/* ==============================================================
   THEME.CSS — Bidszo Premium Auction Platform
   Contains ONLY: color variables, typography, gradients, radius,
   spacing system, shadow system, container sizes, transitions,
   animation variables, glass variables, theme + dark-mode
   variables, base resets and utility classes.
   ============================================================== */

:root {
  /* ---------- Color System ---------- */
  --color-bg: #FFFFFF;
  --color-bg-soft: #FAF9F6;
  --color-surface: #FFFFFF;

  /* Premium Gold — accents, borders, badges, highlights */
  --color-gold-50: #FCF6E9;
  --color-gold-100: #F5E6C4;
  --color-gold-300: #E4BE73;
  --color-gold: #C79A45;
  --color-gold-600: #AD8236;
  --color-gold-700: #8C6A2B;
  /* --gradient-gold:       linear-gradient(135deg, #E9C378 0%, #C79A45 55%, #9C7530 100%); */
  --gradient-gold: linear-gradient(135deg, #E9C158 0%, #D4A017 45%, #A9780C 100%);

  /* Premium Green — CTAs, success, primary actions */
  --color-green-50: #E8F7EF;
  --color-green-300: #4FBE86;
  --color-green: #0E8F53;
  --color-green-600: #0B7644;
  --color-green-700: #085C36;
  --gradient-green: linear-gradient(135deg, #14A863 0%, #0E8F53 55%, #085C36 100%);

  /* Professional Blue — secondary actions */
  --color-blue-50: #EAF1FC;
  --color-blue-300: #6E9DE8;
  --color-blue: #2454B8;
  --color-blue-600: #1E4497;
  --color-blue-700: #17356F;
  --gradient-blue: linear-gradient(135deg, #3E76E0 0%, #2454B8 55%, #17356F 100%);
  --shadow-blue-glow: 0 12px 30px rgba(36, 84, 184, 0.30);

  /* Text */
  --color-text: #14140F;
  --color-text-soft: #4A4A46;
  --color-text-muted: #85837B;
  --color-text-on-dark: #F6F4EE;
  --color-text-on-dark-soft: rgba(246, 244, 238, 0.68);

  /* Structure */
  --color-border: #E8E4D9;
  --color-border-soft: #F1EEE4;
  --color-ink: #0D0D0B;
  /* near-black panels/footer */
  --color-ink-soft: #17170F;

  /* ---------- Dark Mode Variables (optional theme switch) ---------- */
  --dark-bg: #0D0D0B;
  --dark-surface: #17170F;
  --dark-border: #2A2A22;
  --dark-text: #F6F4EE;
  --dark-text-soft: rgba(246, 244, 238, 0.7);

  /* ---------- Typography ---------- */
  --font-heading: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
  --font-body: 'Poppins', 'Segoe UI', sans-serif;

  --fs-h1: clamp(2.4rem, 1.6rem + 3.4vw, 4.2rem);
  --fs-h2: clamp(1.9rem, 1.5rem + 1.8vw, 2.75rem);
  --fs-h3: clamp(1.3rem, 1.1rem + 0.8vw, 1.6rem);
  --fs-h4: 1.15rem;
  --fs-lead: clamp(1rem, 0.94rem + 0.3vw, 1.15rem);
  --fs-body: 1rem;
  --fs-sm: 0.875rem;
  --fs-xs: 0.75rem;

  --lh-tight: 1.12;
  --lh-snug: 1.35;
  --lh-normal: 1.65;

  /* ---------- Spacing System (8px base) ---------- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5.5rem;
  --space-11: 7.5rem;

  /* ---------- Radius ---------- */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  /* ---------- Shadow System ---------- */
  --shadow-xs: 0 1px 2px rgba(20, 20, 15, 0.04);
  --shadow-sm: 0 4px 14px rgba(20, 20, 15, 0.06);
  --shadow-md: 0 10px 30px rgba(20, 20, 15, 0.08);
  --shadow-lg: 0 24px 60px rgba(20, 20, 15, 0.12);
  --shadow-gold-glow: 0 10px 34px rgba(199, 154, 69, 0.35);
  --shadow-green-glow: 0 12px 30px rgba(14, 143, 83, 0.30);
  --shadow-inner-line: inset 0 0 0 1px var(--color-border);

  /* ---------- Container Sizes ---------- */
  --container-max: 1320px;
  --container-narrow: 860px;

  /* ---------- Transitions ---------- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 180ms;
  --dur-base: 320ms;
  --dur-slow: 620ms;

  /* ---------- Glass Variables ---------- */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-dark: rgba(13, 13, 11, 0.62);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-blur: 18px;
}

/* ---------- Reset / Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* Kept on html (the true scroll root) rather than body — overflow-x on
     body turns it into its own scroll container, which breaks
     position:sticky descendants (the header) on mobile Safari. */
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-text);
  line-height: var(--lh-tight);
  font-weight: 700;
  margin: 0 0 var(--space-4);
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--fs-h1);
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.015em;
}

h3 {
  font-size: var(--fs-h3);
}

p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-soft);
}

a {
  text-decoration: none;
  color: inherit;
}

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

button {
  font-family: inherit;
}

::selection {
  background: var(--color-gold-100);
  color: var(--color-text);
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Layout Utilities ---------- */
.container-xl {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 1rem + 2vw, 2.5rem);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin-inline: auto;
}

.section {
  /* padding-block: var(--space-10); */
}

.section-tight {
  padding-block: var(--space-8);
}

/* ---------- Eyebrow / Section Heading ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  /* color: #deaf34; */
  color: #d5a118;
  /* color: var(--color-gold-700); */
  background: var(--color-gold-50);
  border: 1px solid var(--color-gold-100);
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-8);
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.section-head p {
  font-size: var(--fs-lead);
}

/* ---------- Buttons ---------- */
.btn {
  --btn-fg: var(--color-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: 0.01em;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px) scale(0.98);
}

.btn-primary {
  background: var(--gradient-green);
  color: #fff;
  box-shadow: var(--shadow-green-glow);
  border-color: var(--gradient-green) !important;
}

.btn-primary:hover {
  box-shadow: 0 16px 40px rgba(14, 143, 83, 0.42);
  transform: translateY(-2px);
}

.btn-gold {
  background: var(--gradient-gold);
  /* color: #221802; */
  color: #ffffff;
  box-shadow: var(--shadow-gold-glow);
}

.btn-gold:hover {
  box-shadow: 0 16px 40px rgba(199, 154, 69, 0.45);
  transform: translateY(-2px);
}

.btn-blue {
  /* background: var(--gradient-blue); */
  background: linear-gradient(180deg, #E7A61A 0%, #B97809 100%);
  color: #fff;
  box-shadow: var(--shadow-blue-glow);
}

.btn-blue:hover {
  box-shadow: 0 16px 40px rgba(36, 84, 184, 0.42);
  transform: translateY(-2px);
  color: #ffff;
}

.btn-outline {
  /* background: transparent; */
  background: linear-gradient(180deg, #E7A61A 0%, #B97809 100%);
  /* color: var(--color-text); */
  color: #ffff;
  border-color: linear-gradient(180deg, #E7A61A 0%, #B97809 100%);
}

.btn-outline:hover {
  border-color: linear-gradient(180deg, #E7A61A 0%, #B97809 100%);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: transparent;
  color: var(--color-text-on-dark);
  border-color: rgba(246, 244, 238, 0.3);
}

.btn-outline-light:hover {
  /* border-color: var(--color-text-on-dark); */
  border-color: #198754;
  /* background: rgba(246,244,238,0.06); */
  background: #198754;
}

.btn-ghost-gold {
  background: transparent;
  color: var(--color-gold-700);
  border-color: var(--color-gold-100);
}

.btn-ghost-gold:hover {
  background: var(--color-gold-50);
}

.btn-sm {
  padding: 0.6rem 1.15rem;
  font-size: var(--fs-xs);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
}

/* ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: rippleAnim 650ms var(--ease-out);
  background: rgba(255, 255, 255, 0.55);
  pointer-events: none;
}

@keyframes rippleAnim {
  to {
    transform: scale(2.6);
    opacity: 0;
  }
}

/* ---------- Cards / Glass ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gold-100);
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}

.glass-dark {
  background: var(--glass-bg-dark);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ---------- Badges ---------- */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-pill);
}

.badge-gold {
  background: var(--color-gold-50);
  /* color: var(--color-gold-700); */
  color: #d5a118;
  /* border: 1px solid var(--color-gold-100); */
}

.badge-green {
  background: var(--color-green-50);
  color: var(--color-green-700);
  border: 1px solid rgba(14, 143, 83, 0.18);
}

.badge-blue {
  background: var(--color-blue-50);
  color: var(--color-blue-700);
  border: 1px solid rgba(36, 84, 184, 0.18);
}

.badge-live {
  background: #C7213A;
  color: #fff;
}

.badge-live .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: pulseDot 1.4s infinite;
}

@keyframes pulseDot {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.35;
  }
}

/* ---------- Gradient text ---------- */
.text-gradient-gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.text-gradient-green {
  background: var(--gradient-green);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Text utilities ---------- */
.text-muted-c {
  color: var(--color-text-muted);
}

.text-soft-c {
  color: var(--color-text-soft);
}

.fw-700 {
  font-weight: 700;
}

/* ---------- Scroll reveal (JS toggles .in-view) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.reveal-scale.in-view {
  opacity: 1;
  transform: scale(1);
}

[data-reveal-delay="1"] {
  transition-delay: 90ms;
}

[data-reveal-delay="2"] {
  transition-delay: 180ms;
}

[data-reveal-delay="3"] {
  transition-delay: 270ms;
}

[data-reveal-delay="4"] {
  transition-delay: 360ms;
}

/* ---------- Divider ---------- */
.divider-soft {
  height: 1px;
  background: var(--color-border-soft);
  border: none;
  margin: 0;
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: 0.8rem 1.2rem;
  z-index: 2000;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Preloader ---------- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  transition: opacity 520ms var(--ease-out), visibility 520ms var(--ease-out);
}

#preloader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.preloader-ring {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 3px solid var(--color-gold-100);
  border-top-color: var(--color-gold);
  animation: spin 900ms linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.preloader-word {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

/* ---------- Scroll progress bar ---------- */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--gradient-gold);
  z-index: 2100;
  transition: width 90ms linear;
}

/* ---------- Back to top ---------- */
#back-to-top {
  position: fixed;
  right: var(--space-6);
  bottom: var(--space-6);
  z-index: 1200;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  /* background: var(--color-surface); */
  background: linear-gradient(180deg, #E7A61A 0%, #B97809 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--dur-base) var(--ease-out);
}

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

#back-to-top:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
}

/* ---------- Toasts ---------- */
#toast-stack {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  z-index: 2600;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: min(340px, 90vw);
}

.toast {
  background: var(--color-ink);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.05rem;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  font-size: var(--fs-sm);
  transform: translateX(20px);
  opacity: 0;
  animation: toastIn 380ms var(--ease-out) forwards;
  border-left: 3px solid var(--color-green);
}

.toast.toast-gold {
  border-left-color: var(--color-gold);
}

@keyframes toastIn {
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.toast-out {
  animation: toastOut 320ms var(--ease-out) forwards;
}

@keyframes toastOut {
  to {
    transform: translateX(20px);
    opacity: 0;
  }
}