { font-size: .85rem; opacity: .85; }
.card-body { padding: 2rem; }
.card-footer {
    background: var(--ins-surface2);
    border-top: 1px solid var(--ins-border);
    padding: 1.2rem 2rem;
    text-align: center;
    font-size: .87rem;
    color: var(--ins-text-muted);
}
.card-footer a { color: var(--ins-primary); font-weight: 600; text-decoration: none; }
.card-footer a:hover { text-decoration: underline; }

/* ── FORM LAYOUT ── */
.form-section { margin-bottom: 1.8rem; }
.form-section-title {
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--ins-primary);
    border-bottom: 2px solid var(--ins-primary-light);
    padding-bottom: .4rem;
    margin-bottom: 1.2rem;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.col-span-2 { grid-column: span 2; }

/* ── FORM FIELDS ── */
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group + .form-group { margin-top: .6rem; }

.form-group label {
    font-size: .8rem;
    font-weight: 600;
    color: var(--ins-text-muted);
    text-transform: uppercase;
    letter-spacing: .4px;
}
.form-group label .req { color: var(--ins-danger); margin-left: 2px; }

.form-group input,
.form-group select,
.form-group textarea {
    border: 1.5px solid var(--ins-border);
    border-radius: 8px;
    padding: .65rem .9rem;
    font-family: 'Poppins', sans-serif;
    font-size: .9rem;
    color: var(--ins-text);
    background: var(--ins-surface2);
    transition: border-color var(--ins-transition), box-shadow var(--ins-transition);
    outline: none;
    width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--ins-primary-light);
    box-shadow: 0 0 0 3px rgba(30,136,229,.15);
    background: #fff;
}
.form-group textarea { resize: vertical; min-height: 80px; }

/* Password toggle */
.password-wrapper { position: relative; }
.password-wrapper input { padding-right: 2.8rem; }
.toggle-pw {
    position: absolute;
    right: .85rem;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--ins-text-muted);
    font-size: 1.1rem;
    user-select: none;
    display: inline-flex;
    align-items: center;
    line-height: 0;
}

/* Radio cards */
.radio-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.radio-card {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .55rem 1.1rem;
    border: 1.5px solid var(--ins-border);
    border-radius: 8px;
    cursor: pointer;
    transition: border-color var(--ins-transition), background var(--ins-transition);
    font-size: .88rem;
    font-weight: 500;
}
.radio-card input[type="radio"] { accent-color: var(--ins-primary); width: 16px; height: 16px; }
.radio-card:has(input:checked) {
    border-color: var(--ins-primary);
    background: rgba(21,101,192,.07);
    color: var(--ins-primary);
}

/* ── ALERTS ── */
.alert {
    border-radius: 8px;
    padding: .85rem 1.1rem;
    font-size: .87rem;
    font-weight: 500;
    display: none;
    margin-bottom: 1rem;
}
.alert.show { display: flex; align-items: center; gap: .6rem; }
.alert-error   { background: #fdecea; color: #b71c1c; border: 1px solid #ef9a9a; }
.alert-success { background: #e8f5e9; color: #1b5e20; border: 1px solid #a5d6a7; }
.alert-info    { background: #e3f2fd; color: #0d47a1; border: 1px solid #90caf9; }

/* ── BUTTONS ── */
.btn-row {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--ins-border);
    flex-wrap: wrap;
}
.btn {
    padding: .75rem 1.8rem;
    border-radius: 9px;
    font-family: 'Poppins', sans-serif;
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--ins-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    text-decoration: none;
}
.btn--full { width: 100%; margin-top: .4rem; }

.btn-primary {
    background: linear-gradient(135deg, var(--ins-primary), var(--ins-primary-light));
    color: #fff;
    box-shadow: 0 3px 12px rgba(21,101,192,.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(21,101,192,.38); }
.btn-secondary { background: var(--ins-surface2); color: var(--ins-text); border: 1.5px solid var(--ins-border); }
.btn-secondary:hover { background: var(--ins-border); }
.btn-ghost { background: transparent; color: var(--ins-text-muted); border: 1.5px solid var(--ins-border); }
.btn-ghost:hover { color: var(--ins-danger); border-color: var(--ins-danger); background: #fdecea; }
.btn-success {
    background: linear-gradient(135deg, #00c853, #00e676);
    color: #fff;
    box-shadow: 0 3px 12px rgba(0,200,83,.3);
}
.btn-success:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,200,83,.4); }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }

/* ── SAVE INFO BANNER ── */
.save-info {
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .78rem;
    color: var(--ins-text-muted);
    margin-bottom: 1rem;
    padding: .5rem .9rem;
    background: #e3f2fd;
    border-radius: 7px;
    border: 1px solid #90caf9;
}
.save-info .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--ins-primary-light);
    flex-shrink: 0;
}

/* ── CONFIRM CHECKBOX ── */
.confirm-box {
    display: flex;
    align-items: flex-start;
    gap: .9rem;
    background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
    border: 1.5px solid var(--ins-success);
    border-radius: 10px;
    padding: 1.2rem 1.4rem;
    cursor: pointer;
}
.confirm-box input[type="checkbox"] {
    width: 20px; height: 20px;
    accent-color: var(--ins-success);
    flex-shrink: 0; margin-top: 2px; cursor: pointer;
}
.confirm-box p { font-size: .88rem; line-height: 1.6; color: #2e7d32; font-weight: 500; }

/* ── LOADING OVERLAY ── */
.loading-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,.82);
    z-index: 999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
}
.loading-overlay.show { display: flex; }

.loading-overlay .ball-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.loading-overlay .ball-bounce {
    animation: ballBounce .55s ease-in-out infinite alternate;
}
.loading-overlay .ball-emoji {
    font-size: 56px;
    display: block;
    line-height: 1;
    animation: ballRoll 1.1s linear infinite;
    filter: drop-shadow(0 3px 5px rgba(0,0,0,0.15));
}
.loading-overlay .ball-shadow {
    width: 38px; height: 7px;
    background: rgba(0,0,0,0.16);
    border-radius: 50%;
    margin-top: 4px;
    animation: shadowPulse .55s ease-in-out infinite alternate;
}

@keyframes ballBounce {
    from { transform: translateY(0); }
    to   { transform: translateY(-30px); }
}
@keyframes ballRoll   { to { transform: rotate(360deg); } }
@keyframes shadowPulse {
    from { transform: scaleX(1);    opacity: .26; }
    to   { transform: scaleX(0.45); opacity: .07; }
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
    .form-grid { grid-template-columns: 1fr; }
    .form-grid.cols-3 { grid-template-columns: 1fr 1fr; }
    .col-span-2 { grid-column: span 1; }
    .card-body { padding: 1.2rem; }
    .btn-row { flex-direction: column; }
    .ins-main { padding: 1.25rem .75rem 2.5rem; }
    .form-section { margin-bottom: 1.4rem; }

    /* Empêche le zoom automatique iOS sur les champs de saisie (font-size < 16px) */
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .form-grid.cols-3 { grid-template-columns: 1fr; }
    .card-header { padding: 1.2rem 1rem .9rem; }
    .card-header--center { padding: 1.3rem 1rem 1rem; }
    .card-header h1 { font-size: 1.1rem; }
    .card-header h2 { font-size: 1.05rem; }
    .card-header p  { font-size: .78rem; }
    .card-body { padding: .85rem; }
    .card-footer { padding: .8rem 1rem; font-size: .82rem; }
    .card-icon { width: 44px; height: 44px; font-size: 1.3rem; margin-bottom: .5rem; }
    .btn { padding: .6rem 1.1rem; font-size: .84rem; }
    .btn-row { margin-top: 1.2rem; padding-top: .9rem; }
    .radio-group { gap: .35rem; }
    .radio-card { padding: .4rem .65rem; font-size: .81rem; }
    .save-info { font-size: .73rem; padding: .4rem .75rem; }
    .form-section { margin-bottom: 1.2rem; }
    .form-section-title { margin-bottom: .9rem; }
    .ins-main { padding: .75rem .5rem 2rem; }
    .form-group + .form-group { margin-top: .45rem; }
}

@media (max-width: 360px) {
    .ins-main { padding: .5rem .35rem 1.5rem; }
    .card-header--center { padding: 1rem .9rem .8rem; }
    .card-icon { width: 38px; height: 38px; font-size: 1.1rem; margin-bottom: .35rem; }
    .card-header h1 { font-size: 1rem; }
    .card-header p  { font-size: .75rem; }
    .confirm-box { padding: .9rem 1rem; gap: .6rem; }
    .confirm-box p { font-size: .82rem; line-height: 1.5; }
    .form-section-title { font-size: .73rem; margin-bottom: .7rem; }
}