/* ============================================================
   Lozano & Asoc. - Estudio Contable
   style.css
   ============================================================ */

:root {
  --green:        #1B7B6E;
  --green-dark:   #135C51;
  --green-light:  #E5F4F2;
  --text:         #333;
  --muted:        #666;
  --bg:           #F7F7F7;
  --white:        #FFF;
  --wa:           #25D366;
  --red:          #D94F4F;
  --dark:         #1A1A1A;
  --radius:       10px;
  --shadow:       0 4px 20px rgba(0,0,0,.08);
  --max:          1100px;
  --font:         'Montserrat', sans-serif;
}

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  { font-family: var(--font); color: var(--text); line-height: 1.65; font-size: 16px; }
img   { max-width: 100%; height: auto; display: block; }
a     { text-decoration: none; color: inherit; }
ul    { list-style: none; }

/* === TYPOGRAPHY === */
h1 { font-size: clamp(1.75rem, 5vw, 2.75rem); font-weight: 700; line-height: 1.2; }
h2 { font-size: clamp(1.35rem, 3.5vw, 2rem);  font-weight: 700; line-height: 1.3; }
h3 { font-size: 1.1rem; font-weight: 600; }
h4 { font-size: 1rem;   font-weight: 600; }
p  { color: var(--muted); }

/* === LAYOUT === */
.container    { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.section      { padding: 72px 20px; }
.section--bg  { background: var(--bg); }

/* === SECTION HEADER === */
.sec-hdr          { text-align: center; margin-bottom: 48px; }
.sec-hdr h2       { margin-bottom: 10px; }
.sec-hdr p        { max-width: 580px; margin: 0 auto; font-size: .95rem; }
.sec-hdr::after   { content: ''; display: block; width: 44px; height: 3px; background: var(--green); border-radius: 2px; margin: 14px auto 0; }

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: var(--radius);
  font-family: var(--font); font-weight: 600; font-size: .95rem;
  cursor: pointer; border: 2px solid transparent;
  transition: all .2s; line-height: 1;
}
.btn-green         { background: var(--green);  color: #fff; border-color: var(--green); }
.btn-green:hover   { background: var(--green-dark); border-color: var(--green-dark); }
.btn-wa            { background: var(--wa); color: #fff; border-color: var(--wa); }
.btn-wa:hover      { background: #1da851; border-color: #1da851; }
.btn-white         { background: #fff; color: var(--green); }
.btn-white:hover   { background: #f0f0f0; }
.btn-ghost-w       { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn-ghost-w:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-lg            { padding: 16px 32px; font-size: 1.05rem; }
.btn-full          { width: 100%; justify-content: center; }

/* === FLOATING WHATSAPP === */
@keyframes wa-pulse {
  0%   { box-shadow: 0 0 0 0   rgba(37,211,102,.5); }
  70%  { box-shadow: 0 0 0 12px rgba(37,211,102,0); }
  100% { box-shadow: 0 0 0 0   rgba(37,211,102,0); }
}
.float-wa {
  position: fixed; bottom: 20px; right: 20px; z-index: 900;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--wa); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  animation: wa-pulse 2.5s infinite;
  transition: transform .2s;
}
.float-wa:hover { transform: scale(1.1); }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 500;
  background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,.07);
}
.site-nav {
  max-width: var(--max); margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 76px;
}
.nav-logo img { height: 54px; width: auto; }
.nav-menu     { display: flex; align-items: center; gap: 28px; }
.nav-menu a   { font-size: .88rem; font-weight: 500; color: var(--text); transition: color .2s; }
.nav-menu a:hover, .nav-menu a.active { color: var(--green); }
.nav-menu .nav-wa {
  background: var(--wa); color: #fff !important;
  padding: 7px 16px; border-radius: 6px; font-weight: 600 !important;
}
.nav-menu .nav-wa:hover { background: #1da851; }
.nav-toggle {
  display: none; background: none; border: none;
  cursor: pointer; flex-direction: column; gap: 5px; padding: 4px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
  padding: 80px 20px; text-align: center; color: #fff;
}
.hero h1       { color: #fff; margin-bottom: 16px; }
.hero-sub      { color: rgba(255,255,255,.88); font-size: 1.05rem; max-width: 620px; margin: 0 auto 36px; }
.hero-tag      {
  display: inline-block; background: rgba(255,255,255,.18); color: #fff;
  font-size: .75rem; font-weight: 600; letter-spacing: 1.2px; text-transform: uppercase;
  padding: 5px 14px; border-radius: 50px; margin-bottom: 16px;
}
.hero-btns     { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-sm       { background: linear-gradient(135deg, var(--green-dark), var(--green)); padding: 52px 20px; text-align: center; color: #fff; }
.hero-sm h1    { color: #fff; font-size: clamp(1.5rem, 4vw, 2.2rem); margin-bottom: 8px; }
.hero-sm p     { color: rgba(255,255,255,.85); }

/* ============================================================
   HOME — Services grid
   ============================================================ */
.srv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px,1fr)); gap: 20px; }
.srv-card {
  background: #fff; border-radius: var(--radius); padding: 28px 24px;
  box-shadow: var(--shadow); border-top: 3px solid var(--green);
  transition: transform .2s;
}
.srv-card:hover { transform: translateY(-4px); }
.srv-card .sc-icon { font-size: 2rem; color: var(--green); margin-bottom: 14px; }
.srv-card h3 { margin-bottom: 8px; }
.srv-card .sc-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--green); font-size: .85rem; font-weight: 600;
  margin-top: 14px; transition: gap .2s;
}
.srv-card .sc-link:hover { gap: 10px; }

/* ============================================================
   HOME — Why us
   ============================================================ */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 24px; }
.why-item { text-align: center; padding: 24px 16px; }
.why-icon {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--green-light); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin: 0 auto 14px;
}
.why-item h3 { margin-bottom: 6px; }

/* ============================================================
   CONSORCIOS — Problem cards
   ============================================================ */
.prob-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; }
.prob-card {
  background: #fff; border-radius: 8px; padding: 20px;
  border-left: 3px solid var(--red); box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.prob-card i    { color: var(--red); font-size: 1.25rem; margin-bottom: 10px; display: block; }
.prob-card h4   { margin-bottom: 4px; font-size: .95rem; }
.prob-card p    { font-size: .85rem; }

/* ============================================================
   CONSORCIOS — Pillars
   ============================================================ */
.pillars-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 24px; }
.pillar {
  text-align: center; padding: 32px 20px;
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
}
.pillar-icon {
  width: 68px; height: 68px; border-radius: 50%;
  background: var(--green-light); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem; margin: 0 auto 16px;
}
.pillar h3 { margin-bottom: 8px; }

/* ============================================================
   CONSORCIOS — Feature checklist
   ============================================================ */
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 12px; }
.feat-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 16px; background: #fff; border-radius: 8px;
  border-left: 3px solid var(--green); box-shadow: 0 2px 8px rgba(0,0,0,.05);
}
.feat-item i         { color: var(--green); font-size: 1.1rem; margin-top: 2px; flex-shrink: 0; }
.feat-item strong    { display: block; font-size: .95rem; margin-bottom: 3px; color: var(--text); }
.feat-item p         { font-size: .85rem; }

/* ============================================================
   CONSORCIOS — Transparency block
   ============================================================ */
.trans-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 20px; }
.trans-item {
  padding: 24px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
}
.trans-item .ti-num { font-size: 2rem; font-weight: 700; color: var(--green); line-height: 1; margin-bottom: 10px; }
.trans-item h4      { margin-bottom: 6px; }
.trans-item p       { font-size: .88rem; }

/* ============================================================
   SERVICIOS — Service detail cards
   ============================================================ */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr)); gap: 24px; }
.svc-card {
  background: #fff; border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow); transition: transform .2s;
}
.svc-card:hover { transform: translateY(-3px); }
.svc-card.featured { border: 2px solid var(--green); }
.svc-badge {
  display: inline-block; background: var(--green); color: #fff;
  font-size: .7rem; font-weight: 700; padding: 3px 10px;
  border-radius: 50px; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px;
}
.svc-icon {
  width: 52px; height: 52px; border-radius: 10px;
  background: var(--green-light); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 16px;
}
.svc-card h3 { margin-bottom: 8px; }
.svc-list    { margin-top: 12px; }
.svc-list li {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: .88rem; color: var(--muted); margin-bottom: 6px;
}
.svc-list li i { color: var(--green); font-size: .85rem; margin-top: 3px; flex-shrink: 0; }

/* ============================================================
   SERVICIOS — Process steps
   ============================================================ */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 16px; }
.step       { text-align: center; padding: 24px 16px; }
.step-num   {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--green); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; font-weight: 700; margin: 0 auto 14px;
}
.step h3 { margin-bottom: 6px; }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band    { background: var(--green); padding: 72px 20px; text-align: center; }
.cta-band h2 { color: #fff; margin-bottom: 10px; }
.cta-band p  { color: rgba(255,255,255,.85); font-size: 1.05rem; max-width: 520px; margin: 0 auto 32px; }
.cta-btns    { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-card   { background: #fff; border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.contact-card h2 { margin-bottom: 24px; }
.ci             { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 20px; }
.ci-icon        {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--green-light); color: var(--green);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.ci-text strong  { display: block; font-size: .82rem; color: var(--text); margin-bottom: 2px; font-weight: 600; }
.ci-text a       { color: var(--green); font-weight: 500; font-size: .95rem; }
.ci-text span    { color: var(--muted); font-size: .9rem; }
.wa-btn-big {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  background: var(--wa); color: #fff; border-radius: var(--radius);
  padding: 16px; font-size: 1.05rem; font-weight: 700; margin-bottom: 24px;
  transition: background .2s; border: none; cursor: pointer; width: 100%;
}
.wa-btn-big:hover { background: #1da851; }

/* FORM */
.form-group                { margin-bottom: 14px; }
.form-group label          { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 5px; color: var(--text); }
.form-group input,
.form-group textarea,
.form-group select         { width: 100%; padding: 11px 14px; border: 1.5px solid #ddd; border-radius: 7px; font-family: var(--font); font-size: .9rem; transition: border-color .2s; background: #fff; color: var(--text); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus   { outline: none; border-color: var(--green); }
.form-group textarea       { min-height: 110px; resize: vertical; }
.form-success              { display: none; padding: 14px; border-radius: 8px; background: var(--green-light); color: var(--green); font-weight: 600; text-align: center; margin-top: 12px; font-size: .9rem; }

/* ============================================================
   FOOTER
   ============================================================ */
footer { background: var(--dark); color: #aaa; padding: 52px 20px 24px; }
.footer-inner  { max-width: var(--max); margin: 0 auto; }
.footer-grid   { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid #2a2a2a; }
.footer-brand-name {
  font-size: 1.15rem; font-weight: 700; color: #fff;
  letter-spacing: 0.5px; margin-bottom: 12px;
}
.footer-brand p   { color: #777; font-size: .88rem; line-height: 1.65; }
.footer-col h4    { color: #fff; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .8px; margin-bottom: 14px; }
.footer-col li    { margin-bottom: 8px; }
.footer-col a     { color: #777; font-size: .88rem; transition: color .2s; }
.footer-col a:hover { color: var(--green); }
.footer-col span  { color: #777; font-size: .88rem; }
.footer-bottom  { display: flex; justify-content: space-between; align-items: center; margin-top: 20px; font-size: .78rem; color: #555; flex-wrap: wrap; gap: 8px; }
.footer-social  { display: flex; gap: 10px; }
.footer-social a {
  width: 34px; height: 34px; border-radius: 50%; background: #2a2a2a; color: #777;
  display: flex; align-items: center; justify-content: center; font-size: .9rem; transition: all .2s;
}
.footer-social a:hover { background: var(--green); color: #fff; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav-menu {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: flex-start;
    padding: 16px 20px; gap: 14px;
    box-shadow: 0 8px 20px rgba(0,0,0,.1);
  }
  .nav-menu.open { display: flex; }
  .nav-toggle    { display: flex; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .section   { padding: 52px 16px; }
  .hero      { padding: 60px 16px; }
  .cta-band  { padding: 52px 16px; }
}