/* ============================================================
   AI AUTOMATION STUDIO DK — style.css  (Light Theme · TUB Palette)
   Forest Green #42635D · Orange #CC5C3E · Sage #C9DDB4 · Yellow #F0D054
   ============================================================ */

:root {
  /* Backgrounds */
  --bg:         #EDEAE4;
  --surface:    #F5F0E8;
  --surface-2:  #EDE8DF;
  --dark:       #1A2520;
  --dark-2:     #243028;

  /* Brand Forest Green */
  --accent:     #42635D;
  --accent-2:   #2D4A44;
  --accent-l:   #5B8A82;
  --accent-pale: rgba(66,99,93,0.1);

  /* TUB Palette — Orange, Sage, Yellow */
  --orange:     #CC5C3E;
  --orange-l:   #E8846A;
  --orange-pale: rgba(204,92,62,0.1);
  --sage:       #C9DDB4;
  --sage-d:     #7BAA74;
  --sage-pale:  rgba(201,221,180,0.35);
  --yellow:     #F0D054;
  --yellow-d:   #C9A830;
  --yellow-pale: rgba(240,208,84,0.18);

  /* CTA */
  --cta:        #D6E87A;
  --warm:       #F0D054;

  /* Text */
  --text:       #191919;
  --text-on-dark: #F9FAFB;
  --muted:      #4A5E59;
  --dim:        #8A9E9B;

  /* Structure */
  --border:     rgba(66,99,93,0.14);
  --border-b:   rgba(66,99,93,0.28);
  --card:       #FAF7F2;
  --card-h:     #F0EBE2;
  --font:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius:     12px;
  --radius-lg:  20px;
  --shadow:     0 2px 16px rgba(60,40,20,0.07);
  --shadow-md:  0 6px 28px rgba(60,40,20,0.11);
  --shadow-lg:  0 12px 48px rgba(60,40,20,0.15);
  --glow:       0 0 40px rgba(66,99,93,0.18);
  --transition: 0.25s ease;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============================================================ BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 50px; font-weight: 600; font-size: 1rem;
  cursor: pointer; border: 2px solid transparent; transition: all var(--transition);
  font-family: var(--font); white-space: nowrap;
}
.btn--primary { background: var(--cta); color: #111; border-color: transparent; }
.btn--primary:hover { background: #c5d96c; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(214,232,122,0.45); }
.btn--outline { background: transparent; color: var(--text-on-dark); border-color: rgba(255,255,255,0.55); }
.btn--outline:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.85); }
.btn--outline-light { background: transparent; color: var(--text-on-dark); border-color: rgba(255,255,255,0.45); }
.btn--outline-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.75); }
.btn--green { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn--green:hover { background: var(--accent-2); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--white { background: #fff; color: var(--accent); border-color: #fff; }
.btn--white:hover { background: var(--cta); color: #111; transform: translateY(-2px); }
.btn--large { padding: 16px 36px; font-size: 1.05rem; }
.btn--full { width: 100%; }

/* ============================================================ SECTION COMMON */
.section-tag {
  display: inline-block;
  background: var(--orange-pale); color: var(--orange);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 6px 16px; border-radius: 50px; margin-bottom: 16px;
  border: 1px solid rgba(204,92,62,0.25);
}
.section-tag--light { background: rgba(255,255,255,0.15); color: var(--text-on-dark); border-color: rgba(255,255,255,0.3); }
.section-title { font-size: 2.5rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px; color: var(--text); }
.section-title--light { color: var(--text-on-dark); }
.section-subtitle { font-size: 1.05rem; color: var(--muted); max-width: 600px; margin-bottom: 48px; line-height: 1.7; }
.section-subtitle--light { color: rgba(255,255,255,0.72); }
.text-accent { background: linear-gradient(135deg, #D6E87A, #ECCC78); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ============================================================ HEADER */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border); transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.nav { display: flex; align-items: center; gap: 24px; padding: 14px 24px; max-width: 1200px; margin: 0 auto; }
.nav__logo { font-size: 1.05rem; font-weight: 800; color: var(--accent); display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.logo-icon { color: var(--accent); width: 20px; height: 20px; flex-shrink: 0; }
.nav__menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__link { font-size: 0.88rem; font-weight: 500; color: var(--muted); padding: 7px 12px; border-radius: 8px; transition: color var(--transition); }
.nav__link:hover, .nav__link--active { color: var(--accent); }
.nav__cta { margin-left: 12px; padding: 10px 20px; font-size: 0.88rem; }
.nav__hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__hamburger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); display: block; }

/* ============================================================ HERO (dark — forest green) */
.hero {
  min-height: 100vh;
  background: var(--dark);
  display: flex; align-items: center; position: relative; overflow: hidden; padding-top: 80px;
}
.hero::before {
  content: ''; position: absolute;
  top: -200px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px;
  background: radial-gradient(ellipse, rgba(66,99,93,0.5) 0%, rgba(214,232,122,0.08) 45%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  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='%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/svg%3E");
  pointer-events: none;
}
.hero__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 80px 24px; position: relative; z-index: 1; max-width: 1200px; margin: 0 auto; width: 100%; }
.hero__badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(214,232,122,0.12); color: var(--cta); font-size: 0.82rem; font-weight: 600; padding: 8px 16px; border-radius: 50px; margin-bottom: 24px; border: 1px solid rgba(214,232,122,0.3); }
.hero__badge [data-lucide] { width: 14px; height: 14px; }
.hero__title { font-size: 3.8rem; font-weight: 900; line-height: 1.08; color: var(--text-on-dark); margin-bottom: 24px; }
.hero__subtitle { font-size: 1.1rem; color: rgba(255,255,255,0.72); line-height: 1.75; margin-bottom: 40px; max-width: 480px; }
.hero__ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__visual { position: relative; display: flex; align-items: center; justify-content: center; height: 420px; }
.hero__blob { width: 360px; height: 360px; border-radius: 60% 40% 70% 30% / 40% 60% 40% 60%; background: rgba(66,99,93,0.25); animation: blob 8s ease-in-out infinite; border: 1px solid rgba(214,232,122,0.2); }
@keyframes blob { 0%,100% { border-radius: 60% 40% 70% 30% / 40% 60% 40% 60%; } 50% { border-radius: 30% 70% 40% 60% / 60% 40% 60% 40%; } }
.hero__card-float { position: absolute; background: rgba(255,255,255,0.1); backdrop-filter: blur(10px); color: var(--text-on-dark); font-size: 0.83rem; font-weight: 600; padding: 12px 18px; border-radius: var(--radius); box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 10px; animation: float 4s ease-in-out infinite; border: 1px solid rgba(255,255,255,0.15); }
.hero__card-float [data-lucide] { width: 18px; height: 18px; color: var(--cta); flex-shrink: 0; }
.hero__card-float--1 { top: 18%; left: -10px; animation-delay: 0s; }
.hero__card-float--2 { top: 48%; right: -10px; animation-delay: 1.5s; }
.hero__card-float--3 { bottom: 18%; left: 8%; animation-delay: 3s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero__wave { position: absolute; bottom: -1px; left: 0; right: 0; }
.hero__wave svg { display: block; width: 100%; }

/* ============================================================ VALUE PROP (light) */
.value-prop { background: var(--surface); padding: 88px 0; text-align: center; }
.value-prop .section-subtitle { margin: 0 auto 48px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.stat-card { background: var(--card); border: 1px solid var(--border); padding: 36px 24px; border-radius: var(--radius-lg); text-align: center; box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition); border-top: 4px solid var(--accent); }
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.stat-card:nth-child(1) { border-top-color: var(--orange); }
.stat-card:nth-child(2) { border-top-color: var(--yellow); }
.stat-card:nth-child(3) { border-top-color: var(--sage-d); }
.stat-card:nth-child(4) { border-top-color: var(--accent); }
.stat-number { font-size: 3rem; font-weight: 900; line-height: 1; margin-bottom: 10px; }
.stat-card:nth-child(1) .stat-number { color: var(--orange); }
.stat-card:nth-child(2) .stat-number { color: var(--yellow-d); }
.stat-card:nth-child(3) .stat-number { color: var(--sage-d); }
.stat-card:nth-child(4) .stat-number { color: var(--accent); }
.stat-label { font-size: 0.88rem; color: var(--muted); font-weight: 500; }

/* ============================================================ COMPARISON (white) */
.comparison { padding: 88px 0; background: var(--bg); text-align: center; }
.comparison__inner-wrap { background: var(--accent); border-radius: var(--radius-lg); padding: 48px; max-width: 940px; margin: 0 auto; }
.comparison__inner-wrap .section-tag { background: rgba(214,232,122,0.15); color: var(--cta); border-color: rgba(214,232,122,0.3); }
.comparison__inner-wrap .section-title { color: #fff; }
.comparison__inner-wrap .section-subtitle { color: rgba(255,255,255,0.75); }
.comparison__table { display: grid; grid-template-columns: 1fr 1fr; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.comparison__col--old { background: var(--orange); padding: 40px; }
.comparison__col--new { background: var(--sage); padding: 40px; }
.comparison__col-header { display: flex; align-items: center; gap: 10px; font-size: 1.05rem; font-weight: 700; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 2px solid; }
.comparison__col--old .comparison__col-header { border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.9); }
.comparison__col--new .comparison__col-header { border-color: rgba(66,99,93,0.3); color: var(--accent-2); }
.comparison__list { display: flex; flex-direction: column; gap: 18px; text-align: left; }
.comparison__col--old .comparison__list li { color: rgba(255,255,255,0.88); font-size: 0.93rem; }
.comparison__col--new .comparison__list li { color: var(--accent-2); font-size: 0.93rem; }

/* ============================================================ WAVE DIVIDERS */
.wave-divider { line-height: 0; overflow: hidden; }
.wave-divider svg { display: block; width: 100%; }
.wave-divider--green { background: var(--bg); }
.wave-divider--light { background: var(--dark-2); }

/* ============================================================ PRODUCTS (dark — forest green) */
.products { background: var(--dark-2); padding: 88px 0; }
.products__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.product-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-lg); padding: 32px 26px; position: relative; transition: all var(--transition); color: var(--text-on-dark); }
.product-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: rgba(214,232,122,0.3); }
.product-card--featured { background: rgba(214,232,122,0.1); border-color: rgba(214,232,122,0.35); box-shadow: 0 0 40px rgba(214,232,122,0.15); }
.product-card--featured:hover { border-color: rgba(214,232,122,0.55); }
.product-card__badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--cta); color: #111; font-size: 0.73rem; font-weight: 700; padding: 5px 16px; border-radius: 50px; white-space: nowrap; }
.product-card__icon { font-size: 2rem; margin-bottom: 12px; color: var(--cta); }
.product-card__icon [data-lucide] { width: 36px; height: 36px; }
.product-card__tag { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--cta); opacity: 0.85; margin-bottom: 8px; }
.product-card__title { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; color: var(--text-on-dark); }
.product-card__desc { font-size: 0.88rem; color: rgba(255,255,255,0.65); line-height: 1.65; margin-bottom: 20px; }
.product-card__features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; }
.product-card__features li { font-size: 0.83rem; color: rgba(255,255,255,0.72); }
.product-card__btn { width: 100%; text-align: center; font-size: 0.88rem; }
.custom-solution { background: rgba(214,232,122,0.08); border: 2px dashed rgba(214,232,122,0.35); border-radius: var(--radius-lg); padding: 48px; display: flex; align-items: center; justify-content: space-between; gap: 32px; color: var(--text-on-dark); }
.custom-solution h3 { font-size: 1.45rem; font-weight: 700; margin-bottom: 8px; }
.custom-solution p { color: rgba(255,255,255,0.68); max-width: 480px; font-size: 0.95rem; }

/* ============================================================ METHODOLOGY (light) */
.methodology { padding: 88px 0; background: var(--surface); }
.methodology .section-subtitle { margin-bottom: 48px; }
.phases { display: flex; flex-direction: column; gap: 16px; max-width: 820px; margin: 0 auto; }
.phase { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); border-left: 4px solid var(--border); }
.phase:nth-child(1) { border-left-color: var(--orange); }
.phase:nth-child(2) { border-left-color: var(--yellow-d); }
.phase:nth-child(3) { border-left-color: var(--sage-d); }
.phase__header { display: flex; align-items: center; gap: 24px; padding: 26px 32px; cursor: pointer; transition: background var(--transition); user-select: none; }
.phase__header:hover { background: var(--surface-2); }
.phase:nth-child(1) .phase__number { color: rgba(204,92,62,0.2); }
.phase:nth-child(2) .phase__number { color: rgba(201,168,48,0.2); }
.phase:nth-child(3) .phase__number { color: rgba(123,170,116,0.25); }
.phase__number { font-size: 2.4rem; font-weight: 900; line-height: 1; min-width: 56px; }
.phase:nth-child(1) .phase__label { color: var(--orange); }
.phase:nth-child(2) .phase__label { color: var(--yellow-d); }
.phase:nth-child(3) .phase__label { color: var(--sage-d); }
.phase__label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 3px; }
.phase__title { font-size: 1.25rem; font-weight: 800; color: var(--text); }
.phase:nth-child(1) .phase__icon { color: var(--orange); }
.phase:nth-child(2) .phase__icon { color: var(--yellow-d); }
.phase:nth-child(3) .phase__icon { color: var(--sage-d); }
.phase__icon { margin-left: auto; font-size: 1.6rem; font-weight: 300; transition: transform var(--transition); line-height: 1; }
.phase.active .phase__icon { transform: rotate(45deg); }
.phase__body { max-height: 0; overflow: hidden; transition: max-height 0.45s ease; }
.phase.active .phase__body { max-height: 360px; }
.phase__body p { padding: 0 32px 16px; color: var(--muted); line-height: 1.75; font-size: 0.95rem; }
.phase__body ul { padding: 0 32px 28px; display: flex; flex-direction: column; gap: 10px; }
.phase__body ul li { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: var(--text); }
.phase:nth-child(1) .phase__body ul li::before { color: var(--orange); }
.phase:nth-child(2) .phase__body ul li::before { color: var(--yellow-d); }
.phase:nth-child(3) .phase__body ul li::before { color: var(--sage-d); }
.phase__body ul li::before { content: '→'; font-weight: 700; flex-shrink: 0; }

/* ============================================================ TESTIMONIALS (white) */
.testimonials { padding: 88px 0; background: var(--bg); text-align: center; }
.testimonials__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.testimonial-card { background: var(--surface); border: 1px solid var(--border); border-top: 4px solid var(--border); border-radius: var(--radius-lg); padding: 32px; text-align: left; transition: transform var(--transition), box-shadow var(--transition); }
.testimonial-card:nth-child(1) { border-top-color: var(--orange); }
.testimonial-card:nth-child(2) { border-top-color: var(--yellow-d); }
.testimonial-card:nth-child(3) { border-top-color: var(--sage-d); }
.testimonial-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--border-b); }
.testimonial-card:nth-child(1):hover { border-top-color: var(--orange); }
.testimonial-card:nth-child(2):hover { border-top-color: var(--yellow-d); }
.testimonial-card:nth-child(3):hover { border-top-color: var(--sage-d); }
.testimonial-card__stars { color: var(--yellow); font-size: 1rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-card__text { font-size: 0.93rem; color: var(--muted); line-height: 1.75; margin-bottom: 24px; font-style: italic; }
.testimonial-card__author { display: flex; align-items: center; gap: 14px; }
.testimonial-card__avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.83rem; flex-shrink: 0; }
.testimonial-card:nth-child(1) .testimonial-card__avatar { background: var(--orange); }
.testimonial-card:nth-child(2) .testimonial-card__avatar { background: var(--yellow-d); }
.testimonial-card:nth-child(3) .testimonial-card__avatar { background: var(--sage-d); }
.testimonial-card__name { font-weight: 700; font-size: 0.93rem; color: var(--text); }
.testimonial-card__role { font-size: 0.78rem; color: var(--dim); }

/* ============================================================ CONTACT (light) */
.contact { background: var(--surface); padding: 88px 0; }
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact .section-title { color: var(--text); }
.contact .section-subtitle { color: var(--muted); }
.contact__details { display: flex; flex-direction: column; gap: 16px; margin-top: 32px; }
.contact__detail { display: flex; align-items: center; gap: 14px; font-size: 0.93rem; color: var(--muted); }
.contact__detail [data-lucide] { width: 18px; height: 18px; flex-shrink: 0; color: var(--accent); }
.contact__detail:nth-child(1) [data-lucide] { color: var(--orange); }
.contact__detail:nth-child(2) [data-lucide] { color: var(--sage-d); }
.contact__detail:nth-child(3) [data-lucide] { color: var(--yellow-d); }
.contact__form-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-md); }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.83rem; font-weight: 600; color: var(--muted); }
.form-group input, .form-group select, .form-group textarea { padding: 12px 16px; border: 1.5px solid var(--border-b); border-radius: var(--radius); font-family: var(--font); font-size: 0.93rem; color: var(--text); transition: border-color var(--transition); background: var(--surface); width: 100%; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--orange); background: #fff; box-shadow: 0 0 0 3px var(--orange-pale); }
.form-group textarea { resize: vertical; }
.form-note { font-size: 0.78rem; color: var(--dim); text-align: center; }
.form-success { text-align: center; padding: 48px 20px; }
.form-success__icon { font-size: 3rem; margin-bottom: 16px; }
.form-success h3 { font-size: 1.5rem; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.form-success p { color: var(--muted); }

/* ============================================================ FOOTER (dark) */
.footer { background: var(--dark); color: rgba(255,255,255,0.55); padding: 64px 0 32px; border-top: none; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 2fr; gap: 48px; margin-bottom: 48px; }
.footer__logo { font-size: 1.08rem; font-weight: 800; color: var(--text-on-dark); display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.footer__logo [data-lucide] { width: 18px; height: 18px; color: var(--cta); }
.footer__tagline { font-size: 0.88rem; line-height: 1.65; margin-bottom: 20px; }
.footer__social { display: flex; gap: 12px; }
.footer__social a { width: 36px; height: 36px; background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; display: flex; align-items: center; justify-content: center; transition: all var(--transition); }
.footer__social a [data-lucide] { width: 16px; height: 16px; color: rgba(255,255,255,0.55); }
.footer__social a:hover { border-color: var(--cta); background: rgba(214,232,122,0.1); }
.footer__social a:hover [data-lucide] { color: var(--cta); }
.footer__links h4 { color: var(--text-on-dark); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px; }
.footer__links ul { display: flex; flex-direction: column; gap: 10px; }
.footer__links a { font-size: 0.88rem; transition: color var(--transition); }
.footer__links a:hover { color: var(--cta); }
.footer__newsletter h4 { color: var(--text-on-dark); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 12px; }
.footer__newsletter p { font-size: 0.85rem; line-height: 1.65; margin-bottom: 16px; }
.newsletter-form { display: flex; gap: 8px; }
.newsletter-form input { flex: 1; padding: 10px 14px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); border-radius: 50px; color: var(--text-on-dark); font-family: var(--font); font-size: 0.83rem; }
.newsletter-form input::placeholder { color: rgba(255,255,255,0.35); }
.newsletter-form input:focus { outline: none; border-color: var(--cta); }
.newsletter-form .btn { padding: 10px 18px; font-size: 0.83rem; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer__bottom p { font-size: 0.83rem; }
.footer__bottom-links { display: flex; gap: 24px; }
.footer__bottom-links a { font-size: 0.83rem; transition: color var(--transition); }
.footer__bottom-links a:hover { color: var(--cta); }

/* ============================================================ BACK TO TOP */
.back-to-top { position: fixed; bottom: 28px; right: 28px; width: 44px; height: 44px; background: var(--cta); color: #111; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 700; box-shadow: var(--shadow-md); opacity: 0; pointer-events: none; transition: all var(--transition); z-index: 50; }
.back-to-top.visible { opacity: 1; pointer-events: all; }
.back-to-top:hover { transform: translateY(-3px); filter: brightness(1.1); }

/* ============================================================ RESPONSIVE */
@media (max-width: 1024px) {
  .hero__title { font-size: 3.1rem; }
  .products__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .section-title { font-size: 1.9rem; }
  .nav__menu { display: none; }
  .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  .nav__menu.open { display: flex; flex-direction: column; position: fixed; top: 68px; left: 0; right: 0; background: #fff; padding: 20px 24px; box-shadow: var(--shadow-lg); gap: 4px; z-index: 99; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
  .nav__menu.open .nav__link { padding: 12px 16px; font-size: 1rem; border-radius: var(--radius); }
  .hero__inner { grid-template-columns: 1fr; text-align: center; padding: 60px 24px 80px; }
  .hero__title { font-size: 2.5rem; }
  .hero__visual { display: none; }
  .hero__ctas { justify-content: center; flex-wrap: wrap; }
  .hero__subtitle { margin: 0 auto 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .comparison__table { grid-template-columns: 1fr; }
  .products__grid { grid-template-columns: 1fr; }
  .contact__grid { grid-template-columns: 1fr; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .custom-solution { flex-direction: column; text-align: center; }
  .custom-solution p { max-width: 100%; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .newsletter-form { flex-direction: column; }
}
@media (max-width: 480px) {
  .hero__title { font-size: 2.1rem; }
  .hero__ctas { flex-direction: column; align-items: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .contact__form-wrap { padding: 24px 20px; }
  .phase__header { padding: 20px 24px; gap: 16px; }
  .phase__body p, .phase__body ul { padding-left: 24px; padding-right: 24px; }
}