/* ============================================
   OTTO WEB SOLUTIONS — STYLESHEET
   ============================================ */

/* 1. CSS VARIABLES */
:root {
  --primary:       #1d4ed8;
  --primary-dark:  #1e40af;
  --accent:        #f97316;
  --accent-dark:   #ea580c;
  --dark:          #0f172a;
  --text:          #1e293b;
  --text-muted:    #64748b;
  --border:        #e2e8f0;
  --bg:            #ffffff;
  --bg-alt:        #f8fafc;
  --shadow:        0 4px 6px -1px rgb(0 0 0/0.08), 0 2px 4px -2px rgb(0 0 0/0.05);
  --shadow-lg:     0 10px 15px -3px rgb(0 0 0/0.1),  0 4px 6px -4px rgb(0 0 0/0.07);
  --shadow-xl:     0 20px 25px -5px rgb(0 0 0/0.12), 0 8px 10px -6px rgb(0 0 0/0.07);
  --radius:        12px;
  --radius-lg:     20px;
  --nav-h:         72px;
  --ease:          0.3s cubic-bezier(0.4,0,0.2,1);
}

/* 2. RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; color: var(--text); background: var(--bg); line-height: 1.65; -webkit-font-smoothing: antialiased; }
img   { max-width: 100%; height: auto; display: block; }
a     { text-decoration: none; color: inherit; }
ul    { list-style: none; }
p     { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* 3. TYPOGRAPHY */
h1,h2,h3,h4 { font-family: 'Playfair Display', Georgia, serif; line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.4rem); }
.lead { font-size: 1.15rem; line-height: 1.75; color: var(--text-muted); }

/* 4. LAYOUT */
.container   { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section     { padding: 5.5rem 0; }
.section-alt { background: var(--bg-alt); }
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.section-header h2 { margin-bottom: 0.875rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.75rem; }

/* 5. BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--ease);
  border: 2px solid transparent;
  font-family: 'Inter', sans-serif;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249,115,22,0.38); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.55); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; transform: translateY(-2px); }

/* 6. NAVIGATION */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: all var(--ease);
}
.nav.nav-home:not(.scrolled) { background: transparent; }
.nav.nav-scrolled,
.nav.scrolled { background: rgba(255,255,255,0.97); backdrop-filter: blur(14px); box-shadow: 0 1px 4px rgba(0,0,0,0.08); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo { display: flex; align-items: center; gap: 0.7rem; font-weight: 700; font-size: 1.1rem; font-family: 'Inter', sans-serif; }
.logo-mark { width: 40px; height: 40px; border-radius: 10px; background: var(--accent); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.05rem; font-weight: 800; font-family: 'Playfair Display', serif; flex-shrink: 0; }
.logo-text { color: var(--dark); line-height: 1.1; }
.logo-text span { display: block; font-size: 0.62rem; font-weight: 400; color: var(--text-muted); letter-spacing: 0.06em; text-transform: uppercase; }

.nav-home:not(.scrolled) .logo-text       { color: #fff; }
.nav-home:not(.scrolled) .logo-text span  { color: rgba(255,255,255,0.6); }
.nav-home:not(.scrolled) .nav-toggle span { background: #fff; }

.nav-links { display: flex; align-items: center; gap: 2.5rem; }
.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  transition: color var(--ease);
  position: relative;
}
.nav-home:not(.scrolled) .nav-links a:not(.nav-cta) { color: rgba(255,255,255,0.88); }
.nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:var(--accent); transition:width var(--ease); }
.nav-links a:hover::after, .nav-links a.active::after { width:100%; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-home:not(.scrolled) .nav-links a:hover,
.nav-home:not(.scrolled) .nav-links a.active { color: #fff; }

.nav-cta { background:var(--accent)!important; color:#fff!important; padding:0.55rem 1.4rem!important; border-radius:50px!important; font-weight:600!important; }
.nav-cta::after { display:none!important; }
.nav-cta:hover { background:var(--accent-dark)!important; }

.nav-toggle { display:none; flex-direction:column; gap:5px; cursor:pointer; padding:4px; background:none; border:none; }
.nav-toggle span { display:block; width:24px; height:2px; background:var(--text); border-radius:2px; transition:all var(--ease); }

/* 7. HOME HERO */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0a1628 0%, #0f2659 55%, #1d4ed8 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: var(--nav-h) 0 4rem;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.025'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero::after {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 68%);
  right: -180px; top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}
.hero-content { position:relative; z-index:1; max-width: 760px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(249,115,22,0.15);
  border: 1px solid rgba(249,115,22,0.3);
  color: #fdba74;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}
.hero h1 { color:#fff; margin-bottom:1.4rem; }
.hero h1 em { font-style:normal; color:#fdba74; }
.hero .lead { color:rgba(255,255,255,0.72); font-size:1.15rem; margin-bottom:2.5rem; max-width:580px; }
.hero-buttons { display:flex; gap:1rem; flex-wrap:wrap; }
.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat-num   { font-size:2rem; font-weight:800; color:#fff; font-family:'Playfair Display',serif; line-height:1; }
.hero-stat-label { font-size:0.75rem; color:rgba(255,255,255,0.55); text-transform:uppercase; letter-spacing:0.06em; margin-top:0.25rem; }

/* 8. PAGE HERO (inner pages) */
.page-hero { padding: calc(var(--nav-h) + 4rem) 0 4.5rem; background: linear-gradient(135deg, #0a1628 0%, #0f2659 100%); text-align:center; color:#fff; }
.page-hero h1   { color:#fff; margin-bottom:1rem; }
.page-hero p    { color:rgba(255,255,255,0.72); font-size:1.1rem; max-width:560px; margin:0 auto; }
.page-hero .section-label { color:#fdba74; }

/* 9. SERVICE CARDS */
.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  border: 1px solid var(--border);
  transition: all var(--ease);
  position: relative;
  overflow: hidden;
}
.service-card::before { content:''; position:absolute; top:0; left:0; right:0; height:3px; background:var(--accent); transform:scaleX(0); transform-origin:left; transition:transform var(--ease); }
.service-card:hover { box-shadow:var(--shadow-xl); transform:translateY(-4px); border-color:transparent; }
.service-card:hover::before { transform:scaleX(1); }
.service-icon { width:54px; height:54px; background:linear-gradient(135deg,rgba(29,78,216,0.1),rgba(29,78,216,0.04)); border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:1.5rem; margin-bottom:1.4rem; }
.service-card h3 { margin-bottom:0.65rem; }
.service-card p  { color:var(--text-muted); font-size:0.9rem; line-height:1.7; }

/* 10. PORTFOLIO GRID */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 2rem;
}
.portfolio-card { background:#fff; border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow); transition:all var(--ease); display:flex; flex-direction:column; }
.portfolio-card:hover { transform:translateY(-8px); box-shadow:var(--shadow-xl); }
.portfolio-card-visual { height:195px; display:flex; align-items:center; justify-content:center; flex-direction:column; gap:0.6rem; position:relative; }

/* Project-specific gradients */
.portfolio-card.jazz     .portfolio-card-visual { background:linear-gradient(135deg,#0d0221 0%,#1a0a3c 45%,#2d1b69 75%,#14405a 100%); }
.portfolio-card.sumfest  .portfolio-card-visual { background:linear-gradient(135deg,#1a0800 0%,#7a3800 40%,#b89200 72%,#005c1e 100%); }
.portfolio-card.prescript.portfolio-card-visual { background:linear-gradient(135deg,#0c4a6e 0%,#0284c7 55%,#38bdf8 100%); }
.portfolio-card.divvyden .portfolio-card-visual { background:linear-gradient(135deg,#3b0764 0%,#7c3aed 52%,#db2777 100%); }

.portfolio-card-icon     { font-size:2.8rem; filter:drop-shadow(0 2px 8px rgba(0,0,0,0.3)); }
.portfolio-card-category { font-size:0.68rem; font-weight:700; letter-spacing:0.12em; text-transform:uppercase; color:rgba(255,255,255,0.75); background:rgba(255,255,255,0.12); padding:0.22rem 0.75rem; border-radius:50px; border:1px solid rgba(255,255,255,0.22); }

.portfolio-card-body { padding:1.75rem; flex:1; display:flex; flex-direction:column; }
.portfolio-card-body h3 { font-size:1.15rem; margin-bottom:0.5rem; color:var(--dark); }
.portfolio-card-body p  { color:var(--text-muted); font-size:0.875rem; line-height:1.65; flex:1; margin-bottom:1.2rem; }
.portfolio-tags         { display:flex; flex-wrap:wrap; gap:0.4rem; }
.tag { display:inline-block; padding:0.2rem 0.65rem; background:var(--bg-alt); border:1px solid var(--border); border-radius:50px; font-size:0.72rem; font-weight:600; color:var(--text-muted); }

/* 11. CTA BANNER */
.cta-banner { background:linear-gradient(135deg,#0a1628 0%,#0f2659 60%,#1d4ed8 100%); padding:5.5rem 0; text-align:center; }
.cta-banner h2 { color:#fff; margin-bottom:1rem; }
.cta-banner p  { color:rgba(255,255,255,0.72); font-size:1.1rem; max-width:500px; margin:0 auto 2.25rem; }

/* 12. ABOUT PAGE */
.about-story { display:grid; grid-template-columns:1fr 1.2fr; gap:5rem; align-items:center; }
.about-story-visual {
  background: linear-gradient(135deg,#1e3a8a 0%,#1d4ed8 55%,var(--accent) 100%);
  border-radius: var(--radius-lg);
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.75rem;
  color: #fff;
  text-align: center;
  padding: 2.5rem;
}
.big-number { font-size: 4rem; font-weight: 800; font-family: 'Playfair Display', serif; line-height: 1; }
.about-story-visual p { color:rgba(255,255,255,0.78); font-size:0.9rem; }

.value-card { background:#fff; border-radius:var(--radius); padding:2rem 1.75rem; border:1px solid var(--border); text-align:center; transition:all var(--ease); }
.value-card:hover { box-shadow:var(--shadow-lg); transform:translateY(-3px); }
.value-icon { font-size:2.5rem; margin-bottom:1rem; display:block; }
.value-card h3 { font-size:1.1rem; margin-bottom:0.5rem; }
.value-card p  { color:var(--text-muted); font-size:0.875rem; line-height:1.65; }

.tech-list { display:flex; flex-wrap:wrap; gap:0.75rem; justify-content:center; margin-top:2rem; }
.tech-tag { padding:0.45rem 1.2rem; background:var(--bg-alt); border:1px solid var(--border); border-radius:50px; font-size:0.875rem; font-weight:500; color:var(--text); transition:all var(--ease); }
.tech-tag:hover { border-color:var(--primary); color:var(--primary); background:rgba(29,78,216,0.05); }

/* 13. CONTACT PAGE */
.contact-layout { display:grid; grid-template-columns:1fr 1.65fr; gap:4.5rem; align-items:start; }
.contact-info-item { display:flex; align-items:flex-start; gap:1rem; margin-bottom:2rem; }
.contact-info-icon { width:46px; height:46px; min-width:46px; background:rgba(29,78,216,0.08); border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:1.15rem; }
.contact-info-item h4 { font-family:'Inter',sans-serif; font-size:0.75rem; font-weight:700; letter-spacing:0.09em; text-transform:uppercase; color:var(--text-muted); margin-bottom:0.2rem; }
.contact-info-item p  { font-size:0.92rem; color:var(--text); margin:0; }
.contact-info-item a  { color:var(--primary); transition:color var(--ease); }
.contact-info-item a:hover { color:var(--accent); }

.contact-form { background:#fff; border-radius:var(--radius-lg); padding:2.5rem; box-shadow:var(--shadow-lg); border:1px solid var(--border); }
.form-group  { margin-bottom:1.4rem; }
.form-row    { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
label        { display:block; font-size:0.82rem; font-weight:600; color:var(--text); margin-bottom:0.4rem; }
label .req   { color:var(--accent); margin-left:2px; }
input, textarea, select {
  width:100%; padding:0.825rem 1rem; border:1.5px solid var(--border); border-radius:10px;
  font-size:0.9rem; font-family:'Inter',sans-serif; color:var(--text); background:var(--bg);
  transition:all var(--ease); outline:none;
}
input:focus, textarea:focus, select:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(29,78,216,0.1); }
textarea { resize:vertical; min-height:140px; }
.form-submit { width:100%; padding:1rem; background:var(--accent); color:#fff; border:none; border-radius:50px; font-size:1rem; font-weight:700; cursor:pointer; transition:all var(--ease); font-family:'Inter',sans-serif; }
.form-submit:hover { background:var(--accent-dark); transform:translateY(-2px); box-shadow:0 8px 24px rgba(249,115,22,0.38); }

.alert { padding:0.9rem 1.2rem; border-radius:10px; margin-bottom:1.4rem; font-size:0.875rem; font-weight:500; display:flex; align-items:center; gap:0.65rem; }
.alert-success { background:rgba(16,185,129,0.09); border:1.5px solid rgba(16,185,129,0.3); color:#065f46; }
.alert-error   { background:rgba(239,68,68,0.09);  border:1.5px solid rgba(239,68,68,0.3);  color:#991b1b; }

/* 14. FOOTER */
.footer { background:var(--dark); color:rgba(255,255,255,0.6); padding:3.5rem 0 1.5rem; }
.footer-inner { display:grid; grid-template-columns:1.6fr 1fr 1fr; gap:3rem; margin-bottom:3rem; }
.footer-tagline { margin-top:1rem; font-size:0.875rem; line-height:1.7; max-width:275px; }
.footer-title { color:#fff; font-family:'Inter',sans-serif; font-size:0.72rem; font-weight:700; letter-spacing:0.1em; text-transform:uppercase; margin-bottom:1.25rem; }
.footer-links { display:flex; flex-direction:column; gap:0.6rem; }
.footer-links a, .footer-links span { font-size:0.875rem; color:rgba(255,255,255,0.55); transition:color var(--ease); }
.footer-links a:hover { color:var(--accent); }
.footer-bottom { padding-top:1.5rem; border-top:1px solid rgba(255,255,255,0.08); display:flex; justify-content:space-between; align-items:center; font-size:0.8rem; }

/* 15. FADE-IN ANIMATION */
.fade-in { opacity:0; transform:translateY(22px); transition:opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity:1; transform:translateY(0); }

/* 16. RESPONSIVE */
@media (max-width:900px) {
  .about-story { grid-template-columns:1fr; gap:2.5rem; }
  .contact-layout { grid-template-columns:1fr; gap:2.5rem; }
  .footer-inner { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .nav-toggle { display:flex; }
  .nav-links {
    display:none; position:fixed; top:var(--nav-h); left:0; right:0;
    background:#fff; flex-direction:column; padding:2rem 1.5rem;
    gap:1.5rem; box-shadow:0 12px 40px rgba(0,0,0,0.12); border-top:1px solid var(--border);
  }
  .nav-links.open { display:flex; }
  .nav-links a { color:var(--text)!important; }
  .form-row { grid-template-columns:1fr; }
  .contact-form { padding:1.75rem; }
  .footer-inner { grid-template-columns:1fr; gap:2rem; }
  .footer-bottom { flex-direction:column; gap:0.5rem; text-align:center; }
  .hero-stats { gap:2rem; }
}
@media (max-width:500px) {
  .section { padding:3.5rem 0; }
  .hero-buttons { flex-direction:column; align-items:flex-start; }
  .portfolio-grid { grid-template-columns:1fr; }
  .hero-stats { flex-wrap:wrap; gap:1.5rem; }
}