@import url("https://fonts.googleapis.com/css2?family=Lexend:wght@100..900&family=Roboto+Flex:opsz,wght@8..144,100..1000&display=swap");

:root {
  /* Colour Palette */
  --primary-100: #FF5722;
  --primary-200: #ff8a50;
  --primary-300: #fff3b0;
  --accent-100: #2196F3;
  --accent-200: #003f8f;
  --text-100: #333333;
  --text-200: #5c5c5c;
  --bg-100: #F4F4F4;
  --bg-200: #eaeaea;
  --bg-300: #c1c1c1;

  /* Shadows */
  --float-shadow:
    rgba(50, 50, 93, 0.25) 0px 6px 12px -2px,
    rgba(0, 0, 0, 0.3) 0px 3px 7px -3px;
  --inset-shadow: rgba(0, 0, 0, 0.06) 0px 2px 4px 0px inset;

  /* Fonts */
  --font-primary: "Lexend", sans-serif;
  --font-secondary: "Roboto Flex", sans-serif;

  /* Layout Variables */
  --sidebar-width: 280px;
  --mobile-header-height: 72px;
}

/* --- Reset styles --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  text-decoration: none;
}

/* --- Global Styles --- */
body {
  font-family: var(--font-secondary);
  background-color: var(--bg-200);
  color: var(--text-100);
  margin: 0;
  padding: 0;
}
h1,
h2,
h3,
h4,
h5,
h6,
.navbar-brand {
  font-family: var(--font-primary);
  color: var(--text-200);
  font-weight: 600;
}

a {
  text-decoration: none !important;
}

/* --- Helper Classes --- */

/* Backgrounds */
.bg-brand-primary {
    background-color: var(--primary-100) !important;
}

.bg-brand-light {
    background-color: rgba(255, 87, 34, 0.1) !important;
}

/* Text */
.text-brand-primary {
    color: var(--primary-100) !important;
}

/* Buttons */
.btn-brand-primary {
    background-color: var(--primary-100) !important;
    border-color: var(--primary-100) !important;
    color: #ffffff !important;
    font-family: var(--font-primary);
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-brand-primary:hover {
    background-color: var(--primary-200) !important;
    border-color: var(--primary-200) !important;
    transform: translateY(-1px);
    box-shadow: var(--float-shadow);
}

.btn-outline-brand-primary {
    color: var(--primary-100) !important;
    border-color: var(--primary-100) !important;
    background-color: transparent;
}

.btn-outline-brand-primary:hover {
    background-color: var(--primary-100) !important;
    color: #ffffff !important;
}

/* Utilities */
.border-brand-primary {
    border-color: var(--primary-100) !important;
}

/* --- Mobile Header --- */
#mobile-header {
  height: var(--mobile-header-height);
  background-color: var(--primary-300);
  display: flex;
  align-items: center;
  padding: 0 1rem;
  color: var(--bg-100);
  box-shadow: var(--float-shadow);
  z-index: 1051;
}

#mobile-header .navbar-toggler {
  font-size: 1.5rem;
  color: var(--bg-100);
  border: none;
  padding-left: 0.5rem;
}

/* --- Sidebar Navigation --- */
.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1050;
  width: var(--sidebar-width);
  background-color: var(--primary-300);
  box-shadow: var(--float-shadow);
  transition: all 0.3s ease-in-out;
}
.sidebar-sticky {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.bg-primary.bg-gradient {
  background: linear-gradient(135deg, var(--primary-100), var(--primary-200)) !important;
}

.nav-link {
  color: var(--bg-100) !important;
  padding: 1rem 1.5rem;
  font-family: var(--font-primary);
  transition: all 0.2s ease;
}

.nav-link:hover {
  background-color: var(--primary-100);
  color: var(--text-200) !important;
}

.nav-link.active {
  border-left: 4px solid var(--primary-100);
  background-color: rgba(255, 255, 255, 0.05);
}

.nav-link.text-muted {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* --- Main Content --- */
main {
  padding: 2rem;
  transition: margin-left 0.3s ease-in-out;
  width: stretch !important;
}

/* --- Components --- */
.card {
  background-color: var(--bg-100);
  border: none;
  box-shadow: var(--float-shadow);
  border-radius: 12px;
}

.btn-primary {
  background-color: var(--accent-200);
  border: none;
  font-family: var(--font-primary);
  padding: 0.6rem 1.5rem;
  box-shadow: var(--float-shadow);
}

.btn-primary:hover {
  background-color: var(--accent-100);
  color: var(--text-200);
}

.alert {
  box-shadow: var(--float-shadow);
  border-radius: 8px;
  font-family: var(--font-primary);
}

/* --- Allauth Styling --- */
.auth-wrapper {
  min-height: 100vh;
  background-color: var(--bg-100);
}

.auth-form-column {
  background-color: var(--bg-100);
  padding: 2rem;
  box-shadow: 10px 0 30px rgba(0, 0, 0, 0.05);
  z-index: 2;
}

.auth-form-column .card {
  background-color: #ffffff;
  box-shadow: var(--float-shadow) !important;
}

.auth-brand {
  font-family: var(--font-primary);
  color: var(--primary-100);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.bg-auth {
  background-color: var(--bg-100);
  overflow-x: hidden;
}

.auth-form-column h1.display-5 {
  line-height: 1.1;
  letter-spacing: -2px;
  color: var(--text-200);
}

form.login input,
form.signup input,
form.password_change input,
form.password_set input {
  display: block;
  width: 100%;
  padding: 0.8rem 1.2rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-100);
  background-color: var(--bg-200);
  border: 2px solid transparent;
  border-radius: 10px;
  transition: all 0.2s ease-in-out;
}
form.login input:focus,
form.signup input:focus,
form.password_change input:focus,
form.password_set input:focus {
  background-color: #ffffff;
  border-color: var(--primary-100);
  outline: 0;
  box-shadow: 0 0 0 4px rgba(235, 156, 100, 0.15);
}
/* Checkbox styling (for "Remember Me") */
form.login input[type="checkbox"] {
  width: auto;
  display: inline-block;
  margin-right: 10px;
}
/* Label styling */
form.login label,
form.signup label,
form.password_change label,
form.password_set label {
  font-family: var(--font-primary);
  font-weight: 600;
  color: var(--text-100);
  margin-bottom: 0.5rem;
}
/* Info Column styling */
.auth-info-column {
  background:
    linear-gradient(rgba(33, 37, 41, 0.85), rgba(33, 37, 41, 0.95)),
    url("https://images.unsplash.com/photo-1517836357463-d25dfeac3438?auto=format&fit=crop&q=80&w=2070");
  background-size: cover;
  background-position: center;
}

.auth-info-column p.opacity-75 {
  opacity: 1 !important;
  color: #ffffff !important;
}

.auth-info-column h2.display-1 {
  text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.auth-info-column .backdrop-blur h5 {
  color: #ffffff !important;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.backdrop-blur {
  background: rgba(0, 0, 0, 0.3) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-info-column .backdrop-blur i {
  color: var(--primary-100) !important;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 10px rgba(255, 87, 34, 0.4));
}

/* --- Toast styling --- */
.toast.bg-success {
  background-color: var(--accent-200) !important;
}
.toast.bg-info {
  background-color: var(--primary-100) !important;
}
.toast.bg-error,
.toast.bg-danger {
  background-color: var(--primary-200) !important;
}
.toast-body {
  font-family: var(--font-primary);
  font-weight: 500;
}

/* --- Search Group --- */
.search-group .input-group-text {
    border-top-left-radius: 50rem !important;
    border-bottom-left-radius: 50rem !important;
}

.search-group .form-control {
    border-top-right-radius: 50rem !important;
    border-bottom-right-radius: 50rem !important;
}

.search-group .form-control:focus {
    outline: none;
}


/* --- Exercise Cards --- */
.exercise-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.exercise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--float-shadow) !important;
}

.exercise-card img {
    height: 200px;
    object-fit: contain;
    background-color: white;
}

.extra-small {
    font-size: 0.75rem;
}

/* Custom Nav Pills */
.nav-pills .nav-link {
    color: var(--text-200) !important;
    background-color: transparent;
    transition: all 0.2s ease-in-out;
}

.nav-pills .nav-link:hover {
    color: var(--primary-100) !important;
    background-color: var(--bg-200);
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
    color: #ffffff !important;
    background-color: var(--primary-100) !important;
    box-shadow: var(--float-shadow);
}

/* List Group Item Styling */
.card .list-group-item {
    background-color: transparent !important;
    color: var(--text-100);
}

/* --- Media queries --- */
@media screen and (min-width: 768px) {
  main {
    margin-left: var(--sidebar-width);
    margin-right: auto;
  }
}

@media screen and (max-width: 767.98px) {
  .sidebar {
    top: var(--mobile-header-height) !important;
    width: calc(var(--sidebar-width) - 50px) !important;
  }
}