/* =============================================
   Recherche Santé — styles globaux
   ============================================= */

:root {
    --blue-dark:   #0f2b5b;
    --blue-mid:    #1a4a8a;
    --blue-light:  #2d7dd2;
    --teal:        #0da57a;
    --teal-light:  #12c993;
    --gold:        #e8a020;
    --bg:          #f4f7fc;
    --white:       #ffffff;
    --text:        #1a2035;
    --text-muted:  #5a6a80;
    --border:      #dde4f0;
    --radius:      10px;
    --shadow:      0 4px 24px rgba(15,43,91,.10);
    --shadow-lg:   0 8px 40px rgba(15,43,91,.16);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    font-size: 1rem;
}

a { color: var(--blue-light); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }

h1 { font-size: 2.8rem; line-height: 1.2; font-weight: 800; }
h2 { font-size: 2rem;   line-height: 1.25; font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { color: var(--text-muted); }

/* ---- NAVBAR ---- */
nav {
    background: var(--blue-dark);
    padding: 0.9rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.nav-logo {
    font-size: 1.2rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -.5px;
}
.nav-logo span { color: var(--teal-light); }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: rgba(255,255,255,.8); font-size: .9rem; font-weight: 500; }
.nav-links a:hover { color: #fff; text-decoration: none; }
.nav-links .btn-nav {
    background: var(--teal);
    color: #fff !important;
    padding: .45rem 1.1rem;
    border-radius: 20px;
    font-size: .88rem;
}
.nav-links .btn-nav:hover { background: var(--teal-light); text-decoration: none; }

/* ---- HERO ---- */
.hero {
    background: linear-gradient(135deg, var(--blue-dark) 0%, var(--blue-mid) 55%, #163f7e 100%);
    color: #fff;
    padding: 6rem 0 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 70% 30%, rgba(45,125,210,.18) 0%, transparent 60%);
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { color: #fff; margin-bottom: 1.2rem; }
.hero h1 span { color: var(--teal-light); }
.hero p.lead {
    font-size: 1.18rem;
    color: rgba(255,255,255,.82);
    max-width: 680px;
    margin: 0 auto 2.2rem;
}
.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 2.5rem; }
.badge-sources {
    display: flex;
    gap: .6rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: .5rem;
}
.badge-sources span {
    background: rgba(255,255,255,.12);
    color: rgba(255,255,255,.85);
    font-size: .78rem;
    padding: .25rem .75rem;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.2);
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-block;
    padding: .75rem 1.8rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all .2s;
    text-align: center;
}
.btn-primary {
    background: var(--teal);
    color: #fff;
    box-shadow: 0 4px 16px rgba(13,165,122,.35);
}
.btn-primary:hover { background: var(--teal-light); text-decoration: none; color: #fff; }
.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,.55);
}
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.08); text-decoration: none; color: #fff; }
.btn-blue  { background: var(--blue-light); color: #fff; }
.btn-blue:hover { background: var(--blue-mid); text-decoration: none; color: #fff; }
.btn-gold  { background: var(--gold); color: #fff; }
.btn-gold:hover { background: #d4901a; text-decoration: none; color: #fff; }
.btn-ghost {
    background: #fff;
    color: var(--blue-dark);
    border: 2px solid var(--border);
}
.btn-ghost:hover { border-color: var(--blue-light); text-decoration: none; }
.btn-sm { padding: .5rem 1.2rem; font-size: .9rem; }
.btn-lg { padding: 1rem 2.4rem; font-size: 1.1rem; }

/* ---- FEATURES ---- */
.features { background: #fff; }
.section-title { text-align: center; margin-bottom: 3rem; }
.section-title h2 { margin-bottom: .6rem; }
.section-title p { font-size: 1.05rem; color: var(--text-muted); max-width: 560px; margin: 0 auto; }

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}
.feature-card {
    padding: 2rem 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg);
    text-align: center;
}
.feature-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    display: block;
}
.feature-card h3 { margin-bottom: .5rem; color: var(--blue-dark); }
.feature-card p { font-size: .93rem; }

/* ---- PRICING ---- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    align-items: start;
    margin-top: 3rem;
}
.plan-card {
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 14px;
    padding: 2.2rem 1.8rem;
    position: relative;
    transition: box-shadow .2s, border-color .2s;
}
.plan-card:hover { box-shadow: var(--shadow-lg); }
.plan-card.plan-featured {
    border-color: var(--blue-light);
    box-shadow: var(--shadow-lg);
}
.plan-card.plan-assoc {
    border-color: var(--gold);
}
.plan-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--blue-light);
    color: #fff;
    font-size: .78rem;
    font-weight: 700;
    padding: .3rem 1rem;
    border-radius: 20px;
    white-space: nowrap;
    letter-spacing: .5px;
}
.plan-badge.gold { background: var(--gold); }
.plan-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blue-dark);
    margin-bottom: .5rem;
}
.plan-price {
    font-size: 2.6rem;
    font-weight: 800;
    color: var(--blue-dark);
    line-height: 1;
    margin-bottom: .2rem;
}
.plan-price sup { font-size: 1.1rem; vertical-align: super; font-weight: 600; }
.plan-price sub { font-size: .95rem; font-weight: 400; color: var(--text-muted); }
.plan-tagline { color: var(--text-muted); font-size: .9rem; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 1.3rem; }
.plan-features { list-style: none; margin-bottom: 2rem; display: flex; flex-direction: column; gap: .65rem; }
.plan-features li { font-size: .93rem; display: flex; align-items: flex-start; gap: .5rem; }
.plan-features li::before { content: '✓'; color: var(--teal); font-weight: 700; flex-shrink: 0; margin-top: .05rem; }
.plan-features li.no::before { content: '—'; color: #bbb; }
.plan-features li.no { color: #aaa; }
.plan-cta { display: block; width: 100%; text-align: center; }

/* ---- DONATION ---- */
.donation-section {
    background: linear-gradient(135deg, #fff8ec 0%, #fffdf5 100%);
    border-top: 1px solid #fde8b0;
    border-bottom: 1px solid #fde8b0;
}
.donation-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.donation-amounts { display: flex; gap: .75rem; flex-wrap: wrap; margin: 1.2rem 0; }
.amount-btn {
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: .55rem 1.1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s;
    color: var(--blue-dark);
}
.amount-btn:hover, .amount-btn.active {
    border-color: var(--gold);
    background: #fff8ec;
}
.donation-note { font-size: .85rem; color: var(--text-muted); margin-top: .75rem; }

/* ---- TESTIMONIAL / STATS ---- */
.stats-section { background: var(--blue-dark); color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 2rem; text-align: center; }
.stat-number { font-size: 2.6rem; font-weight: 800; color: var(--teal-light); }
.stat-label  { font-size: .9rem; color: rgba(255,255,255,.7); margin-top: .2rem; }

/* ---- ASSOCIES ---- */
.assoc-perks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.2rem;
    margin-top: 2rem;
}
.assoc-perk {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem;
    display: flex;
    gap: .8rem;
    align-items: flex-start;
}
.assoc-perk-icon { font-size: 1.4rem; flex-shrink: 0; }
.assoc-perk h4 { font-size: .95rem; color: var(--blue-dark); margin-bottom: .2rem; }
.assoc-perk p  { font-size: .83rem; }

/* ---- HOW IT WORKS ---- */
.steps { display: flex; gap: 2rem; flex-wrap: wrap; counter-reset: steps; margin-top: 2.5rem; }
.step { flex: 1; min-width: 180px; counter-increment: steps; position: relative; }
.step::before {
    content: counter(steps);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--blue-light);
    color: #fff;
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: .8rem;
}
.step h4 { font-size: 1rem; color: var(--blue-dark); margin-bottom: .35rem; }
.step p  { font-size: .9rem; }

/* ---- FOOTER ---- */
footer {
    background: var(--blue-dark);
    color: rgba(255,255,255,.7);
    padding: 3rem 0 2rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}
.footer-brand { font-size: 1.15rem; font-weight: 800; color: #fff; margin-bottom: .8rem; }
.footer-brand span { color: var(--teal-light); }
.footer-col h4 { color: #fff; font-size: .95rem; margin-bottom: .9rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .5rem; }
.footer-col ul a { color: rgba(255,255,255,.65); font-size: .88rem; }
.footer-col ul a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.1);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: .82rem;
    flex-wrap: wrap;
    gap: .5rem;
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-legal { color: rgba(255,255,255,.4); font-size: .78rem; margin-top: .5rem; }

/* ---- ALERT BANNER ---- */
.alert-beta {
    background: linear-gradient(90deg, var(--blue-mid), var(--teal));
    color: #fff;
    text-align: center;
    padding: .6rem 1rem;
    font-size: .88rem;
    font-weight: 500;
}
.alert-beta a { color: #fff; text-decoration: underline; }

/* ---- FORM ---- */
.form-box {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 2.5rem;
    max-width: 480px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}
.form-box h2 { margin-bottom: .5rem; font-size: 1.5rem; }
.form-box p.sub { font-size: .9rem; margin-bottom: 1.8rem; }
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: .35rem; color: var(--blue-dark); }
.form-group input, .form-group select {
    width: 100%;
    padding: .7rem .9rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: .95rem;
    outline: none;
    transition: border-color .2s;
    background: #fff;
}
.form-group input:focus, .form-group select:focus { border-color: var(--blue-light); }
.form-group .hint { font-size: .8rem; color: var(--text-muted); margin-top: .25rem; }
.form-divider { display: flex; align-items: center; gap: .75rem; margin: 1.2rem 0; }
.form-divider::before, .form-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.form-divider span { font-size: .82rem; color: var(--text-muted); }
.form-submit { width: 100%; padding: .85rem; font-size: 1rem; }
.form-login-link { text-align: center; font-size: .88rem; margin-top: 1.2rem; color: var(--text-muted); }

/* ---- DONATION PAGE ---- */
.donation-page-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: start;
}
.impact-item { display: flex; gap: 1rem; margin-bottom: 1.2rem; }
.impact-icon { font-size: 1.6rem; flex-shrink: 0; }
.impact-item h4 { color: var(--blue-dark); font-size: .95rem; margin-bottom: .2rem; }
.impact-item p  { font-size: .88rem; }
.amount-input-group { display: flex; margin: 1.2rem 0; }
.amount-input-group input {
    flex: 1;
    padding: .7rem 1rem;
    border: 2px solid var(--border);
    border-right: none;
    border-radius: 7px 0 0 7px;
    font-size: 1.1rem;
    font-weight: 600;
    outline: none;
}
.amount-input-group input:focus { border-color: var(--gold); }
.amount-input-group .currency {
    padding: .7rem 1rem;
    background: #f5f5f5;
    border: 2px solid var(--border);
    border-left: none;
    border-radius: 0 7px 7px 0;
    font-weight: 600;
    color: var(--text-muted);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.55rem; }
    .section { padding: 3rem 0; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .donation-inner { grid-template-columns: 1fr; gap: 2rem; }
    .donation-page-grid { grid-template-columns: 1fr; }
    .nav-links .nav-hide { display: none; }
    .pricing-grid { grid-template-columns: 1fr; }
    .hero { padding: 4rem 0 3.5rem; }
}