/* ===================================================
   Associação Peixe Vivo — peixevivo.org
   Tema: natureza + águas + soltura de alevinos
   =================================================== */

:root{
  --blue: #0299E2;
  --blue-dark: #027bb8;
  --teal: #47A5AF;
  --ink: #2b2b2b;
  --gray: #4A4A4A;
  --leaf: #2E7D32;
  --leaf-light: #66BB6A;
  --sand: #F5F2E9;
  --mist: #EAF7F6;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(2, 60, 80, .12);
  --radius: 18px;
  --maxw: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: 'Poppins','Segoe UI',sans-serif;
  color: var(--ink);
  background: var(--white);
  overflow-x: hidden;
}
h1,h2,h3,h4{ font-family:'Poppins',sans-serif; margin:0 0 .5rem; line-height:1.15; }
p{ line-height:1.7; margin:0 0 1rem; color:#4d5559; }
a{ text-decoration:none; color:inherit; }
img{ max-width:100%; display:block; }
.container{ max-width: var(--maxw); margin:0 auto; padding:0 24px; }
.section{ padding: 90px 0; position:relative; }
.section-tag{
  display:inline-block; text-transform:uppercase; letter-spacing:.14em;
  font-size:.75rem; font-weight:700; color: var(--leaf);
  background: rgba(46,125,50,.08); padding:6px 14px; border-radius:30px; margin-bottom:14px;
}
.section-title{ font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight:700; color:var(--ink); }
.section-lead{ max-width:640px; color:#5b6a6e; font-size:1.05rem; }
.btn{
  display:inline-flex; align-items:center; gap:10px; font-weight:600;
  padding:14px 28px; border-radius:40px; border:none; cursor:pointer;
  font-size:.95rem; transition: transform .25s ease, box-shadow .25s ease;
}
.btn-primary{ background: linear-gradient(135deg, var(--blue), var(--teal)); color:#fff; box-shadow:0 8px 20px rgba(2,153,226,.35); }
.btn-primary:hover{ transform: translateY(-3px); box-shadow:0 14px 28px rgba(2,153,226,.45); }
.btn-outline{ background:transparent; border:2px solid rgba(255,255,255,.7); color:#fff; }
.btn-outline:hover{ background: rgba(255,255,255,.15); transform: translateY(-3px); }
.btn-leaf{ background: var(--leaf); color:#fff; box-shadow:0 8px 20px rgba(46,125,50,.3); }
.btn-leaf:hover{ transform: translateY(-3px); box-shadow:0 14px 28px rgba(46,125,50,.4); }

/* ---------- preview ribbon ---------- */
.preview-bar{
  background: var(--ink); color:#fff; text-align:center;
  font-size:.82rem; padding:9px 16px; letter-spacing:.02em;
}
.preview-bar strong{ color:#8fe0ff; }

/* ---------- header ---------- */
header{
  position: sticky; top:0; z-index:50;
  background: rgba(255,255,255,.9); backdrop-filter: blur(8px);
  border-bottom:1px solid rgba(0,0,0,.06);
}
.nav{ display:flex; align-items:center; justify-content:space-between; padding:14px 24px; max-width:var(--maxw); margin:0 auto; }
.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ height:52px; width:auto; }
.brand-text{ line-height:1.1; }
.brand-text b{ display:block; font-size:1.05rem; color:var(--gray); }
.brand-text span{ font-size:.72rem; letter-spacing:.12em; color:var(--teal); text-transform:uppercase; }
.nav-links{ display:flex; gap:30px; list-style:none; margin:0; padding:0; }
.nav-links a{ font-weight:600; font-size:.92rem; color:var(--gray); position:relative; padding:6px 0; }
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:0; width:0; height:2px;
  background: var(--blue); transition: width .25s ease;
}
.nav-links a:hover::after{ width:100%; }
.nav-cta{ display:flex; align-items:center; gap:16px; }
.menu-toggle{ display:none; background:none; border:none; font-size:1.6rem; cursor:pointer; color:var(--gray); }

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding: 90px 0 160px;
  background: radial-gradient(ellipse at top left, #e7f7fb 0%, var(--mist) 45%, #dff1ef 100%);
  overflow:hidden;
}
.hero-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap:50px; align-items:center; }
.hero h1{ font-size: clamp(2.1rem, 4.2vw, 3.4rem); color:var(--ink); }
.hero h1 em{ font-style:normal; color:var(--blue); }
.hero .section-lead{ font-size:1.08rem; margin-bottom:28px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }
.hero-actions .btn-outline{ border-color: rgba(2,153,226,.35); color:var(--blue-dark); }
.hero-actions .btn-outline:hover{ background: rgba(2,153,226,.08); }

.hero-art{ position:relative; height:420px; }
.hero-art svg{ position:absolute; inset:0; width:100%; height:100%; }
.fish-float{ animation: float 6s ease-in-out infinite; }
.fish-float.delay1{ animation-delay: -2s; }
.fish-float.delay2{ animation-delay: -4s; }
@keyframes float{
  0%,100%{ transform: translateY(0px) rotate(0deg); }
  50%{ transform: translateY(-16px) rotate(-3deg); }
}

.wave-divider{ position:absolute; left:0; right:0; bottom:-2px; line-height:0; }
.wave-divider svg{ width:100%; height:110px; display:block; }

/* ---------- stats ---------- */
.stats{ background: var(--white); margin-top:-1px; }
.stats-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:24px; padding: 40px 0 10px; }
.stat-card{
  text-align:center; padding:28px 16px; border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, #f6fbfb); box-shadow: var(--shadow);
  border:1px solid rgba(2,153,226,.08);
}
.stat-card .num{ font-size:2.1rem; font-weight:800; color:var(--blue); }
.stat-card .lbl{ font-size:.85rem; color:#5b6a6e; margin-top:4px; }

/* ---------- about ---------- */
.about{ background: var(--white); }
.about-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:60px; align-items:center; }
.about-art{ position:relative; }
.about-art .card-photo{
  border-radius: var(--radius); background: linear-gradient(160deg, var(--mist), #d7efe0);
  aspect-ratio: 4/3.2; box-shadow: var(--shadow); position:relative; overflow:hidden;
}
.timeline{ margin-top:24px; border-left:3px solid rgba(2,153,226,.25); padding-left:22px; }
.timeline-item{ margin-bottom:18px; position:relative; }
.timeline-item::before{
  content:''; position:absolute; left:-28px; top:4px; width:12px; height:12px;
  border-radius:50%; background: var(--blue); box-shadow:0 0 0 4px rgba(2,153,226,.15);
}
.timeline-item b{ color:var(--ink); display:block; font-size:.95rem; }
.timeline-item span{ font-size:.88rem; color:#5b6a6e; }

/* ---------- release section (soltura de alevinos) ---------- */
.release{
  background: linear-gradient(135deg, #05374a, #04607e 55%, #0299E2);
  color:#fff; position:relative; overflow:hidden;
}
.release .section-tag{ background: rgba(255,255,255,.15); color:#bdeeff; }
.release .section-title{ color:#fff; }
.release .section-lead{ color:#dff3fa; }
.release-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:50px; align-items:center; }
.release-art{ position:relative; height:340px; }
.release-art svg{ width:100%; height:100%; }
.release-list{ list-style:none; margin:24px 0; padding:0; display:grid; gap:14px; }
.release-list li{ display:flex; gap:12px; align-items:flex-start; font-size:.98rem; color:#e7f7fb; }
.release-list li .dot{
  min-width:26px; height:26px; border-radius:50%; background: rgba(255,255,255,.15);
  display:flex; align-items:center; justify-content:center; font-size:.8rem; margin-top:2px;
}

/* ---------- projects ---------- */
.projects{ background: var(--sand); }
.projects-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:26px; margin-top:36px; }
.project-card{
  background:#fff; border-radius: var(--radius); overflow:hidden; box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
}
.project-card:hover{ transform: translateY(-6px); box-shadow:0 20px 40px rgba(2,60,80,.18); }
.project-cover{ height:150px; display:flex; align-items:center; justify-content:center; }
.project-cover.blue{ background: linear-gradient(135deg,#0299E2,#47A5AF); }
.project-cover.green{ background: linear-gradient(135deg,#2E7D32,#8BC34A); }
.project-cover.dark{ background: linear-gradient(135deg,#274046,#4A4A4A); }
.project-body{ padding:22px; }
.project-body h3{ font-size:1.1rem; }
.project-body p{ font-size:.92rem; }
.tag-pill{
  display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.05em;
  text-transform:uppercase; color:var(--leaf); background: rgba(46,125,50,.08);
  padding:4px 10px; border-radius:20px; margin-bottom:10px;
}

/* ---------- help / volunteer ---------- */
.help{ background:#fff; }
.help-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:24px; margin-top:36px; }
.help-card{
  border:1.5px solid rgba(2,153,226,.15); border-radius: var(--radius); padding:28px 24px;
  transition: border-color .25s ease, transform .25s ease;
}
.help-card:hover{ border-color: var(--blue); transform: translateY(-4px); }
.help-icon{
  width:52px; height:52px; border-radius:14px; background: rgba(2,153,226,.1);
  display:flex; align-items:center; justify-content:center; margin-bottom:16px;
}

/* ---------- contact ---------- */
.contact{ background: var(--mist); }
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:50px; }
.contact-list{ list-style:none; padding:0; margin:24px 0; display:grid; gap:18px; }
.contact-list li{ display:flex; gap:14px; align-items:flex-start; }
.contact-list .ico{
  min-width:42px; height:42px; border-radius:12px; background:#fff; box-shadow: var(--shadow);
  display:flex; align-items:center; justify-content:center;
}
.contact-list b{ display:block; font-size:.95rem; }
.contact-list span{ font-size:.9rem; color:#5b6a6e; }
.contact-form{ background:#fff; border-radius: var(--radius); padding:30px; box-shadow: var(--shadow); }
.contact-form input, .contact-form textarea{
  width:100%; padding:13px 16px; border-radius:10px; border:1.5px solid #e1ecec;
  margin-bottom:14px; font-family:inherit; font-size:.92rem;
}
.contact-form label{ font-size:.82rem; font-weight:600; color:var(--gray); display:block; margin-bottom:6px; }
.form-note{ font-size:.78rem; color:#8a9a9d; margin-top:-6px; }

/* ---------- footer ---------- */
footer{ background: var(--ink); color:#cfd8d8; padding:50px 0 24px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap:40px; padding-bottom:30px; border-bottom:1px solid rgba(255,255,255,.08); }
.footer-brand{ display:flex; gap:12px; align-items:center; margin-bottom:14px; }
.footer-brand img{ height:44px; filter: brightness(0) invert(1); opacity:.9; }
footer h4{ color:#fff; font-size:.95rem; margin-bottom:14px; }
footer ul{ list-style:none; padding:0; margin:0; display:grid; gap:10px; }
footer a{ font-size:.88rem; color:#b7c4c4; }
footer a:hover{ color:#fff; }
.footer-bottom{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; padding-top:20px; font-size:.8rem; color:#8a9a9d; }

/* ---------- reveal on scroll ---------- */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .hero-grid, .about-grid, .release-grid, .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .stats-grid{ grid-template-columns: repeat(2,1fr); }
  .projects-grid, .help-grid{ grid-template-columns:1fr; }
  .nav-links{ position:fixed; top:78px; left:0; right:0; background:#fff; flex-direction:column;
    padding:20px 24px; gap:16px; box-shadow:0 12px 20px rgba(0,0,0,.08); transform: translateY(-130%); transition: transform .3s ease; }
  .nav-links.open{ transform: translateY(0); }
  .menu-toggle{ display:block; }
  .hero{ padding-bottom:120px; }
  .hero-art{ height:280px; }
}