/* ============================================================
   ΣΟΥΛΤΑΣ ΚΥΡΙΑΚΟΣ – Λογιστικό · Φοροτεχνικό · Εργατικό
   style.css – Main Stylesheet
   Designed & Powered by Alpha | https://axd.gr
   ============================================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  --navy:       #1d3557;
  --navy-dark:  #0f2038;
  --navy-mid:   #2a4a70;
  --blue:       #2563eb;
  --blue-light: #3b82f6;
  --sky:        #dbeafe;
  --ice:        #eff6ff;

  --white:      #ffffff;
  --off-white:  #f8fafc;
  --text:       #1e293b;
  --text-mid:   #475569;
  --text-muted: #94a3b8;
  --border:     #e2e8f0;
  --border-mid: #cbd5e1;

  --shadow-xs:  0 1px 2px rgba(0,0,0,.05);
  --shadow-sm:  0 2px 8px rgba(29,53,87,.08);
  --shadow:     0 4px 20px rgba(29,53,87,.13);
  --shadow-lg:  0 8px 36px rgba(29,53,87,.18);

  --section-py: 84px;
  --container:  1140px;
  --gap:        24px;

  --r-sm: 6px;
  --r:    10px;
  --r-lg: 16px;
  --r-xl: 24px;

  --t: .22s ease;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img  { max-width: 100%; height: auto; display: block; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
button { cursor: pointer; font: inherit; border: none; background: none; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--navy); }
h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }
p  { color: var(--text-mid); }

/* ---------- Layout Utilities ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section-pad    { padding: var(--section-py) 0; }
.section-pad-sm { padding: 56px 0; }
.text-center    { text-align: center; }
.bg-ice   { background: var(--ice); }
.bg-navy  { background: var(--navy); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--r);
  font-weight: 600;
  font-size: .95rem;
  transition: var(--t);
  white-space: nowrap;
}
.btn-primary  { background: var(--blue); color: var(--white); }
.btn-primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,.35);
}
.btn-outline {
  border: 2px solid rgba(255,255,255,.65);
  color: var(--white);
}
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-ghost {
  border: 2px solid var(--border-mid);
  color: var(--navy);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }

/* ---------- Section Headers ---------- */
.section-header         { margin-bottom: 52px; }
.section-header.center  { text-align: center; }
.section-header.center p { margin: 0 auto; }
.eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 10px;
}
.section-header h2    { margin-bottom: 14px; }
.section-header p     { font-size: 1.05rem; max-width: 580px; line-height: 1.75; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--r-sm);
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.01em;
  flex-shrink: 0;
}
.logo-text .name {
  display: block;
  font-size: .97rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}
.logo-text .sub {
  display: block;
  font-size: .68rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: .03em;
}

/* Navigation */
.header-right { display: flex; align-items: center; gap: 0; }
.main-nav { display: flex; align-items: center; gap: 2px; }
.main-nav a {
  padding: 7px 14px;
  border-radius: var(--r-sm);
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-mid);
  transition: var(--t);
}
.main-nav a:hover { color: var(--navy); background: var(--ice); }

/* Language switcher */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 3px;
  padding-left: 14px;
  margin-left: 10px;
  border-left: 1px solid var(--border);
}
.lang-switch a {
  padding: 5px 9px;
  border-radius: 5px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--text-muted);
  transition: var(--t);
}
.lang-switch a:hover   { color: var(--navy); background: var(--ice); }
.lang-switch a.active  { color: var(--navy); background: var(--sky); }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--r-sm);
  transition: var(--t);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: var(--t);
}
.nav-toggle:hover { background: var(--ice); }
.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); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  z-index: 199;
  padding: 24px 24px 40px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}
.mobile-menu.open { display: block; }
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 28px;
}
.mobile-nav a {
  padding: 13px 16px;
  border-radius: var(--r-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  transition: var(--t);
}
.mobile-nav a:hover { background: var(--ice); color: var(--navy); }
.mobile-lang-wrap { padding-top: 20px; border-top: 1px solid var(--border); }
.mobile-lang-wrap p {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}
.mobile-lang { display: flex; gap: 8px; flex-wrap: wrap; }
.mobile-lang a {
  padding: 7px 16px;
  border: 1px solid var(--border-mid);
  border-radius: var(--r-sm);
  font-size: .85rem;
  font-weight: 700;
  color: var(--text-mid);
  transition: var(--t);
}
.mobile-lang a.active { background: var(--navy); color: var(--white); border-color: var(--navy); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background:
    linear-gradient(140deg, rgba(15,32,56,.87) 0%, rgba(29,53,87,.80) 50%, rgba(42,74,112,.82) 100%),
    url('../img/banner.webp') center / cover no-repeat;
  padding: 96px 0 88px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 60%, rgba(37,99,235,.18) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 10%, rgba(59,130,246,.12) 0%, transparent 45%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 780px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: .75rem;
  font-weight: 700;
  color: rgba(255,255,255,.85);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 26px;
}
.hero h1 { color: var(--white); margin-bottom: 22px; }
.hero-lead {
  font-size: 1.12rem;
  color: rgba(255,255,255,.78);
  max-width: 620px;
  margin-bottom: 38px;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ============================================================
   ABOUT
   ============================================================ */
.about-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.about-content h2 { margin-bottom: 16px; }
.about-content p  { margin-bottom: 16px; font-size: .97rem; }
.about-features   { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.about-feat {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.af-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--r-sm);
  background: var(--sky);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.af-icon svg { width: 18px; height: 18px; }
.af-text strong { display: block; font-size: .9rem; color: var(--navy); margin-bottom: 2px; }
.af-text span   { font-size: .85rem; color: var(--text-mid); }

/* Contact quick-card (right side of About) */
.about-card {
  background: var(--ice);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 36px 32px;
}
.about-card-title {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.cq-row {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.cq-row:last-child { border-bottom: none; padding-bottom: 0; }
.cq-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: var(--sky);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cq-icon svg { width: 16px; height: 16px; }
.cq-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 2px;
}
.cq-val { font-size: .88rem; color: var(--text); line-height: 1.5; }
.cq-val a:hover { color: var(--blue); }

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.svc-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  transition: var(--t);
  overflow: hidden;
}
.svc-card-img {
  display: block;
  max-width: 100%;
  margin: 0 auto 22px;
  border-radius: var(--r-sm);
}
.svc-card:hover {
  border-color: var(--blue-light);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.svc-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--r);
  background: var(--sky);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.svc-icon svg { width: 26px; height: 26px; }
.svc-card h3  { color: var(--navy); margin-bottom: 6px; font-size: 1.08rem; }
.svc-tagline  {
  font-size: .83rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}
.svc-list { display: flex; flex-direction: column; gap: 9px; }
.svc-list li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: .855rem;
  color: var(--text-mid);
  line-height: 1.5;
}
.svc-list li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue);
  margin-top: 7px;
  flex-shrink: 0;
}

/* ============================================================
   WHY US
   ============================================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
.why-card {
  text-align: center;
  padding: 36px 24px 28px;
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--border);
  transition: var(--t);
}
.why-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.why-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--r-lg);
  background: var(--sky);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.why-icon svg { width: 28px; height: 28px; }
.why-card h3  { font-size: .98rem; margin-bottom: 10px; }
.why-card p   { font-size: .85rem; line-height: 1.65; }

/* ============================================================
   SERVICE AREAS
   ============================================================ */
.areas-section { background: var(--navy); }
.areas-inner {
  display: grid;
  grid-template-columns: 1fr 1.8fr;
  gap: 64px;
  align-items: start;
}
.areas-inner .eyebrow    { color: rgba(255,255,255,.55); }
.areas-inner h2          { color: var(--white); }
.areas-inner .section-header p { color: rgba(255,255,255,.7); }
.areas-text p            { color: rgba(255,255,255,.78); line-height: 1.8; margin-bottom: 16px; font-size: .95rem; }
.areas-text p:last-of-type { margin-bottom: 24px; }
.areas-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.area-tag {
  padding: 6px 15px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50px;
  font-size: .8rem;
  color: rgba(255,255,255,.88);
  font-weight: 500;
  transition: var(--t);
}
.area-tag.primary {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
  font-weight: 600;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--r);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--t);
}
.faq-item.open { border-color: var(--blue-light); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  text-align: left;
  background: var(--white);
  font-size: .93rem;
  font-weight: 600;
  color: var(--navy);
  transition: background var(--t);
  gap: 16px;
}
.faq-q:hover { background: var(--ice); }
.faq-toggle {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--sky);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--t);
  font-size: 1.2rem;
  line-height: 1;
  font-weight: 700;
}
.faq-item.open .faq-toggle { background: var(--blue); color: var(--white); transform: rotate(45deg); }
.faq-body { max-height: 0; overflow: hidden; transition: max-height .38s ease; }
.faq-item.open .faq-body { max-height: 400px; }
.faq-body p { padding: 4px 22px 20px; font-size: .88rem; line-height: 1.75; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info h3      { margin-bottom: 8px; }
.contact-info .intro  { margin-bottom: 28px; font-size: .95rem; }
.cinfo-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.cinfo-item:last-of-type { border-bottom: none; }
.cinfo-ic {
  width: 42px;
  height: 42px;
  border-radius: var(--r-sm);
  background: var(--sky);
  color: var(--blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cinfo-ic svg { width: 18px; height: 18px; }
.ci-label { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 3px; }
.ci-val   { font-size: .9rem; color: var(--text); }
.ci-val a:hover { color: var(--blue); }

.contact-form-wrap {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 38px 36px;
  box-shadow: var(--shadow-sm);
}
.contact-form-wrap h3  { margin-bottom: 6px; }
.contact-form-wrap .intro { margin-bottom: 26px; }
.form-group           { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  letter-spacing: .03em;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border-mid);
  border-radius: var(--r-sm);
  font: inherit;
  font-size: .9rem;
  color: var(--text);
  background: var(--white);
  transition: var(--t);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.form-group textarea { resize: vertical; min-height: 115px; }
.form-row  { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.btn-submit { width: 100%; padding: 13px; font-size: .95rem; border-radius: var(--r); margin-top: 4px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,.68);
  padding: 52px 0 28px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.09);
  margin-bottom: 26px;
}
.footer-brand .logo-mark { margin-bottom: 16px; }
.footer-brand p { font-size: .85rem; line-height: 1.75; max-width: 290px; }
.footer-col h5 {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 16px;
}
.footer-col li   { margin-bottom: 9px; }
.footer-col a    { font-size: .86rem; transition: var(--t); }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .8rem;
}
.powered-by a { color: rgba(255,255,255,.55); font-weight: 600; transition: var(--t); }
.powered-by a:hover { color: var(--white); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid      { grid-template-columns: repeat(2, 1fr); }
  .areas-inner   { grid-template-columns: 1fr; gap: 36px; }
  .footer-top    { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-py: 60px; }

  .main-nav   { display: none; }
  .lang-switch { display: none; }
  .nav-toggle  { display: flex; }

  .hero        { padding: 72px 0 64px; }
  .about-wrap  { grid-template-columns: 1fr; }
  .about-card  { order: -1; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid      { grid-template-columns: 1fr 1fr; }
  .contact-grid  { grid-template-columns: 1fr; }
  .footer-top    { grid-template-columns: 1fr; gap: 32px; }
  .form-row      { grid-template-columns: 1fr; }
  .hero-actions  { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .why-grid  { grid-template-columns: 1fr; }
  .logo-text { display: none; }
}