/* ===================================================================
   RIVA MASAJ SPA - main.css
   SADECE: CSS Tokens, Topbar, Header/Navbar, Footer, Back-to-Top, Bottom Menu
   =================================================================== */

/* ===== CSS Custom Properties (Design Tokens) ===== */
:root {
  /* Colors */
  --clr-primary: #1a6b6a;
  --clr-primary-dark: #145453;
  --clr-primary-light: #238786;
  --clr-secondary: #c9a84c;
  --clr-secondary-dark: #a8893d;
  --clr-secondary-light: #d4b95f;
  --clr-accent: #6b7a3a;
  --clr-accent-light: #8a9e4e;
  --clr-text: #333333;
  --clr-text-light: #666666;
  --clr-text-muted: #999999;
  --clr-text-on-dark: #ffffff;
  --clr-text-on-primary: #ffffff;
  --clr-bg: #fdfbf7;
  --clr-bg-alt: #f5f0e8;
  --clr-bg-dark: #0f3d3c;
  --clr-border: #e0d8c8;
  --clr-border-light: #ede8de;
  --clr-white: #ffffff;
  --clr-black: #000000;
  --clr-overlay: rgba(20, 84, 83, 0.85);
  --clr-shadow: rgba(0, 0, 0, 0.1);

  /* Typography */
  --ff-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --ff-body: 'Open Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --fs-h1: clamp(1.75rem, 4vw, 3rem);
  --fs-h2: clamp(1.5rem, 3vw, 2.25rem);
  --fs-h3: clamp(1.25rem, 2.5vw, 1.75rem);
  --fs-h4: clamp(1.1rem, 2vw, 1.35rem);
  --fs-body: clamp(0.9rem, 1.5vw, 1rem);
  --fs-small: clamp(0.8rem, 1.2vw, 0.875rem);
  --fs-xs: 0.75rem;

  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-heading: 1.3;
  --lh-body: 1.7;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --section-py: clamp(3rem, 6vw, 5rem);

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.14);
  --shadow-xl: 0 12px 36px rgba(0, 0, 0, 0.18);

  /* Border Radius */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 50%;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Layout */
  --header-height: 70px;
  --topbar-height: 40px;
  --bottom-menu-height: 60px;
  --navbar-scroll-height: 60px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--topbar-height));
}

body {
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--clr-text);
  background-color: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-heading);
  font-weight: var(--fw-bold);
  line-height: var(--lh-heading);
  color: var(--clr-primary-dark);
}

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

a:hover {
  color: var(--clr-secondary);
}

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

/* ===== Skip Link (A11Y) ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 10000;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--clr-primary);
  color: var(--clr-white);
  font-weight: var(--fw-semibold);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  color: var(--clr-white);
}

/* ===================================================================
   TOPBAR
   =================================================================== */
.topbar {
  background-color: var(--clr-primary-dark);
  color: var(--clr-text-on-dark);
  font-size: var(--fs-xs);
  padding: var(--space-sm) 0;
  height: var(--topbar-height);
  display: flex;
  align-items: center;
}

.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.topbar__contact {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.topbar__contact a {
  color: var(--clr-text-on-dark);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--fs-xs);
  white-space: nowrap;
}

.topbar__contact a:hover {
  color: var(--clr-secondary);
}

.topbar__contact a i {
  font-size: 0.7rem;
  color: var(--clr-secondary);
}

.topbar__address-text {
  display: none;
}

.topbar__social {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.topbar__social a {
  color: var(--clr-text-on-dark);
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: var(--fs-xs);
  transition: all var(--transition-fast);
}

.topbar__social a:hover {
  background-color: var(--clr-secondary);
  border-color: var(--clr-secondary);
  color: var(--clr-white);
}

/* Topbar Responsive */
@media (min-width: 480px) {
  .topbar {
    font-size: var(--fs-small);
  }
  .topbar__contact a {
    font-size: var(--fs-small);
  }
}

@media (min-width: 768px) {
  .topbar__address-text {
    display: inline;
  }
}

@media (min-width: 1200px) {
  .topbar {
    font-size: var(--fs-small);
  }
}

/* ===================================================================
   HEADER / NAVBAR
   =================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: var(--clr-white);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.site-header .navbar {
  padding: var(--space-sm) 0;
  min-height: var(--header-height);
  transition: all var(--transition);
}

.site-header .navbar-brand img {
  height: 45px;
  width: auto;
  transition: height var(--transition);
}

/* Navbar toggler */
.site-header .navbar-toggler {
  border: 2px solid var(--clr-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

.site-header .navbar-toggler:focus {
  box-shadow: 0 0 0 3px rgba(26, 107, 106, 0.3);
}

.site-header .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231a6b6a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Nav links */
.site-header .navbar-nav {
  gap: 0;
}

.site-header .nav-link {
  color: var(--clr-text);
  font-weight: var(--fw-medium);
  font-size: var(--fs-body);
  padding: var(--space-sm) var(--space-md) !important;
  position: relative;
  transition: color var(--transition-fast);
}

.site-header .nav-link:hover,
.site-header .nav-link:focus,
.site-header .nav-link.active {
  color: var(--clr-primary);
}

/* Nav link underline animation - desktop only */
.site-header .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--clr-secondary);
  transition: all var(--transition);
  transform: translateX(-50%);
}

.site-header .nav-link:hover::after,
.site-header .nav-link.active::after {
  width: 60%;
}

/* Dropdown */
.site-header .dropdown-menu {
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: var(--space-sm) 0;
  min-width: 200px;
}

.site-header .dropdown-item {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--fs-body);
  color: var(--clr-text);
  transition: all var(--transition-fast);
}

.site-header .dropdown-item:hover,
.site-header .dropdown-item:focus {
  background-color: var(--clr-bg-alt);
  color: var(--clr-primary);
  padding-left: calc(var(--space-lg) + 4px);
}

/* Mobile nav collapse */
.site-header .navbar-collapse {
  background-color: var(--clr-white);
}

/* Scrolled state */
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.site-header.scrolled .navbar {
  min-height: var(--navbar-scroll-height);
  padding: var(--space-xs) 0;
}

.site-header.scrolled .navbar-brand img {
  height: 38px;
}

/* CTA Button in navbar */
.navbar__cta {
  display: none;
}

/* Header Responsive */
@media (min-width: 768px) {
  .site-header .navbar-brand img {
    height: 48px;
  }
}

@media (min-width: 1200px) {
  .site-header .navbar-nav {
    gap: var(--space-xs);
  }

  .site-header .nav-link {
    padding: var(--space-sm) var(--space-md) !important;
    font-size: var(--fs-small);
  }

  .navbar__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-left: var(--space-lg);
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--clr-secondary);
    color: var(--clr-white);
    border-radius: var(--radius);
    font-weight: var(--fw-semibold);
    font-size: var(--fs-small);
    white-space: nowrap;
    transition: all var(--transition-fast);
  }

  .navbar__cta:hover {
    background-color: var(--clr-secondary-dark);
    color: var(--clr-white);
    transform: translateY(-1px);
  }
}

/* ===================================================================
   FOOTER
   =================================================================== */
.site-footer {
  background-color: var(--clr-bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding-top: var(--space-3xl);
  padding-bottom: calc(var(--space-xl) + var(--bottom-menu-height));
  font-size: var(--fs-small);
}

.site-footer h3 {
  color: var(--clr-white);
  font-size: var(--fs-h4);
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-sm);
}

.site-footer h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--clr-secondary);
}

.site-footer p {
  margin-bottom: var(--space-sm);
  line-height: var(--lh-body);
}

.footer__logo {
  height: 40px;
  width: auto;
  margin-bottom: var(--space-md);
}

.footer__desc {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-lg) !important;
}

/* Footer nav links */
.site-footer nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer nav ul li {
  margin-bottom: var(--space-sm);
}

.site-footer nav ul li a {
  color: rgba(255, 255, 255, 0.7);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: all var(--transition-fast);
}

.site-footer nav ul li a::before {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: var(--fs-xs);
  color: var(--clr-secondary);
}

.site-footer nav ul li a:hover {
  color: var(--clr-secondary);
  padding-left: 4px;
}

/* Footer contact */
.footer__contact address {
  font-style: normal;
}

.footer__contact address p {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact address p i {
  color: var(--clr-secondary);
  margin-top: 4px;
  flex-shrink: 0;
}

.footer__contact address a {
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact address a:hover {
  color: var(--clr-secondary);
}

/* Footer social */
.footer__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.footer__social a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-body);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--clr-secondary);
  border-color: var(--clr-secondary);
  color: var(--clr-white);
  transform: translateY(-2px);
}

/* Footer bottom */
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  margin-top: var(--space-2xl);
}

.footer__bottom p {
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--fs-xs);
}

/* Footer Responsive */
.site-footer .row > [class*="col-"] {
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .site-footer .row > [class*="col-"] {
    margin-bottom: var(--space-xl);
  }
}

@media (min-width: 1200px) {
  .site-footer {
    padding-bottom: var(--space-xl);
  }

  .site-footer .row > [class*="col-"] {
    margin-bottom: 0;
  }
}

/* ===================================================================
   BACK TO TOP
   =================================================================== */
.back-to-top {
  position: fixed;
  bottom: calc(var(--bottom-menu-height) + var(--space-md));
  right: var(--space-md);
  z-index: 1020;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--clr-primary);
  color: var(--clr-white);
  border: none;
  border-radius: var(--radius-full);
  font-size: 1rem;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
}

.back-to-top:hover {
  background-color: var(--clr-primary-dark);
  transform: translateY(-2px);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--clr-secondary);
  outline-offset: 2px;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (min-width: 1200px) {
  .back-to-top {
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 48px;
    height: 48px;
  }
}

/* ===================================================================
   BOTTOM MENU (Mobile & Tablet) - Single CTA Call Bar
   =================================================================== */
.bottom-menu {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1040;
  height: var(--bottom-menu-height);
  display: flex;
  align-items: stretch;
  background-color: var(--clr-primary);
  box-shadow: 0 -2px 16px rgba(0, 0, 0, 0.15);
}

.bottom-menu__item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  color: var(--clr-white);
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  text-decoration: none;
  transition: all var(--transition-fast);
  padding: var(--space-sm) var(--space-md);
  border: none;
  background: none;
  letter-spacing: 0.03em;
}

.bottom-menu__item i {
  font-size: 1.3rem;
  transition: transform var(--transition-fast);
}

.bottom-menu__item span {
  font-size: 1rem;
  letter-spacing: 0.04em;
}

/* Call button */
.bottom-menu__item--call {
  color: var(--clr-white);
}

.bottom-menu__item--call:hover {
  color: var(--clr-white);
  background-color: var(--clr-primary-dark);
}

.bottom-menu__item:hover i {
  transform: scale(1.15);
}

.bottom-menu__item:focus-visible {
  outline: 2px solid var(--clr-secondary);
  outline-offset: -2px;
}

/* ===================================================================
   UTILITY CLASSES
   =================================================================== */
.section-padding {
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-title h2 {
  font-size: var(--fs-h2);
  color: var(--clr-primary-dark);
  margin-bottom: var(--space-sm);
}

.section-title p {
  color: var(--clr-text-light);
  max-width: 600px;
  margin: 0 auto;
  font-size: var(--fs-body);
}

.section-title__line {
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-secondary), var(--clr-primary));
  margin: var(--space-md) auto;
  border-radius: 2px;
}

/* Button styles */
.btn-primary-custom {
  background-color: var(--clr-primary);
  color: var(--clr-white);
  border: 2px solid var(--clr-primary);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-primary-custom:hover {
  background-color: var(--clr-primary-dark);
  border-color: var(--clr-primary-dark);
  color: var(--clr-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary-custom {
  background-color: var(--clr-secondary);
  color: var(--clr-white);
  border: 2px solid var(--clr-secondary);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-secondary-custom:hover {
  background-color: var(--clr-secondary-dark);
  border-color: var(--clr-secondary-dark);
  color: var(--clr-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline-custom {
  background-color: transparent;
  color: var(--clr-primary);
  border: 2px solid var(--clr-primary);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-outline-custom:hover {
  background-color: var(--clr-primary);
  color: var(--clr-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* WhatsApp button */
.btn-whatsapp {
  background-color: #25d366;
  color: var(--clr-white);
  border: 2px solid #25d366;
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-whatsapp:hover {
  background-color: #1da851;
  border-color: #1da851;
  color: var(--clr-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Focus visible for all interactive elements */
:focus-visible {
  outline: 3px solid var(--clr-secondary);
  outline-offset: 2px;
}