/* ============================================================
   SEQUOIA DEVELOPMENT SOLUTIONS — style.css
   ============================================================ */

/* ---- Google Fonts (chargées depuis index.html) ------------ */

/* ---- Variables -------------------------------------------- */
:root {
  --teal-deep:    #052e38;
  --teal-mid:     #074d62;
  --teal-light:   #0a7a8f;
  --green:        #7DC24B;
  --green-dark:   #5a9535;
  --green-light:  #a3d96b;
  --white:        #ffffff;
  --off-white:    #f4f7f5;
  --gray-light:   #e8ede9;
  --gray-mid:     #8fa89a;
  --gold:         #c9a84c;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;
  --nav-h:        80px;
  --ease:         cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ---- Reset & Base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; font-size: 16px; }
body  {
  font-family: var(--font-body);
  background:  var(--teal-deep);
  color:       var(--white);
  overflow-x:  hidden;
  line-height: 1.6;
}
img   { display: block; max-width: 100%; }
a     { text-decoration: none; color: inherit; }
ul    { list-style: none; }

/* ---- Scroll Animations ------------------------------------ */
.reveal        { opacity: 0; transform: translateY(40px);  transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal-left   { opacity: 0; transform: translateX(-50px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal-right  { opacity: 0; transform: translateX(50px);  transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.visible,
.reveal-left.visible,
.reveal-right.visible { opacity: 1; transform: translate(0); }
.delay-1 { transition-delay: .15s; }
.delay-2 { transition-delay: .30s; }
.delay-3 { transition-delay: .45s; }
.delay-4 { transition-delay: .60s; }

/* ============================================================
   NAV
   ============================================================ */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  height:    var(--nav-h);
  z-index:   1000;
  display:   flex;
  align-items:     center;
  justify-content: space-between;
  padding:   0 5%;
  transition: background .4s, box-shadow .4s;
}
nav.scrolled {
  background:    rgba(5,46,56,.97);
  backdrop-filter: blur(12px);
  box-shadow:    0 2px 30px rgba(0,0,0,.3);
}

/* Logo */
.nav-logo        { display: flex; align-items: center; gap: 12px; }
.nav-logo img    { height: 52px; width: auto; border-radius: 8px; object-fit: contain; }
.nav-logo-text   { display: flex; flex-direction: column; line-height: 1.1; }
.nav-logo-text .brand  { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; letter-spacing: .12em; }
.nav-logo-text .sub    { font-size: .6rem; font-weight: 300; letter-spacing: .22em; color: var(--green); text-transform: uppercase; }

/* Links */
.nav-links       { display: flex; gap: 2.5rem; align-items: center; }
.nav-links a     { font-size: .82rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.8); transition: color .3s; position: relative; }
.nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; right:0; height:1px; background:var(--green); transform:scaleX(0); transition:transform .3s; }
.nav-links a:hover  { color: var(--white); }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta         { background: var(--green) !important; color: var(--teal-deep) !important; padding: 10px 22px; border-radius: 3px; font-weight: 600 !important; transition: background .3s, transform .2s !important; }
.nav-cta:hover   { background: var(--green-light) !important; transform: translateY(-1px); }
.nav-cta::after  { display: none !important; }

/* Hamburger */
.hamburger          { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span     { display: block; width: 25px; height: 2px; background: var(--white); transition: all .3s; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu       { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; background: rgba(5,46,56,.98); backdrop-filter: blur(20px); padding: 2rem 5%; flex-direction: column; gap: 1.5rem; z-index: 999; border-top: 1px solid rgba(125,194,75,.3); }
.mobile-menu a     { font-size: 1rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.85); padding: .5rem 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.mobile-menu.open  { display: flex; }

/* ============================================================
   HERO
   ============================================================ */
#hero            { position: relative; height: 100vh; min-height: 680px; display: flex; align-items: center; overflow: hidden; }
.hero-bg         { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.08); transition: transform 12s ease-out; }
.hero-bg.loaded  { transform: scale(1); }
.hero-overlay    { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(5,46,56,.92) 0%, rgba(5,46,56,.75) 50%, rgba(5,46,56,.35) 100%); }
.hero-content    { position: relative; z-index: 2; padding: 0 8%; max-width: 760px; }

.hero-badge      { display: inline-flex; align-items: center; gap: 8px; background: rgba(125,194,75,.15); border: 1px solid rgba(125,194,75,.4); border-radius: 2px; padding: 6px 14px; font-size: .7rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--green); margin-bottom: 1.8rem; animation: fadeSlideUp 1s var(--ease) .2s both; }
.hero-badge::before { content:''; width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }

.hero-title      { font-family: var(--font-display); font-size: clamp(2.8rem,5.5vw,5rem); font-weight: 300; line-height: 1.1; margin-bottom: 1.5rem; animation: fadeSlideUp 1s var(--ease) .4s both; }
.hero-title strong { font-weight: 700; color: var(--green); display: block; }
.hero-subtitle   { font-size: clamp(1rem,1.8vw,1.2rem); font-weight: 300; color: rgba(255,255,255,.75); line-height: 1.7; margin-bottom: 2.5rem; max-width: 540px; animation: fadeSlideUp 1s var(--ease) .6s both; }
.hero-actions    { display: flex; gap: 1rem; flex-wrap: wrap; animation: fadeSlideUp 1s var(--ease) .8s both; }

.hero-stats      { position: absolute; bottom: 3rem; right: 8%; display: flex; flex-direction: column; gap: 1.5rem; animation: fadeSlideUp 1s var(--ease) 1s both; }
.hero-stat       { text-align: right; border-right: 2px solid var(--green); padding-right: 1rem; }
.hero-stat-num   { font-family: var(--font-display); font-size: 2rem; font-weight: 700; line-height: 1; }
.hero-stat-label { font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.55); }
#hero-scroll-btn {
display: none;
}
.hero-scroll     { position: absolute; bottom: 2.5rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; animation: fadeSlideUp 1s var(--ease) 1.2s both; cursor: pointer; background: transparent; border: none;}
.hero-scroll span { font-size: .65rem; letter-spacing: .2em; text-transform: uppercase; color: rgba(125, 194, 75, 1);
font-weight: 900;
padding: 5px; }
.scroll-line     { width: 3px; height: 50px; background: linear-gradient(to bottom, rgba(125,194,75,.8), transparent); animation: scrollDown 2s ease-in-out infinite; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary { background: var(--green); color: var(--teal-deep); padding: 14px 32px; font-weight: 600; font-size: .88rem; letter-spacing: .05em; border-radius: 3px; border: none; cursor: pointer; transition: all .3s; display: inline-block; }
.btn-primary:hover { background: var(--green-light); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(125,194,75,.35); }
.btn-outline  { background: transparent; color: var(--white); padding: 14px 32px; font-weight: 500; font-size: .88rem; letter-spacing: .05em; border-radius: 3px; border: 1px solid rgba(255,255,255,.4); cursor: pointer; transition: all .3s; display: inline-block; }
.btn-outline:hover  { border-color: var(--white); background: rgba(255,255,255,.08); }

/* ============================================================
   SECTION BASE
   ============================================================ */
section { padding: 100px 8%; }

.section-tag   { display: inline-flex; align-items: center; gap: 10px; font-size: .68rem; font-weight: 600; letter-spacing: .25em; text-transform: uppercase; color: var(--green); margin-bottom: 1rem; }
.section-tag::before { content: ''; width: 30px; height: 1px; background: var(--green); }
.section-tag.dark { color: var(--teal-deep); }
.section-tag.dark::before { background: var(--teal-deep); }

.section-title { font-family: var(--font-display); font-size: clamp(2.2rem,4vw,3.5rem); font-weight: 300; line-height: 1.2; margin-bottom: 1.5rem; }
.section-title strong { font-weight: 700; }
.section-title.dark   { color: var(--teal-deep); }
.section-body  { font-size: 1rem; font-weight: 300; line-height: 1.8; color: rgba(255,255,255,.72); max-width: 600px; }
.section-body.dark { color: rgba(5,46,56,.65); }

/* ============================================================
   À PROPOS
   ============================================================ */
#apropos { background: var(--teal-deep); position: relative; overflow: hidden; }
#apropos::before { content:''; position:absolute; top:-200px; right:-200px; width:600px; height:600px; border-radius:50%; background:radial-gradient(circle, rgba(125,194,75,.06) 0%, transparent 70%); pointer-events:none; }

.apropos-grid   { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }

.apropos-quote  { position: relative; padding: 2.5rem; border: 1px solid rgba(125,194,75,.25); border-radius: 4px; background: rgba(125,194,75,.04); margin-top: 2.5rem; }
.apropos-quote::before { content: '\201C'; position:absolute; top:-28px; left:20px; font-family:var(--font-display); font-size:6rem; color:var(--green); line-height:1; opacity:.6; }
.apropos-quote p { font-family:var(--font-display); font-size:1.2rem; font-style:italic; line-height:1.6; color:rgba(255,255,255,.9); }

.stats-grid     { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: rgba(255,255,255,.06); border-radius: 6px; overflow: hidden; }
.stat-box       { background: var(--teal-deep); padding: 2rem 1.5rem; position: relative; overflow: hidden; transition: background .3s; }
.stat-box:hover { background: rgba(125,194,75,.07); }
.stat-box::after { content:''; position:absolute; bottom:0; left:0; right:0; height:2px; background:var(--green); transform:scaleX(0); transition:transform .4s; transform-origin:left; }
.stat-box:hover::after { transform: scaleX(1); }
.stat-num       { font-family: var(--font-display); font-size: 3rem; font-weight: 700; color: var(--green); line-height: 1; margin-bottom: .5rem; }
.stat-label     { font-size: .78rem; letter-spacing: .08em; color: rgba(255,255,255,.6); text-transform: uppercase; }

/* ============================================================
   SECTEURS
   ============================================================ */
#secteurs { background: var(--off-white); color: var(--teal-deep); }

.secteurs-grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; margin-top: 3.5rem; background: var(--gray-light); border-radius: 8px; overflow: hidden; }
.secteur-card   { background: var(--white); position: relative; overflow: hidden; cursor: pointer; transition: all .4s var(--ease); }
.secteur-card:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(5,46,56,.2); }
.secteur-img    { width: 100%; height: 240px; object-fit: cover; transition: transform .7s var(--ease); }
.secteur-card:hover .secteur-img { transform: scale(1.07); }
.secteur-body   { padding: 1.8rem; position: relative; }
.secteur-icon   { width: 48px; height: 48px; background: var(--teal-deep); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 1rem; font-size: 1.3rem; position: absolute; top: -24px; right: 1.5rem; box-shadow: 0 4px 15px rgba(5,46,56,.3); }
.secteur-name   { font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; color: var(--teal-deep); margin-top: .5rem; margin-bottom: .8rem; }
.secteur-desc   { font-size: .88rem; font-weight: 300; line-height: 1.7; color: rgba(5,46,56,.65); }
.secteur-tags   { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 1.2rem; }
.secteur-tag    { font-size: .68rem; font-weight: 500; letter-spacing: .06em; padding: 4px 10px; border-radius: 2px; background: rgba(5,46,56,.07); color: var(--teal-deep); border: 1px solid rgba(5,46,56,.12); }

/* ============================================================
   APPROCHE
   ============================================================ */
#approche { background: var(--teal-mid); position: relative; overflow: hidden; }
#approche::after { content:''; position:absolute; bottom:-100px; left:-100px; width:500px; height:500px; border-radius:50%; background:radial-gradient(circle, rgba(125,194,75,.06) 0%, transparent 70%); pointer-events:none; }

.approche-header { text-align: center; max-width: 650px; margin: 0 auto 5rem; }

.approche-timeline { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; position: relative; }
.approche-timeline::before { content:''; position:absolute; top:52px; left:calc(12.5% + 24px); right:calc(12.5% + 24px); height:1px; background:linear-gradient(to right, rgba(125,194,75,.4), rgba(125,194,75,.8), rgba(125,194,75,.4)); }

.timeline-step  { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 0 1.5rem; position: relative; }
.step-circle    { width: 104px; height: 104px; border-radius: 50%; border: 1px solid rgba(125,194,75,.4); background: rgba(125,194,75,.06); display: flex; align-items: center; justify-content: center; margin-bottom: 1.8rem; position: relative; z-index: 2; transition: all .4s; }
.timeline-step:hover .step-circle { background: rgba(125,194,75,.15); border-color: var(--green); transform: scale(1.08); box-shadow: 0 0 30px rgba(125,194,75,.2); }
.step-num       { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--green); line-height: 1; }
.step-num-label { font-size: .55rem; font-weight: 500; letter-spacing: .15em; text-transform: uppercase; color: rgba(125,194,75,.7); }
.step-title     { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; margin-bottom: .8rem; }
.step-desc      { font-size: .84rem; font-weight: 300; line-height: 1.7; color: rgba(255,255,255,.65); }

/* ============================================================
   ATOUTS
   ============================================================ */
#atouts { background: var(--off-white); color: var(--teal-deep); }

.atouts-layout  { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: center; margin-top: 3rem; }
.atouts-list    { display: flex; flex-direction: column; gap: 2px; }
.atout-item     { display: flex; gap: 1.5rem; align-items: flex-start; padding: 1.5rem; background: var(--white); border-left: 3px solid transparent; transition: all .3s; cursor: default; }
.atout-item:hover { border-left-color: var(--green); background: rgba(125,194,75,.05); transform: translateX(6px); }
.atout-num      { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: var(--green); min-width: 50px; line-height: 1; }
.atout-title    { font-weight: 600; font-size: .95rem; letter-spacing: .03em; margin-bottom: .4rem; color: var(--teal-deep); }
.atout-desc     { font-size: .84rem; font-weight: 300; line-height: 1.6; color: rgba(5,46,56,.65); }

.atouts-visual  { position: relative; }
.atouts-img-main { width: 100%; height: 500px; object-fit: cover; border-radius: 6px; }
.atouts-badge   { position: absolute; bottom: -20px; left: -20px; background: var(--teal-deep); color: var(--white); padding: 1.5rem; border-radius: 6px; box-shadow: 0 10px 40px rgba(5,46,56,.3); max-width: 200px; }
.atouts-badge-title { font-family: var(--font-display); font-size: 2.5rem; font-weight: 700; color: var(--green); line-height: 1; }
.atouts-badge-sub   { font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: rgba(255,255,255,.65); margin-top: 4px; }

.partenaires-strip { margin-top: 4rem; padding: 2rem 2.5rem; background: var(--teal-deep); border-radius: 6px; display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.partenaires-label { font-size: .7rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--green); white-space: nowrap; }
.partenaires-divider { width: 1px; height: 30px; background: rgba(255,255,255,.15); }
.partenaire-name { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; color: var(--white); letter-spacing: .08em; }

/* ============================================================
   PROJETS
   ============================================================ */
#projets { background: var(--teal-deep); overflow: hidden; }

.projets-grid   { display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-template-rows: auto auto; gap: 2px; margin-top: 3.5rem; background: rgba(255,255,255,.05); border-radius: 8px; overflow: hidden; }
.projet-card    { position: relative; overflow: hidden; cursor: pointer; }
.projet-card:first-child { grid-row: 1 / 3; }
.projet-card img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; display: block; transition: transform .7s var(--ease); }
.projet-card:hover img { transform: scale(1.06); }
.projet-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(5,46,56,.92) 0%, rgba(5,46,56,.2) 60%, transparent 100%); padding: 1.5rem; display: flex; flex-direction: column; justify-content: flex-end; transition: background .4s; }
.projet-card:hover .projet-overlay { background: linear-gradient(to top, rgba(5,46,56,.95) 0%, rgba(5,46,56,.5) 60%, rgba(5,46,56,.1) 100%); }
.projet-sector  { font-size: .65rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--green); margin-bottom: 6px; }
.projet-title   { font-family: var(--font-display); font-size: 1.2rem; font-weight: 600; line-height: 1.3; margin-bottom: 6px; }
.projet-card:first-child .projet-title { font-size: 1.6rem; }
.projet-loc     { font-size: .75rem; color: rgba(255,255,255,.6); }

/* ============================================================
   ZONE D'INTERVENTION
   ============================================================ */
#zone { background: var(--teal-mid); position: relative; overflow: hidden; }

.zone-layout    { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: center; }

.africa-map-container { position: relative; }
.africa-map-container img { width: 100%; height: auto; max-height: 520px; object-fit: contain; border-radius: 8px; filter: drop-shadow(0 10px 40px rgba(0,0,0,.3)); }

.zone-countries { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-top: 2.5rem; }
.zone-country   { display: flex; align-items: center; gap: 10px; font-size: .84rem; color: rgba(255,255,255,.8); }
.zone-country::before { content:''; width:8px; height:8px; border-radius:50%; background:var(--green); flex-shrink:0; }

/* ============================================================
   CONTACT
   ============================================================ */
#contact { background: var(--teal-deep); position: relative; overflow: hidden; }
#contact::before { content:''; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(to right, transparent, rgba(125,194,75,.4), transparent); }

.contact-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.contact-info   { display: flex; flex-direction: column; gap: 2.5rem; }
.contact-item   { display: flex; gap: 1.5rem; align-items: flex-start; }
.contact-icon   { width: 48px; height: 48px; border-radius: 50%; background: rgba(125,194,75,.12); border: 1px solid rgba(125,194,75,.3); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; transition: all .3s; }
.contact-item:hover .contact-icon { background: rgba(125,194,75,.25); border-color: var(--green); }
.contact-item-label { font-size: .7rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; color: var(--green); margin-bottom: 6px; }
.contact-item-value { font-size: .95rem; font-weight: 300; color: rgba(255,255,255,.85); line-height: 1.6; }

/* Form */
.contact-form   { display: flex; flex-direction: column; gap: 1.2rem; }
.form-row       { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-field     { display: flex; flex-direction: column; gap: 6px; }
.form-field label  { font-size: .72rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.55); }
.form-field input,
.form-field textarea,
.form-field select { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); border-radius: 3px; padding: 12px 14px; font-family: var(--font-body); font-size: .9rem; color: var(--white); outline: none; transition: border-color .3s, background .3s; width: 100%; }
.form-field input::placeholder,
.form-field textarea::placeholder { color: rgba(255,255,255,.25); }
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus { border-color: var(--green); background: rgba(125,194,75,.05); }
.form-field textarea     { min-height: 130px; resize: vertical; }
.form-field select option { background: var(--teal-deep); color: var(--white); }

.form-submit    { background: var(--green); color: var(--teal-deep); border: none; padding: 15px 36px; font-family: var(--font-body); font-size: .9rem; font-weight: 700; letter-spacing: .08em; border-radius: 3px; cursor: pointer; transition: all .3s; align-self: flex-start; }
.form-submit:hover  { background: var(--green-light); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(125,194,75,.35); }
.form-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.form-feedback  { display: none; padding: 1rem 1.5rem; border-radius: 4px; font-size: .9rem; font-weight: 500; }
.form-feedback.success { background: rgba(125,194,75,.12); border: 1px solid rgba(125,194,75,.4); color: var(--green); }
.form-feedback.error   { background: rgba(220,50,50,.1); border: 1px solid rgba(220,50,50,.4); color: #ff7070; }

/* EmailJS notice */
.emailjs-notice { margin-top: 1rem; padding: 1rem 1.2rem; background: rgba(201,168,76,.08); border: 1px solid rgba(201,168,76,.3); border-radius: 4px; font-size: .78rem; color: rgba(201,168,76,.9); line-height: 1.6; }
.emailjs-notice strong { color: var(--gold); }

/* ============================================================
   FOOTER
   ============================================================ */
footer { background: rgba(0,0,0,.3); border-top: 1px solid rgba(255,255,255,.06); padding: 2.5rem 8%; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1.5rem; }
.footer-left    { display: flex; align-items: center; gap: 1.2rem; }
.footer-left img { height: 38px; width: auto; border-radius: 6px; }
.footer-copy    { font-size: .78rem; color: rgba(255,255,255,.4); }
.footer-links   { display: flex; gap: 2rem; }
.footer-links a { font-size: .75rem; color: rgba(255,255,255,.4); transition: color .3s; }
.footer-links a:hover { color: var(--green); }

/* ============================================================
   KEYFRAMES
   ============================================================ */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(1.4); }
}
@keyframes scrollDown {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .apropos-grid, .atouts-layout, .zone-layout, .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .atouts-badge   { display: none; }
  .approche-timeline { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .approche-timeline::before { display: none; }
  .projets-grid   { grid-template-columns: 1fr 1fr; }
  .projet-card:first-child { grid-row: auto; }
  .secteurs-grid  { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  section         { padding: 70px 5%; }
  .nav-links      { display: none; }
  .hamburger      { display: flex; }
  .hero-stats     { display: none; }
  .approche-timeline { grid-template-columns: 1fr; }
  .projets-grid   { grid-template-columns: 1fr; }
  .form-row       { grid-template-columns: 1fr; }
  .stats-grid     { grid-template-columns: 1fr; }
  .zone-countries { grid-template-columns: 1fr; }
  footer          { flex-direction: column; text-align: center; }
  .footer-links   { flex-wrap: wrap; justify-content: center; }
  .partenaires-strip { flex-direction: column; }
}
@media (max-width: 480px) {
  .hero-title     { font-size: 2.2rem; }
  .hero-actions   { flex-direction: column; }
  .btn-primary, .btn-outline { width: 100%; text-align: center; }
}

/* ============================================================
   AUTRES
   ============================================================ */
.footer-copy a.copy { color: var(--green); font-weight: bold; }
.footer-copy a.copy:hover { color: rgba(255,255,255,.4); }