/* =============================================
   FENSTERSERVICE MENZEL — styles.css
   Premium Handwerk Aesthetic
   ============================================= */

/* ===== CSS VARIABLES ===== */
:root {
  --bg: #ffffff;
  --bg-alt: #f7f7f5;
  --bg-card: #ffffff;
  --text: #4963b8;
  --text-body: #5a6a8a;
  --heading: #292e42;
  --heading-em: #3a5cbf;
  --border: #e4e8f0;
  --border-card: #dce2ef;
  --accent: #4963b8;
  --accent-dark: #3350a0;
  --accent-light: #eef1fb;
  --gold: #c8a96e;
  --shadow-sm: 0 2px 12px rgba(41, 46, 66, 0.07);
  --shadow-md: 0 8px 32px rgba(41, 46, 66, 0.10);
  --shadow-lg: 0 20px 60px rgba(41, 46, 66, 0.13);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --nav-h: 72px;
  --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #13151f;
  --bg-alt: #1a1d2b;
  --bg-card: #1e2132;
  --text: #8fa8e8;
  --text-body: #8892a8;
  --heading: #e8ecf8;
  --heading-em: #a0b4f0;
  --border: #2a2f42;
  --border-card: #252a3d;
  --accent: #5b74d4;
  --accent-dark: #4963b8;
  --accent-light: #1d2338;
  --gold: #d4b87a;
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.25);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.45);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.65;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'DM Serif Display', Georgia, serif;
  color: var(--heading);
  line-height: 1.18;
  font-weight: 400;
}

h2 { font-size: clamp(2rem, 4vw, 2.9rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.35rem); }

p { color: var(--text-body); }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

img {
  max-width: 100%;
  display: block;
}

ul { list-style: none; }

/* ===== LAYOUT ===== */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-alt);
}

/* ===== SECTION HEADER ===== */
.section-label {
  display: inline-block;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-sub {
  margin-top: 14px;
  font-size: 1.05rem;
  color: var(--text-body);
}

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}

#navbar.scrolled {
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-family: 'DM Serif Display', serif;
  font-size: 1rem;
  font-weight: 400;
  flex-shrink: 0;
}

.logo-text {
  font-size: 0.95rem;
  color: var(--heading);
  font-weight: 400;
  line-height: 1.2;
}

.logo-text strong {
  font-weight: 600;
  display: block;
  font-family: 'DM Sans', sans-serif;
}

#navbar:not(.scrolled) .logo-text {
  color: rgba(255,255,255,0.92);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-body);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover {
  color: var(--accent);
  background: var(--accent-light);
}

#navbar:not(.scrolled) .nav-links a {
  color: rgba(255,255,255,0.82);
}

#navbar:not(.scrolled) .nav-links a:hover {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

.nav-cta {
  background: var(--accent) !important;
  color: #fff !important;
  border-radius: var(--radius-sm) !important;
  padding: 8px 20px !important;
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--accent-dark) !important;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 8px;
}

.theme-btn {
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: grid;
  place-items: center;
  color: var(--text-body);
  font-size: 0.9rem;
  transition: all var(--transition);
}

.theme-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

#navbar:not(.scrolled) .theme-btn {
  border-color: rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.8);
}

.burger {
  display: none;
  width: 38px;
  height: 38px;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 9px;
  transition: all var(--transition);
}

.burger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--heading);
  border-radius: 2px;
  transition: all var(--transition);
}

#navbar:not(.scrolled) .burger span {
  background: rgba(255,255,255,0.9);
}

#navbar:not(.scrolled) .burger {
  border-color: rgba(255,255,255,0.3);
}

.burger.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.burger.active span:nth-child(2) {
  opacity: 0;
}
.burger.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ===== HERO ===== */
#hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(19, 23, 38, 0.82) 0%,
    rgba(41, 46, 66, 0.55) 60%,
    rgba(73, 99, 184, 0.3) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1160px;
  margin: 0 auto;
  padding: calc(var(--nav-h) + 32px) 24px 80px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease both;
}

.hero-headline {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  color: #ffffff;
  line-height: 1.08;
  max-width: 720px;
  margin-bottom: 24px;
  animation: fadeInUp 0.7s ease 0.1s both;
}

.hero-headline em {
  font-style: italic;
  color: #a8bfff;
}

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.78);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.6;
  animation: fadeInUp 0.7s ease 0.2s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.7s ease 0.3s both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
  line-height: 1;
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(73, 99, 184, 0.4);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.25);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  font-family: 'DM Sans', sans-serif;
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.18);
  color: #fff;
  transform: translateY(-2px);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce 2s ease infinite 1s;
  z-index: 2;
}

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.service-icon-wrap {
  width: 52px;
  height: 52px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  color: var(--accent);
  margin-bottom: 20px;
  transition: background var(--transition), color var(--transition);
}

.service-card:hover .service-icon-wrap {
  background: var(--accent);
  color: #fff;
}

.service-card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
}

.service-card p {
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 20px;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.service-list li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.87rem;
  color: var(--text-body);
}

.service-list li i {
  color: var(--accent);
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* ===== WHY GRID ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.why-number {
  position: absolute;
  top: 18px;
  right: 22px;
  font-family: 'DM Serif Display', serif;
  font-size: 3.5rem;
  color: var(--border);
  line-height: 1;
  transition: color var(--transition);
}

.why-card:hover .why-number {
  color: var(--accent-light);
}

.why-icon {
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: 20px;
  display: block;
}

.why-card h3 {
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== ABOUT ===== */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img-stack {
  position: relative;
}

.about-img-main {
  width: 100%;
  border-radius: var(--radius-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
}

.about-img-accent {
  position: absolute;
  bottom: -28px;
  right: -28px;
  width: 200px;
  height: 160px;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 5px solid var(--bg);
  box-shadow: var(--shadow-md);
}

.about-stat-chip {
  position: absolute;
  top: 20px;
  left: -16px;
  background: var(--accent);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
}

.about-content {
  padding-bottom: 28px;
}

.about-content h2 {
  margin: 8px 0 22px;
}

.about-lead {
  font-size: 1.1rem;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.about-content p {
  margin-bottom: 14px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.about-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--border);
}

/* ===== PROCESS ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.step-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2.5px solid var(--accent);
  display: grid;
  place-items: center;
  font-family: 'DM Serif Display', serif;
  font-size: 1.4rem;
  color: var(--accent);
  z-index: 1;
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
  margin-bottom: 28px;
}

.step-circle.last {
  background: var(--accent);
  color: #fff;
}

.step-line {
  position: absolute;
  top: 29px;
  left: 50%;
  right: -50%;
  height: 2px;
  background: linear-gradient(to right, var(--accent) 0%, var(--border) 100%);
  z-index: 0;
}

.process-step:last-child .step-line {
  display: none;
}

.step-content {
  text-align: center;
  padding: 0 16px;
}

.step-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 12px;
  display: block;
}

.step-content h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.step-content p {
  font-size: 0.88rem;
  line-height: 1.6;
}

/* ===== CONTACT ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 72px;
  align-items: start;
}

.contact-info h2 {
  margin: 8px 0 16px;
}

.contact-info > p {
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
  cursor: default;
}

a.contact-item {
  cursor: pointer;
}

a.contact-item:hover {
  border-color: var(--accent);
  background: var(--accent-light);
  transform: translateX(4px);
}

.contact-icon-wrap {
  width: 40px;
  height: 40px;
  background: var(--accent-light);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.contact-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-body);
  margin-bottom: 2px;
}

.contact-value {
  display: block;
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--heading);
}

/* ===== FORM ===== */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--heading);
}

.form-group input,
.form-group textarea {
  background: var(--bg-alt);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--heading);
  resize: vertical;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: var(--bg);
  box-shadow: 0 0 0 3px rgba(73, 99, 184, 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-body);
  opacity: 0.5;
}

.form-submit {
  border: none;
  width: 100%;
  justify-content: center;
  font-size: 1rem;
  padding: 15px 32px;
}

.form-success {
  display: none;
  align-items: center;
  gap: 10px;
  background: #edfaf3;
  border: 1px solid #a3e8c4;
  color: #1a7a4a;
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.9rem;
  font-weight: 500;
}

[data-theme="dark"] .form-success {
  background: #152b1f;
  border-color: #2a6a45;
  color: #6dd99f;
}

.form-success.show {
  display: flex;
}

/* ===== FOOTER ===== */
#footer {
  background: var(--heading);
  color: rgba(255,255,255,0.6);
  padding-top: 64px;
}

[data-theme="dark"] #footer {
  background: #0e0f17;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
}

.footer-brand .logo-text {
  color: rgba(255,255,255,0.9);
}

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-nav,
.footer-legal {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav-title {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(255,255,255,0.4);
  margin-bottom: 6px;
}

.footer-nav a,
.footer-legal a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  transition: color var(--transition);
  text-decoration: none;
}

.footer-nav a:hover,
.footer-legal a:hover {
  color: #fff;
}

.footer-bottom {
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  color: rgba(255,255,255,0.35);
  font-size: 0.82rem;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-in {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-img-accent {
    right: -12px;
    bottom: -18px;
    width: 160px;
    height: 128px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .process-steps {
    grid-template-columns: 1fr 1fr;
    gap: 48px 24px;
  }

  .step-line {
    display: none;
  }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .section { padding: 72px 0; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-links a {
    display: block;
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    color: var(--heading) !important;
  }

  .nav-cta {
    text-align: center;
  }

  .burger { display: flex; }

  .hero-headline { font-size: clamp(2rem, 8vw, 3rem); }

  .services-grid { grid-template-columns: 1fr; }

  .why-grid { grid-template-columns: 1fr 1fr; }

  .process-steps { grid-template-columns: 1fr 1fr; }

  .footer-inner { grid-template-columns: 1fr 1fr; }

  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .why-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .contact-form { padding: 24px 20px; }
}