/* ============================================================
   Dr. Andy Radtke — Urology Website
   Styles — Clean, clinical, professional
   ============================================================ */

/* ----- Custom Properties ----- */
:root {
  /* Colors */
  --navy:        #1b2a4a;
  --navy-light:  #2c4470;
  --navy-dark:   #0f1b33;
  --accent:      #2563eb;
  --accent-dark: #1d4ed8;
  --accent-light:#dbeafe;
  --teal:        #0d9488;
  --white:       #ffffff;
  --off-white:   #f8fafc;
  --gray-50:     #f9fafb;
  --gray-100:    #f3f4f6;
  --gray-200:    #e5e7eb;
  --gray-300:    #d1d5db;
  --gray-400:    #9ca3af;
  --gray-500:    #6b7280;
  --gray-600:    #4b5563;
  --gray-700:    #374151;
  --gray-800:    #1f2937;
  --gray-900:    #111827;
  --red:         #dc2626;

  /* Typography */
  --font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-base: 1rem;     /* 16px */
  --line-height:    1.7;

  /* Spacing */
  --section-pad-y: 5rem;
  --container-max:  1200px;
  --container-pad:  1.25rem;

  /* Misc */
  --radius:     0.5rem;
  --radius-lg:  1rem;
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow:     0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:  0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
  --transition: 0.25s ease;
  --header-h:   4.5rem;
}

/* ----- Reset & Base ----- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--gray-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--accent-dark);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
details summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  color: var(--navy);
  line-height: 1.25;
  font-weight: 700;
}

/* ----- Skip Link ----- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--navy);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  z-index: 1000;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

/* ----- Container ----- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 2rem;
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: var(--white);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  color: var(--white);
}

/* ----- Section Shared ----- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-500);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 900;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--navy);
  text-decoration: none;
}

.logo:hover {
  color: var(--navy);
}

.logo-icon {
  display: flex;
  color: var(--accent);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--navy);
}

.logo-title {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Nav */
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-600);
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--navy);
  background: var(--gray-100);
}

.nav-cta {
  background: var(--accent);
  color: var(--white) !important;
  margin-left: 0.5rem;
}

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

/* Mobile toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--white);
  padding: calc(var(--header-h) + 4rem) 0 6rem;
  overflow: hidden;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.hero-content {
  flex: 1 1 55%;
}

.hero-headline {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 900;
  margin-bottom: 1.25rem;
  color: var(--white);
}

.hero-headline .highlight {
  color: #93c5fd;
}

.hero-subheadline {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
  max-width: 540px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Headshot */
.hero-image {
  flex: 0 0 auto;
}

.hero-headshot {
  width: 300px;
  height: 360px;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-lg);
  border: 4px solid rgba(255,255,255,0.2);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
}

/* About Headshot */
.about-headshot {
  width: 100%;
  max-width: 380px;
  height: 420px;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  line-height: 0;
}

.hero-wave svg {
  width: 100%;
  height: 80px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  padding: var(--section-pad-y) 0;
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 3rem;
  align-items: start;
}

.about-name {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.about-credentials {
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 1.25rem;
}

.about-content p {
  margin-bottom: 1rem;
}

.credentials-list {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.credential {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
}

.credential-icon {
  display: flex;
  color: var(--teal);
  flex-shrink: 0;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  padding: var(--section-pad-y) 0;
  background: var(--off-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-icon {
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.service-description {
  flex: 1;
  margin-bottom: 1.25rem;
  color: var(--gray-600);
  font-size: 0.95rem;
}

.service-link {
  font-weight: 700;
  font-size: 0.9rem;
}

/* ============================================================
   WHY CHOOSE
   ============================================================ */
.why-choose {
  padding: var(--section-pad-y) 0;
  background: var(--white);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 2rem;
}

.why-card {
  text-align: center;
  padding: 2rem 1.5rem;
}

.why-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.why-title {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.why-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
}

/* ============================================================
   PATIENT RESOURCES
   ============================================================ */
.resources {
  padding: var(--section-pad-y) 0;
  background: var(--off-white);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.resource-block {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}

.resource-block--full {
  grid-column: 1 / -1;
}

.resource-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.resource-icon {
  display: flex;
  color: var(--accent);
  flex-shrink: 0;
}

.resource-list {
  padding-left: 1.25rem;
  list-style: disc;
}

.resource-list li {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--gray-600);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item[open] {
  border-color: var(--accent);
}

.faq-question {
  padding: 1rem 1.25rem;
  font-weight: 700;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] .faq-question::after {
  content: '\2212';
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-answer {
  padding: 0 1.25rem 1rem;
  color: var(--gray-600);
  font-size: 0.95rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding: var(--section-pad-y) 0;
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form-heading {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
}

/* Form */
.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--gray-700);
  margin-bottom: 0.35rem;
}

.required {
  color: var(--red);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--gray-800);
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--white);
}

input::placeholder,
textarea::placeholder {
  color: var(--gray-400);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
  outline: none;
}

input.invalid,
textarea.invalid,
select.invalid {
  border-color: var(--red);
}

.form-error {
  display: block;
  font-size: 0.8rem;
  color: var(--red);
  min-height: 1.2em;
  margin-top: 0.25rem;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  padding: 1rem;
  font-size: 1.05rem;
}

.form-success {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: #ecfdf5;
  border: 1px solid #6ee7b7;
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1.25rem;
  color: #065f46;
}

.form-success svg {
  flex-shrink: 0;
  color: #059669;
  margin-top: 2px;
}

/* Contact Info */
.info-card {
  background: var(--off-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.info-heading {
  font-size: 1.2rem;
  margin-bottom: 1.25rem;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

.info-item:last-child {
  margin-bottom: 0;
}

.info-icon {
  display: flex;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.map-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  height: 240px;
  border-radius: var(--radius-lg);
  border: 2px dashed var(--gray-300);
  color: var(--gray-400);
  font-size: 0.9rem;
  font-weight: 600;
  background: var(--gray-50);
}

.map-placeholder small {
  font-weight: 400;
  font-size: 0.8rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.7);
  padding: 3.5rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-text {
  margin-bottom: 1rem;
}

.footer-brand .logo-name {
  color: var(--white);
}

.footer-brand .logo-title {
  color: rgba(255,255,255,0.5);
}

.footer-tagline {
  font-size: 0.9rem;
  max-width: 280px;
  line-height: 1.6;
}

.footer-links h4 {
  color: var(--white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.footer-links ul li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255,255,255,0.65);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  padding: 2rem 0;
  text-align: center;
}

.footer-disclaimer {
  font-size: 0.8rem;
  max-width: 720px;
  margin: 0 auto 0.75rem;
  line-height: 1.5;
  color: rgba(255,255,255,0.45);
}

.footer-copyright {
  font-size: 0.85rem;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-photo {
    justify-self: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  :root {
    --section-pad-y: 3.5rem;
    --header-h: 4rem;
  }

  /* Mobile Nav */
  .mobile-menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s ease;
    z-index: 899;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }

  .nav-link {
    display: block;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    border-radius: var(--radius);
  }

  .nav-cta {
    text-align: center;
    margin-left: 0;
    margin-top: 0.5rem;
  }

  /* Mobile hamburger animation */
  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
  }

  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
  }

  /* Hero */
  .hero {
    padding: calc(var(--header-h) + 2.5rem) 0 5rem;
  }

  .hero-inner {
    flex-direction: column;
    text-align: center;
  }

  .hero-subheadline {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image {
    display: none;
  }

  /* Contact */
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Resources */
  .resources-grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-tagline {
    max-width: none;
  }
}

@media (max-width: 480px) {
  :root {
    --section-pad-y: 2.5rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

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

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
  }
}

/* ----- Reduced Motion ----- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ----- Print ----- */
@media print {
  .site-header,
  .hero-wave,
  .mobile-menu-toggle,
  .btn,
  .map-placeholder,
  .contact-form-wrapper {
    display: none !important;
  }

  body {
    color: #000;
    font-size: 12pt;
  }

  .hero {
    background: none;
    color: #000;
    padding: 1rem 0;
  }

  .hero-headline,
  .hero-headline .highlight {
    color: #000;
  }
}