/* ═══════════════════════════════════════════════════════
   StudyReps Landing Page — BoldVoice-Inspired Design
   Warm cream aesthetic with orange accents
   ═══════════════════════════════════════════════════════ */

:root {
  --cream: #FAF5F0;
  --cream-dark: #F0E8E0;
  --white: #FFFFFF;
  --card: #FFFFFF;
  --dark-card: #1C1C1E;
  --orange: #FF7043;
  --orange-light: #FF8A65;
  --orange-dark: #E64A19;
  --orange-glow: rgba(255, 112, 67, 0.15);
  --green: #4A9B5F;
  --text-dark: #1A1A1A;
  --text-medium: #666666;
  --text-light: #999999;
  --text-on-dark: #F5F5F5;
  --text-muted-dark: #8E8E93;
  --border: #E8E0D8;
  --chip-bg: #F0E8E0;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --section-pad: 100px 0;
  --max-w: 1200px;
  --nav-h: 72px;
}

/* ── Reset ── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-body);background:var(--cream);color:var(--text-dark);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max-w);margin:0 auto;padding:0 24px}

/* ── Announcement Bar ── */
.announcement-bar{background:var(--dark-card);color:var(--text-on-dark);text-align:center;padding:10px 16px;font-size:13px;font-weight:500;letter-spacing:.02em}
.announcement-bar a{color:var(--orange-light);font-weight:600;transition:color .2s}
.announcement-bar a:hover{color:var(--orange)}

/* ── Navbar ── */
.navbar{position:sticky;top:0;z-index:100;background:rgba(250,245,240,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);height:var(--nav-h);transition:box-shadow .3s}
.navbar.scrolled{box-shadow:0 4px 24px rgba(0,0,0,.06)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-logo{display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-weight:800;font-size:22px;color:var(--text-dark)}
.nav-logo-icon{width:36px;height:36px;border-radius:10px;background:var(--orange);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:14px;font-weight:500;color:var(--text-medium);transition:color .2s}
.nav-links a:hover{color:var(--text-dark)}
.nav-cta{background:var(--text-dark)!important;color:#fff!important;padding:10px 24px!important;border-radius:100px!important;font-weight:600!important;transition:all .3s!important}
.nav-cta:hover{background:var(--orange)!important;transform:translateY(-1px);box-shadow:0 4px 16px var(--orange-glow)}
.mobile-menu-btn{display:none;background:none;border:none;font-size:28px;color:var(--text-dark);cursor:pointer;padding:4px}
.mobile-nav{display:none;position:fixed;top:var(--nav-h);left:0;right:0;background:var(--cream);border-bottom:1px solid var(--border);padding:16px 24px;z-index:99;flex-direction:column;gap:16px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.mobile-nav.open{display:flex}
.mobile-nav a{font-size:16px;font-weight:500;color:var(--text-medium);padding:8px 0}

/* ── Hero ── */
.hero{padding:80px 0 60px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-200px;right:-150px;width:500px;height:500px;background:radial-gradient(circle,var(--orange-glow) 0%,transparent 70%);z-index:0}
.hero .container{display:flex;align-items:center;gap:60px;position:relative;z-index:1}
.hero-content{flex:1;max-width:560px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:var(--orange-glow);color:var(--orange-dark);padding:8px 16px;border-radius:100px;font-size:13px;font-weight:600;margin-bottom:28px;border:1px solid rgba(255,112,67,.2)}
.hero h1{font-family:var(--font-heading);font-size:58px;font-weight:800;line-height:1.08;letter-spacing:-.03em;color:var(--text-dark);margin-bottom:24px}
.hero h1 span{color:var(--orange)}
.hero-subtitle{font-size:18px;color:var(--text-medium);line-height:1.7;margin-bottom:36px;max-width:480px}
.hero-actions{display:flex;gap:16px;margin-bottom:48px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#fff;padding:16px 32px;border-radius:100px;font-family:var(--font-heading);font-weight:700;font-size:16px;border:none;cursor:pointer;transition:all .3s;box-shadow:0 4px 16px var(--orange-glow)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-2px);box-shadow:0 8px 32px rgba(255,112,67,.3)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--text-dark);padding:16px 32px;border-radius:100px;font-family:var(--font-heading);font-weight:600;font-size:16px;border:2px solid var(--border);cursor:pointer;transition:all .3s}
.btn-secondary:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
.hero-social-proof{display:flex;align-items:center;gap:16px}
.avatar-stack{display:flex}
.avatar-stack .avatar{width:36px;height:36px;border-radius:50%;border:3px solid var(--cream);margin-left:-10px;background:var(--chip-bg);display:flex;align-items:center;justify-content:center;font-size:14px}
.avatar-stack .avatar:first-child{margin-left:0}
.hero-social-proof p{font-size:14px;color:var(--text-medium)}
.hero-social-proof strong{color:var(--text-dark)}
.hero-visual{flex:1;display:flex;justify-content:center;align-items:center;position:relative}
.hero-mockup{width:100%;max-width:520px;border-radius:20px;animation:heroFloat 6s ease-in-out infinite}
@keyframes heroFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

/* ── Logos Bar ── */
.logos-bar{padding:40px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.logos-bar p{text-align:center;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--text-light);margin-bottom:24px}
.logos-grid{display:flex;align-items:center;justify-content:center;gap:48px;flex-wrap:wrap}
.logos-grid .logo-item{font-family:var(--font-heading);font-weight:700;font-size:20px;color:var(--text-light);opacity:.45;transition:opacity .3s}
.logos-grid .logo-item:hover{opacity:1}

/* ── Problem Section ── */
.problem-section{padding:var(--section-pad)}
.problem-section .container{text-align:center;max-width:700px}
.section-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--orange);margin-bottom:20px}
.problem-section h2{font-family:var(--font-heading);font-size:44px;font-weight:800;line-height:1.15;letter-spacing:-.02em;margin-bottom:40px}
.problem-section h2 span{color:var(--orange)}
.problem-statements{display:flex;flex-direction:column;gap:14px;align-items:center}
.problem-statement{font-size:17px;color:var(--text-medium);line-height:1.6;padding:16px 28px;background:var(--card);border-radius:16px;border:1px solid var(--border);max-width:520px;width:100%;transition:all .3s}
.problem-statement:hover{border-color:var(--orange);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.04)}
.problem-statement.highlight{background:var(--orange);color:#fff;border-color:var(--orange);font-weight:600}

/* ── How It Works ── */
.how-it-works{padding:var(--section-pad);background:var(--card)}
.how-it-works h2{font-family:var(--font-heading);font-size:44px;font-weight:800;text-align:center;line-height:1.15;letter-spacing:-.02em;margin-bottom:64px}
.how-it-works h2 span{color:var(--orange)}
.steps-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;max-width:960px;margin:0 auto;align-items:center}
.steps-list{display:flex;flex-direction:column;gap:0}
.step-item{display:flex;align-items:flex-start;gap:20px;padding:28px 0;border-bottom:1px solid var(--border)}
.step-item:last-child{border-bottom:none}
.step-number{width:44px;height:44px;min-width:44px;border-radius:12px;background:var(--orange);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-heading);font-weight:800;font-size:18px}
.step-content h3{font-family:var(--font-heading);font-size:18px;font-weight:700;margin-bottom:6px}
.step-content p{font-size:15px;color:var(--text-medium);line-height:1.6}
.steps-visual{display:flex;justify-content:center}
.steps-visual img{max-width:340px;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.08)}

/* ── Features ── */
.features-section{padding:var(--section-pad)}
.features-section h2{font-family:var(--font-heading);font-size:44px;font-weight:800;text-align:center;line-height:1.15;letter-spacing:-.02em;margin-bottom:12px}
.features-section h2 span{color:var(--orange)}
.features-subtitle{text-align:center;font-size:18px;color:var(--text-medium);margin-bottom:64px;max-width:600px;margin-left:auto;margin-right:auto}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card);border-radius:20px;padding:32px;border:1px solid var(--border);transition:all .4s;position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--orange);transform:scaleX(0);transition:transform .4s}
.feature-card:hover::before{transform:scaleX(1)}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.06);border-color:transparent}
.feature-icon{width:52px;height:52px;border-radius:14px;background:var(--orange-glow);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:20px}
.feature-card h3{font-family:var(--font-heading);font-size:18px;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--text-medium);line-height:1.6}

/* ── Dual Feature (Video + AI) ── */
.dual-feature{padding:var(--section-pad);background:var(--card)}
.dual-feature h2{font-family:var(--font-heading);font-size:44px;font-weight:800;text-align:center;line-height:1.15;letter-spacing:-.02em;margin-bottom:64px}
.dual-feature h2 span{color:var(--orange)}
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;max-width:920px;margin:0 auto}
.dual-card{padding:40px;border-radius:24px;border:1px solid var(--border);transition:all .3s}
.dual-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.06)}
.dual-card.dark{background:var(--dark-card);border-color:transparent;color:var(--text-on-dark)}
.dual-card h3{font-family:var(--font-heading);font-size:22px;font-weight:700;margin-bottom:20px}
.dual-card .card-icon{font-size:40px;margin-bottom:16px;display:block}
.dual-card ul{display:flex;flex-direction:column;gap:12px}
.dual-card ul li{display:flex;align-items:flex-start;gap:10px;font-size:15px;line-height:1.5;color:var(--text-medium)}
.dual-card.dark ul li{color:var(--text-muted-dark)}
.dual-card ul li .check{color:var(--orange);font-weight:700;min-width:18px}

/* ── App Showcase ── */
.app-showcase{padding:var(--section-pad);overflow:hidden}
.app-showcase h2{font-family:var(--font-heading);font-size:44px;font-weight:800;text-align:center;line-height:1.15;letter-spacing:-.02em;margin-bottom:12px}
.app-showcase h2 span{color:var(--orange)}
.app-showcase .features-subtitle{margin-bottom:48px}
.showcase-track{display:flex;gap:24px;animation:scrollTrack 30s linear infinite;width:max-content}
.showcase-track:hover{animation-play-state:paused}
.showcase-card{min-width:280px;border-radius:20px;overflow:hidden;box-shadow:0 12px 40px rgba(0,0,0,.06);border:1px solid var(--border);transition:transform .3s}
.showcase-card:hover{transform:scale(1.03)}
.showcase-card img{width:280px;height:560px;object-fit:cover}
@keyframes scrollTrack{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ── Testimonials ── */
.testimonials{padding:var(--section-pad)}
.testimonials h2{font-family:var(--font-heading);font-size:44px;font-weight:800;text-align:center;line-height:1.15;letter-spacing:-.02em;margin-bottom:64px}
.testimonials h2 span{color:var(--orange)}
.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.testimonial-card{background:var(--card);border-radius:20px;padding:32px;border:1px solid var(--border);transition:all .3s}
.testimonial-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.06)}
.testimonial-stars{color:var(--orange);font-size:18px;margin-bottom:16px;letter-spacing:2px}
.testimonial-card h4{font-family:var(--font-heading);font-weight:700;margin-bottom:12px}
.testimonial-card p{font-size:15px;color:var(--text-medium);line-height:1.6;margin-bottom:20px}
.testimonial-author{display:flex;align-items:center;gap:12px}
.testimonial-avatar{width:40px;height:40px;border-radius:50%;background:var(--chip-bg);display:flex;align-items:center;justify-content:center;font-size:16px}
.testimonial-author span{font-size:13px;font-weight:600;color:var(--text-light)}

/* ── FAQ ── */
.faq-section{padding:var(--section-pad);background:var(--card)}
.faq-section h2{font-family:var(--font-heading);font-size:44px;font-weight:800;text-align:center;margin-bottom:48px}
.faq-list{max-width:700px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border)}
.faq-question{width:100%;background:none;border:none;padding:24px 0;text-align:left;font-family:var(--font-heading);font-size:17px;font-weight:600;color:var(--text-dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:color .2s}
.faq-question:hover{color:var(--orange)}
.faq-question .faq-icon{font-size:24px;transition:transform .3s;color:var(--orange)}
.faq-item.active .faq-question .faq-icon{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease,padding .3s ease}
.faq-item.active .faq-answer{max-height:300px;padding-bottom:24px}
.faq-answer p{font-size:15px;color:var(--text-medium);line-height:1.7}

/* ── CTA ── */
.cta-section{padding:80px 0}
.cta-card{background:var(--dark-card);border-radius:32px;padding:80px 60px;text-align:center;position:relative;overflow:hidden}
.cta-card::before{content:'';position:absolute;top:-100px;right:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(255,112,67,.2) 0%,transparent 70%)}
.cta-card::after{content:'';position:absolute;bottom:-100px;left:-100px;width:300px;height:300px;background:radial-gradient(circle,rgba(255,112,67,.1) 0%,transparent 70%)}
.cta-card h2{font-family:var(--font-heading);font-size:44px;font-weight:800;color:var(--text-on-dark);margin-bottom:16px;position:relative;z-index:1}
.cta-card p{font-size:18px;color:var(--text-muted-dark);margin-bottom:36px;position:relative;z-index:1}
.cta-card .btn-primary{position:relative;z-index:1;font-size:18px;padding:18px 40px}

/* ── Footer ── */
.footer{padding:60px 0 30px;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .nav-logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-medium);line-height:1.7;max-width:280px}
.footer-col h4{font-family:var(--font-heading);font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--text-dark);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-medium);transition:color .2s}
.footer-col a:hover{color:var(--orange)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid var(--border)}
.footer-bottom p{font-size:13px;color:var(--text-light)}
.footer-bottom-links{display:flex;gap:24px}
.footer-bottom-links a{font-size:13px;color:var(--text-light);transition:color .2s}
.footer-bottom-links a:hover{color:var(--orange)}

/* ── Scroll Animations ── */
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
.fade-in-delay-1{transition-delay:.1s}.fade-in-delay-2{transition-delay:.2s}.fade-in-delay-3{transition-delay:.3s}.fade-in-delay-4{transition-delay:.4s}.fade-in-delay-5{transition-delay:.5s}

/* ── Responsive ── */
@media(max-width:1024px){
  .hero h1{font-size:46px}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .testimonials-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .steps-grid{grid-template-columns:1fr}
  .steps-visual{margin-top:32px}
}
@media(max-width:768px){
  :root{--section-pad:60px 0}
  .nav-links{display:none}
  .mobile-menu-btn{display:block}
  .hero .container{flex-direction:column;text-align:center}
  .hero-content{max-width:100%}
  .hero h1{font-size:36px}
  .hero-subtitle{max-width:100%}
  .hero-actions{justify-content:center;flex-wrap:wrap}
  .hero-social-proof{justify-content:center}
  .hero-visual{max-width:400px;margin:0 auto}
  .problem-section h2,.how-it-works h2,.features-section h2,.dual-feature h2,.testimonials h2,.faq-section h2,.cta-card h2,.app-showcase h2{font-size:30px}
  .features-grid,.testimonials-grid{grid-template-columns:1fr}
  .dual-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center}
  .cta-card{padding:48px 24px}
  .cta-card .btn-primary{font-size:16px;padding:16px 32px}
  .showcase-card img{width:220px;height:440px}
  .showcase-card{min-width:220px}
}
@media(max-width:480px){
  .hero h1{font-size:30px}
  .btn-primary,.btn-secondary{padding:14px 24px;font-size:15px}
}