/* ============================================================
   VENTURES HARBOR — DESIGN SYSTEM / MAIN CSS
   Global variables, reset, typography, layout, utilities
   ============================================================ */

/* ---------- GOOGLE FONTS ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

/* ---------- CSS CUSTOM PROPERTIES ---------- */
:root {
  /* Brand Colors */
  --navy-950: #3983F6;
  --navy-900: #3983F6;
  --navy-800: #3983F6;
  --navy-700: #3983F6;
  --navy-600: #3983F6;
  --navy-500: #3983F6;
  --blue-600: #3983F6;
  --blue-500: #3983F6;
  --blue-400: #3983F6;
  --blue-300: #3983F6;
  --gold-600: #b45309;
  --gold-500: #d97706;
  --gold-400: #f0c040;
  --gold-300: #fcd34d;

  /* Semantic Colors */
  --success-bg:   #dcfce7;
  --success-text: #16a34a;
  --success-dark: #166534;
  --warning-bg:   #fef9c3;
  --warning-text: #ca8a04;
  --danger-bg:    #fee2e2;
  --danger-text:  #dc2626;
  --info-bg:      #dbeafe;
  --info-text:    #3983F6;
  --purple-bg:    #ede9fe;
  --purple-text:  #7c3aed;
  --orange-bg:    #fff7ed;
  --orange-text:  #f97316;

  /* Neutrals */
  --white:      #ffffff;
  --gray-50:    #f8fafc;
  --gray-100:   #f1f5f9;
  --gray-200:   #e2e8f0;
  --gray-300:   #cbd5e1;
  --gray-400:   #94a3b8;
  --gray-500:   #64748b;
  --gray-600:   #475569;
  --gray-700:   #334155;
  --gray-800:   #1e293b;
  --gray-900:   #0f172a;

  /* Typography */
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing Scale */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs:  0 1px 2px rgba(0,0,0,0.05);
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.07);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl:  0 16px 48px rgba(0,0,0,0.16);
  --shadow-2xl: 0 24px 64px rgba(0,0,0,0.20);
  --shadow-inner: inset 0 2px 4px rgba(0,0,0,0.06);
  --shadow-navy: 0 8px 24px rgba(26,58,107,0.25);
  --shadow-navy-lg: 0 16px 48px rgba(26,58,107,0.35);

  /* Transitions */
  --transition-fast:   all 0.15s ease;
  --transition:        all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --navbar-height:  68px;
  --sidebar-width:  260px;
  --content-max:    1280px;
  --content-pad:    2rem;

  /* Z-index scale */
  --z-dropdown: 100;
  --z-sticky:   200;
  --z-navbar:   500;
  --z-sidebar:  600;
  --z-modal:    1000;
  --z-toast:    2000;
  --z-tooltip:  3000;
}

/* ---------- RESET ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
body {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--gray-800);
  background: var(--gray-50);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }
button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}
button { cursor: pointer; border: none; background: none; }
input, textarea, select { outline: none; }
h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); line-height: 1.2; }

/* ---------- SCROLLBAR ---------- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--navy-700); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--navy-600); }

/* ---------- SELECTION ---------- */
::selection { background: rgba(57, 131, 246,0.15); color: var(--navy-700); }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--content-pad);
}
.container--sm  { max-width: 720px;  margin: 0 auto; padding: 0 var(--content-pad); }
.container--md  { max-width: 960px;  margin: 0 auto; padding: 0 var(--content-pad); }
.container--lg  { max-width: 1440px; margin: 0 auto; padding: 0 var(--content-pad); }

/* Page wrapper for sidebar layouts */
.page-wrapper {
  display: flex;
  min-height: 100vh;
}
.page-content {
  /* padding: 0 1.5rem !important; */
  flex: 1;
  /* margin-left: var(--sidebar-width); */
  min-height: 100vh;
  background: var(--gray-50);
  padding: calc(var(--navbar-height) + 2rem) 2rem 2rem;
  transition: margin-left 0.3s ease;
}
.page-content--full {
  margin-left: 0;
  padding-top: calc(var(--navbar-height) + 2rem);
}
.join-layout{
  margin: 80px 0 !important;
}
.browse-hero, .vd-hero, .cv-layout{
  margin: 70px 0 !important;
}
/* Grid utilities */
.grid      { display: grid; }
.flex      { display: flex; }
.flex-col  { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem;  }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem;    }
.gap-6 { gap: 1.5rem;  }
.gap-8 { gap: 2rem;    }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 900; letter-spacing: -0.03em; }
.h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; letter-spacing: -0.02em; }
.h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 700; }
.h4 { font-size: 1.1rem; font-weight: 700; }
.h5 { font-size: 0.95rem; font-weight: 600; }
.h6 { font-size: 0.82rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }
.text-sm   { font-size: 0.8125rem; }
.text-xs   { font-size: 0.7rem; }
.text-muted { color: var(--gray-500); }
.text-gold  { color: var(--gold-400); }
.text-navy  { color: var(--navy-700); }
.text-white { color: var(--white); }
.font-bold  { font-weight: 700; }
.font-semibold { font-weight: 600; }
.text-center { text-align: center; }
.leading-tight { line-height: 1.2; }

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--navy-700), var(--blue-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.gradient-text--gold {
  background: linear-gradient(135deg, var(--gold-400), var(--gold-300));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   ANIMATIONS & KEYFRAMES
   ============================================================ */
@keyframes fadeIn        { from { opacity: 0; }                                          to { opacity: 1; } }
@keyframes fadeInUp      { from { opacity: 0; transform: translateY(24px); }             to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown    { from { opacity: 0; transform: translateY(-24px); }            to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft    { from { opacity: 0; transform: translateX(-24px); }            to { opacity: 1; transform: translateX(0); } }
@keyframes fadeInRight   { from { opacity: 0; transform: translateX(24px); }             to { opacity: 1; transform: translateX(0); } }
@keyframes scaleIn       { from { opacity: 0; transform: scale(0.92); }                  to { opacity: 1; transform: scale(1); } }
@keyframes slideInLeft   { from { transform: translateX(-100%); }                        to { transform: translateX(0); } }
@keyframes slideInRight  { from { transform: translateX(100%); }                         to { transform: translateX(0); } }
@keyframes shimmer       { 0%,100% { opacity: 0.4; } 50% { opacity: 1; } }
@keyframes pulse         { 0%,100% { transform: scale(1); } 50% { transform: scale(1.04); } }
@keyframes spin          { to { transform: rotate(360deg); } }
@keyframes progressFill  { from { width: 0%; } }
@keyframes float         {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-8px); }
}
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(240,192,64,0.5); }
  100% { box-shadow: 0 0 0 12px rgba(240,192,64,0); }
}

/* Animation helpers */
.animate-fade-in    { animation: fadeIn      0.5s ease both; }
.animate-fade-in-up { animation: fadeInUp    0.6s ease both; }
.animate-scale-in   { animation: scaleIn     0.4s cubic-bezier(0.34,1.56,0.64,1) both; }
.animate-float      { animation: float       3s ease infinite; }
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

/* Intersection observer helper class */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left  { opacity: 0; transform: translateX(-24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal-right { opacity: 0; transform: translateX(24px);  transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal-left.visible, .reveal-right.visible { opacity: 1; transform: translate(0); }

/* ============================================================
   LOADING / SKELETON
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Page loading overlay */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--navy-900);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s ease;
}
.page-loader.hidden { opacity: 0; pointer-events: none; }
.loader-logo { font-family: var(--font-heading); font-size: 1.6rem; font-weight: 900; color: var(--white); margin-bottom: 1.5rem; }
.loader-logo span { color: var(--gold-400); }
.loader-bar {
  width: 200px; height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}
.loader-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--navy-500), var(--gold-400));
  border-radius: 2px;
  animation: loader-progress 1.2s ease forwards;
}
@keyframes loader-progress {
  from { width: 0%; }
  to   { width: 100%; }
}

/* ============================================================
   RESPONSIVE BREAKPOINTS (Mobile First)
   ============================================================ */
/* sm: 640px | md: 768px | lg: 1024px | xl: 1280px | 2xl: 1536px */

@media (max-width: 1024px) {
  :root { --sidebar-width: 220px; }
  .page-content { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (max-width: 768px) {
  :root { --content-pad: 1.25rem; }
  .page-content { margin-left: 0; padding-top: calc(var(--navbar-height) + 1.5rem); }
}
@media (max-width: 480px) {
  :root { --content-pad: 1rem; }
  body { font-size: 0.875rem; }
}

.hidden { display: none !important; }