/* ============================================
   ALPHA INTERIOR SOLUTIONS - Design System
   Brand Colors: Navy #1B2A4A, Orange #E85D26
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&display=swap');

/* === CSS Variables === */
:root {
  --navy: #1B2A4A;
  --navy-light: #2A3F6B;
  --navy-dark: #0F1A2E;
  --orange: #E85D26;
  --orange-light: #FF7A45;
  --orange-dark: #C44A1A;
  --gold: #C9A96E;
  --gold-light: #E0C992;
  --cream: #FDF8F0;
  --white: #FFFFFF;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-500: #6B7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,.15);
  --shadow-xl: 0 20px 60px rgba(0,0,0,.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: .35s cubic-bezier(.4,0,.2,1);
}

/* === Reset === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-body);color:var(--gray-900);background:var(--white);overflow-x:hidden;line-height:1.7}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:var(--font-body)}

/* === Utility === */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section-pad{padding:100px 0}
.text-center{text-align:center}

/* === Typography === */
.section-label{font-family:var(--font-body);font-size:.8rem;font-weight:600;letter-spacing:3px;text-transform:uppercase;color:var(--orange);margin-bottom:12px;display:block}
.section-title{font-family:var(--font-display);font-size:clamp(2rem,4vw,3.2rem);font-weight:600;color:var(--navy);line-height:1.2;margin-bottom:20px}
.section-subtitle{font-size:1.1rem;color:var(--gray-500);max-width:600px;line-height:1.8}
.section-subtitle.center{margin:0 auto}

/* === Buttons === */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:.95rem;transition:var(--transition);letter-spacing:.5px}
.btn-primary{background:var(--orange);color:var(--white)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 25px rgba(232,93,38,.35)}
.btn-outline{border:2px solid var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:var(--white);transform:translateY(-2px)}
.btn-white{background:var(--white);color:var(--navy)}
.btn-white:hover{background:var(--cream);transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* === NAVBAR === */
.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:14px 0;transition:var(--transition)}
.navbar.scrolled{background:rgba(255,255,255,.97);backdrop-filter:blur(20px);padding:10px 0;box-shadow:var(--shadow-sm)}
.navbar .container{display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo img{height:100px;transition:var(--transition);background:rgba(255,255,255,.95);padding:8px 18px;border-radius:12px;box-shadow:0 2px 16px rgba(0,0,0,.12)}
.navbar.scrolled .nav-logo img{height:70px;padding:6px 14px}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--white);transition:var(--transition);position:relative}
.navbar.scrolled .nav-links a{color:var(--navy)}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--orange);transition:var(--transition)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{padding:10px 24px !important;background:var(--orange);color:var(--white) !important;border-radius:50px;font-weight:600}
.nav-cta::after{display:none !important}
.nav-cta:hover{background:var(--orange-dark);transform:translateY(-2px)}
.nav-hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;z-index:1001}
.nav-hamburger span{display:block;width:28px;height:2.5px;background:var(--white);border-radius:2px;transition:var(--transition)}
.footer-brand img{height:90px !important;background:rgba(255,255,255,.95);padding:10px 20px;border-radius:12px;filter:none !important;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.navbar.scrolled .nav-hamburger span{background:var(--navy)}

/* === HERO === */
.hero{position:relative;height:100vh;min-height:700px;display:flex;align-items:center;overflow:hidden}
.hero-slider{position:absolute;inset:0}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,26,46,.85) 0%,rgba(27,42,74,.6) 50%,rgba(27,42,74,.4) 100%)}
.hero-content{position:relative;z-index:2;max-width:700px}
.hero-content .section-label{color:var(--gold-light);font-size:.85rem;letter-spacing:4px;margin-bottom:20px}
.hero-content h1{font-family:var(--font-display);font-size:clamp(2.5rem,5.5vw,4.2rem);font-weight:700;color:var(--white);line-height:1.15;margin-bottom:24px}
.hero-content h1 span{color:var(--orange)}
.hero-content p{font-size:1.15rem;color:rgba(255,255,255,.8);line-height:1.9;margin-bottom:36px;max-width:540px}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
.hero-scroll{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);z-index:2;display:flex;flex-direction:column;align-items:center;gap:8px;color:rgba(255,255,255,.6);font-size:.75rem;letter-spacing:2px;text-transform:uppercase;animation:float 2s ease-in-out infinite}
.hero-scroll .line{width:1px;height:40px;background:linear-gradient(to bottom,var(--orange),transparent)}
@keyframes float{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* Slide indicators */
.hero-indicators{position:absolute;right:40px;top:50%;transform:translateY(-50%);z-index:3;display:flex;flex-direction:column;gap:12px}
.hero-indicators button{width:12px;height:12px;border-radius:50%;border:2px solid rgba(255,255,255,.4);background:transparent;transition:var(--transition);padding:0}
.hero-indicators button.active{background:var(--orange);border-color:var(--orange);transform:scale(1.2)}

/* === STATS BAR === */
.stats-bar{background:var(--navy);padding:50px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.stat-item{position:relative}
.stat-item:not(:last-child)::after{content:'';position:absolute;right:0;top:10%;height:80%;width:1px;background:rgba(255,255,255,.15)}
.stat-number{font-family:var(--font-display);font-size:2.8rem;font-weight:700;color:var(--orange);display:block}
.stat-label{font-size:.9rem;color:rgba(255,255,255,.7);margin-top:4px}

/* === ABOUT === */
.about{background:var(--white)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-image{position:relative;border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/5}
.about-image img{width:100%;height:100%;object-fit:cover}
.about-image::after{content:'';position:absolute;inset:0;border:2px solid var(--orange);border-radius:var(--radius-lg);transform:translate(15px,15px);z-index:-1;opacity:.4}
.about-features{display:flex;flex-direction:column;gap:24px;margin-top:32px}
.about-feature{display:flex;gap:16px;align-items:flex-start}
.about-feature .icon{width:48px;height:48px;min-width:48px;background:linear-gradient(135deg,var(--orange),var(--orange-dark));border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--white);font-size:1.2rem}
.about-feature h4{font-size:1.05rem;font-weight:600;color:var(--navy);margin-bottom:4px}
.about-feature p{font-size:.9rem;color:var(--gray-500);line-height:1.6}

/* === PRODUCTS === */
.products{background:var(--gray-50)}
.products-header{text-align:center;margin-bottom:60px}
.product-tabs{display:flex;justify-content:center;gap:8px;margin-top:30px;flex-wrap:wrap}
.product-tabs button{padding:10px 24px;border-radius:50px;font-size:.85rem;font-weight:500;color:var(--gray-500);border:1px solid var(--gray-200);background:var(--white);transition:var(--transition)}
.product-tabs button.active,.product-tabs button:hover{background:var(--navy);color:var(--white);border-color:var(--navy)}
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:30px}
.product-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:var(--transition);position:relative}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.product-card .image-wrap{position:relative;aspect-ratio:4/3;overflow:hidden}
.product-card .image-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.product-card:hover .image-wrap img{transform:scale(1.08)}
.product-card .badge{position:absolute;top:16px;left:16px;background:var(--orange);color:var(--white);padding:5px 14px;border-radius:50px;font-size:.75rem;font-weight:600;letter-spacing:1px;text-transform:uppercase}
.product-card .card-body{padding:24px}
.product-card h3{font-family:var(--font-display);font-size:1.3rem;color:var(--navy);margin-bottom:8px}
.product-card p{font-size:.9rem;color:var(--gray-500);line-height:1.7;margin-bottom:16px}
.product-card .card-link{display:inline-flex;align-items:center;gap:6px;color:var(--orange);font-weight:600;font-size:.9rem;transition:var(--transition)}
.product-card .card-link:hover{gap:10px}

/* === SERVICES === */
.services{background:var(--white)}
.services-header{text-align:center;margin-bottom:60px}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.service-card{padding:40px 30px;border-radius:var(--radius-md);border:1px solid var(--gray-200);text-align:center;transition:var(--transition);position:relative;overflow:hidden}
.service-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--orange),var(--gold));transform:scaleX(0);transition:var(--transition);transform-origin:left}
.service-card:hover{border-color:transparent;box-shadow:var(--shadow-lg);transform:translateY(-5px)}
.service-card:hover::before{transform:scaleX(1)}
.service-card .icon{width:70px;height:70px;margin:0 auto 20px;border-radius:50%;background:linear-gradient(135deg,rgba(232,93,38,.1),rgba(232,93,38,.05));display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:var(--orange);transition:var(--transition)}
.service-card:hover .icon{background:linear-gradient(135deg,var(--orange),var(--orange-dark));color:var(--white);transform:scale(1.1)}
.service-card h3{font-family:var(--font-display);font-size:1.25rem;color:var(--navy);margin-bottom:12px}
.service-card p{font-size:.9rem;color:var(--gray-500);line-height:1.7}

/* === GALLERY === */
.gallery{background:var(--navy-dark);color:var(--white)}
.gallery .section-label{color:var(--gold-light)}
.gallery .section-title{color:var(--white)}
.gallery .section-subtitle{color:rgba(255,255,255,.6)}
.gallery-header{text-align:center;margin-bottom:50px}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.gallery-item{position:relative;aspect-ratio:1;overflow:hidden;cursor:pointer}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.gallery-item:hover img{transform:scale(1.1)}
.gallery-item .overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(15,26,46,.8),transparent);opacity:0;transition:var(--transition);display:flex;align-items:flex-end;padding:20px}
.gallery-item:hover .overlay{opacity:1}
.gallery-item .overlay span{color:var(--white);font-family:var(--font-display);font-size:1.1rem}
.gallery-item:first-child{grid-column:span 2;grid-row:span 2;aspect-ratio:auto}

/* === PROCESS === */
.process{background:var(--cream)}
.process-header{text-align:center;margin-bottom:60px}
.process-timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;position:relative}
.process-timeline::before{content:'';position:absolute;top:40px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--orange),var(--gold),var(--navy))}
.process-step{text-align:center;position:relative;z-index:1}
.process-step .step-number{width:80px;height:80px;margin:0 auto 24px;border-radius:50%;background:var(--white);border:3px solid var(--orange);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:1.8rem;font-weight:700;color:var(--orange);box-shadow:var(--shadow-md);transition:var(--transition)}
.process-step:hover .step-number{background:var(--orange);color:var(--white);transform:scale(1.1)}
.process-step h4{font-size:1.1rem;font-weight:600;color:var(--navy);margin-bottom:8px}
.process-step p{font-size:.85rem;color:var(--gray-500);line-height:1.6}

/* === TESTIMONIALS === */
.testimonials{background:var(--white)}
.testimonials-header{text-align:center;margin-bottom:50px}
.testimonials-slider{max-width:800px;margin:0 auto;position:relative}
.testimonial{text-align:center;padding:40px;display:none}
.testimonial.active{display:block;animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}
.testimonial .stars{color:var(--gold);font-size:1.2rem;margin-bottom:20px;letter-spacing:4px}
.testimonial blockquote{font-family:var(--font-display);font-size:1.4rem;font-style:italic;color:var(--navy);line-height:1.7;margin-bottom:24px;position:relative}
.testimonial blockquote::before{content:'\201C';font-size:4rem;color:var(--orange);position:absolute;top:-20px;left:-10px;opacity:.3;font-family:Georgia}
.testimonial .author{font-weight:600;color:var(--gray-700)}
.testimonial .role{font-size:.85rem;color:var(--gray-500);margin-top:4px}
.testimonial-nav{display:flex;justify-content:center;gap:10px;margin-top:30px}
.testimonial-nav button{width:10px;height:10px;border-radius:50%;background:var(--gray-300);border:none;transition:var(--transition)}
.testimonial-nav button.active{background:var(--orange);width:30px;border-radius:5px}

/* === CTA BANNER === */
.cta-banner{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);padding:80px 0;text-align:center;position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;top:-50%;right:-20%;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(232,93,38,.15),transparent 70%)}
.cta-banner h2{font-family:var(--font-display);font-size:clamp(1.8rem,3.5vw,2.8rem);color:var(--white);margin-bottom:16px}
.cta-banner p{color:rgba(255,255,255,.7);font-size:1.1rem;margin-bottom:36px;max-width:500px;margin-left:auto;margin-right:auto}
.cta-banner .btn-primary{font-size:1.05rem;padding:16px 40px}

/* === CONTACT === */
.contact{background:var(--gray-50)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}
.contact-info h3{font-family:var(--font-display);font-size:1.6rem;color:var(--navy);margin-bottom:20px}
.contact-info>p{color:var(--gray-500);line-height:1.8;margin-bottom:30px}
.contact-detail{display:flex;gap:16px;align-items:flex-start;margin-bottom:24px}
.contact-detail .icon{width:48px;height:48px;min-width:48px;border-radius:12px;background:linear-gradient(135deg,rgba(232,93,38,.1),rgba(232,93,38,.05));display:flex;align-items:center;justify-content:center;color:var(--orange);font-size:1.2rem}
.contact-detail h4{font-weight:600;color:var(--navy);margin-bottom:2px;font-size:.95rem}
.contact-detail p,.contact-detail a{font-size:.9rem;color:var(--gray-500);line-height:1.6}
.contact-detail a:hover{color:var(--orange)}
.contact-form{background:var(--white);padding:40px;border-radius:var(--radius-md);box-shadow:var(--shadow-md)}
.contact-form h3{font-family:var(--font-display);font-size:1.4rem;color:var(--navy);margin-bottom:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:.85rem;font-weight:500;color:var(--navy);margin-bottom:6px}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;border:1px solid var(--gray-200);border-radius:var(--radius-sm);font-family:var(--font-body);font-size:.95rem;transition:var(--transition);background:var(--gray-50)}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(232,93,38,.1);background:var(--white)}
.form-group textarea{resize:vertical;min-height:120px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form .btn{width:100%;justify-content:center}

/* === FOOTER === */
.footer{background:var(--navy-dark);color:var(--white);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand img{height:90px;margin-bottom:16px;background:rgba(255,255,255,.95);padding:10px 20px;border-radius:12px}
.footer-brand p{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.7}
.footer h4{font-size:1rem;font-weight:600;margin-bottom:20px;color:var(--white)}
.footer ul li{margin-bottom:10px}
.footer ul a{color:rgba(255,255,255,.6);font-size:.9rem;transition:var(--transition)}
.footer ul a:hover{color:var(--orange);padding-left:4px}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);transition:var(--transition);font-size:.9rem}
.footer-social a:hover{background:var(--orange);border-color:var(--orange);color:var(--white)}
.footer-bottom{padding:20px 0;text-align:center}
.footer-bottom p{color:rgba(255,255,255,.4);font-size:.8rem}

/* === LIGHTBOX === */
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:9999;display:none;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.lightbox.open{display:flex;opacity:1}
.lightbox img{max-width:90%;max-height:85vh;border-radius:var(--radius-sm);box-shadow:var(--shadow-xl)}
.lightbox-close{position:absolute;top:20px;right:30px;color:var(--white);font-size:2rem;cursor:pointer;transition:var(--transition)}
.lightbox-close:hover{color:var(--orange)}

/* === SCROLL ANIMATIONS === */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* === RESPONSIVE === */
@media(max-width:1024px){
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .process-timeline{grid-template-columns:repeat(2,1fr)}
  .process-timeline::before{display:none}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-item:first-child{grid-column:span 1;grid-row:span 1}
}
@media(max-width:768px){
  .nav-links{position:fixed;top:0;right:-100%;width:280px;height:100vh;background:var(--navy-dark);flex-direction:column;justify-content:center;gap:24px;transition:var(--transition);padding:40px}
  .nav-links.open{right:0}
  .nav-links a{color:var(--white) !important;font-size:1.1rem}
  .nav-hamburger{display:flex}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .stat-item:not(:last-child)::after{display:none}
  .services-grid{grid-template-columns:1fr}
  .products-grid{grid-template-columns:1fr}
  .process-timeline{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-indicators{right:16px}
  .form-row{grid-template-columns:1fr}
  .section-pad{padding:60px 0}
  .about-image{max-width:400px;margin:0 auto}
  .hero-content h1{font-size:2.2rem}
}