html {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

*,
*::before,
*::after {
  -webkit-box-sizing: inherit;
  -moz-box-sizing: inherit;
  box-sizing: inherit;
}

:root {
  --background: #f4f4f5;
  --card-background: #ffffff;
  --text: #18181b;
  --border: #e4e4e7;
  --stroke: #d4d4d8;
  --blue-light: #3b82f6;
  --blue-transparent: #3b82f633;
  --blue-dark: #2563eb;
  --button-outline: #a1a1aa;
  --button-bg: #3b82f6;
  --button-text: #ffffff;
  --red: #ef4444;
  --yellow: #eab308;
  --yellow-light: #fef08a;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

[data-theme="dark"] {
  --background: #09090b;
  --card-background: #18181b;
  --text: #f4f4f5;
  --border: #27272a;
  --stroke: #3f3f46;
  --blue-light: #3b82f6;
  --blue-transparent: #3b82f633;
  --blue-dark: #60a5fa;
  --button-outline: #71717a;
  --button-bg: #3b82f6;
  --button-text: #ffffff;
  --red: #f87171;
  --yellow: #facc15;
  --yellow-light: #854d0e;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.5);
}

body {
  background: var(--background);
  font-family:
    'Inter',
    Segoe UI,
    Ubuntu,
    sans-serif;
  color: var(--text);
  transition: background 0.3s ease, color 0.3s ease;
  margin: 0;
  padding: 0;
}

/* Removed generic .github class as we moved it to the footer */

.github span {
  margin: 0 2px;
}

.container {
  margin: auto;
  max-width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.properties,
.output {
  flex: 1 1 450px;
  /* Responsive: shrinks/grows naturally */
  min-width: 280px;
  max-width: 600px;
  margin: 15px;
  background: var(--card-background);
  padding: 30px;
  padding-top: 10px;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  transition: box-shadow 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

@media only screen and (max-width: 900px) {

  .properties,
  .output {
    flex: 1 1 100%;
    max-width: 100%;
    margin: 10px 0;
  }

  .container {
    padding: 0 10px;
  }
}

h1 {
  text-align: center;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 2.5em;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--blue-light), #8b5cf6);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1em;
}

h2 {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  border-bottom: 2px solid var(--stroke);
  padding-bottom: 8px;
  margin-top: 1.5em;
  color: var(--text);
}

:not(.btn):focus {
  outline: none;
}

.btn {
  max-width: 100%;
  background-color: var(--blue-light);
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-family: 'Inter', inherit;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Button Extensions */
.btn-large {
  padding: 16px 32px;
  font-size: 1.1em;
  border-radius: 12px;
}

/* --------------- NEW LANDING PAGE STYLES --------------- */

/* HERO SECTION */
.hero {
  position: relative;
  overflow: hidden;
  padding: 160px 20px 100px 20px;
  text-align: center;
  background: var(--background);
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  animation: fade-in-up 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.hero h1 {
  font-size: clamp(3em, 6vw, 5.5em);
  line-height: 1.1;
  margin-bottom: 0.4em;
  background: linear-gradient(135deg, var(--blue-dark), #7c3aed, var(--blue-dark));
  background-size: 200% auto;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 4s linear infinite;
}

.hero .subtitle {
  font-size: clamp(1.2em, 2vw, 1.4em);
  color: #52525b;
  margin-bottom: 2em;
  line-height: 1.6;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

[data-theme="dark"] .hero .subtitle {
  color: #a1a1aa;
}

/* Optional background shape effect */
.hero-bg-shape {
  position: absolute;
  top: -60%;
  left: 50%;
  width: 120vw;
  height: 120vw;
  max-width: 1400px;
  max-height: 1400px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--blue-transparent) 0%, transparent 50%);
  z-index: 0;
  pointer-events: none;
}


/* FEATURES SECTION */
.features {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--card-background);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-light);
}

.feature-icon {
  font-size: 2.5em;
  margin-bottom: 15px;
}

.feature-card h3 {
  font-family: 'Outfit', sans-serif;
  margin-top: 0;
  font-size: 1.3em;
  color: var(--text);
}

.feature-card p {
  color: var(--button-outline);
  /* Using button-outline as a muted text color */
  line-height: 1.6;
  font-size: 0.95em;
  margin-bottom: 0;
}

/* GENERATOR SECTION */
.generator-section {
  padding: 60px 20px 100px 20px;
  background: rgba(0, 0, 0, 0.02);
  border-top: 1px solid var(--border);
}

[data-theme="dark"] .generator-section {
  background: rgba(255, 255, 255, 0.02);
}

/* FAQ SECTION */
.faq-section {
  padding: 80px 20px;
  max-width: 900px;
  margin: 0 auto;
}

.faq-section h2 {
  text-align: center;
  font-size: 2em;
  font-weight: 700;
  margin-bottom: 40px;
  color: var(--text);
}

.faq-section h2 i {
  color: var(--blue-light);
  margin-right: 8px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--card-background);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.faq-item:hover {
  border-color: var(--blue-light);
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: 1.05em;
  cursor: pointer;
  color: var(--text);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background 0.2s ease;
}

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

.faq-item summary::after {
  content: '\f078';
  /* fa-chevron-down */
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.8em;
  color: var(--button-outline);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item summary:hover {
  background: var(--blue-transparent);
}

.faq-answer {
  padding: 0 24px 20px 24px;
  color: var(--text);
  line-height: 1.7;
  font-size: 0.95em;
  opacity: 0.85;
}

.faq-answer p {
  margin: 8px 0;
}

.faq-answer a {
  color: var(--blue-light);
  text-decoration: none;
}

.faq-answer a:hover {
  text-decoration: underline;
}

.faq-answer pre {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  overflow-x: auto;
  font-size: 0.9em;
  margin: 12px 0;
}

.faq-answer code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.92em;
}

.faq-answer p code {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
}

/* SITE FOOTER */
.site-footer {
  background: var(--card-background);
  border-top: 1px solid var(--border);
  padding: 40px 20px;
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.github-links {
  display: flex;
  gap: 15px;
  justify-content: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  width: 100%;
}

.site-footer .credit {
  font-size: 0.9em;
  opacity: 0.7;
  font-weight: 500;
  margin-top: 10px;
}

/* Animations */
@keyframes fade-in-up {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shine {
  to {
    background-position: 200% center;
  }
}

/* -------------------------------------------------------- */
.btn:focus {
  outline: var(--button-outline) auto 2px;
  outline-offset: 2px;
}

.btn:hover:not(:disabled) {
  background-color: var(--blue-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  background: var(--blue-transparent);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
  color: rgba(255, 255, 255, 0.7);
}

.parameters {
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
  text-align: left;
}

.parameters>div {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.parameters label {
  font-weight: 500;
  color: var(--text);
  font-size: 0.95em;
}

.parameters .btn {
  margin-top: 15px;
  align-self: flex-start;
}

.parameters input[type="text"],
.parameters input[type="number"],
.parameters input.jscolor,
.parameters select {
  padding: 12px 16px;
  display: block;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-sizing: border-box;
  font-family: 'Inter', inherit;
  background: var(--background);
  width: 100%;
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.parameters input[type="text"]:focus,
.parameters input[type="number"]:focus,
.parameters input.jscolor:focus,
.parameters select:focus {
  border-color: var(--blue-light);
  box-shadow: 0 0 0 3px var(--blue-transparent);
  outline: none;
}

.parameters input.jscolor {
  font-size: 12px;
  max-width: 130px;
}

@media only screen and (max-width: 1024px) {
  .parameters input.jscolor {
    max-width: none;
  }
}

.parameters select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='black' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
  background-repeat: no-repeat;
  background-position-x: 100%;
  background-position-y: 5px;
}

[data-theme="dark"] .parameters select {
  background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
}

.parameters select option[disabled] {
  display: none;
}

.parameters label,
.parameters span[data-property] {
  text-transform: capitalize;
}

.checkbox-buttons {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: wrap;
  gap: 8px;
  width: 100%;
}

.checkbox-buttons input {
  display: none !important;
}

.checkbox-buttons input[type="checkbox"]+label {
  font-size: 0.9em;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  height: 38px;
  min-width: 40px;
  margin: 0;
  cursor: pointer;
  background: var(--card-background);
  /* Stronger background for contrast */
  color: var(--text);
  border: 1px solid var(--border);
  padding: 0 16px;
  transition: all 0.2s ease;
  font-weight: 500;
  flex: 1 1 auto;
  /* Allow items to grow/shrink, taking available space */
}

.checkbox-buttons.weekdays input[type="checkbox"]+label {
  padding: 0;
  flex: 0 0 calc(14% - 8px);
  /* Calculate specific width for 7 days with gap */
  width: auto;
  min-width: 0;
}

.checkbox-buttons input[type="checkbox"]+label:hover {
  border-color: var(--blue-light);
  background: var(--blue-transparent);
}

.checkbox-buttons input[type="checkbox"]:checked+label {
  background: var(--button-bg);
  color: var(--button-text);
  border-color: var(--button-bg);
  box-shadow: var(--shadow-sm);
}

.checkbox-buttons input[type="checkbox"]:disabled+label {
  background: var(--card-background);
  color: var(--stroke);
  cursor: not-allowed;
}

span[title="required"] {
  color: var(--red);
}

input:focus:invalid {
  outline: 2px var(--red) auto;
}

.advanced {
  width: 100%;
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--background);
  overflow: hidden;
  transition: all 0.3s ease;
}

.advanced summary {
  padding: 15px;
  font-weight: 600;
  cursor: pointer;
  color: var(--text);
  background: var(--card-background);
  user-select: none;
  transition: background 0.2s ease;
  border-radius: inherit;
}

.advanced summary:hover {
  background: var(--blue-transparent);
}

.advanced[open] summary {
  border-bottom: 1px solid var(--border);
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.advanced .parameters {
  margin-top: 15px;
  padding: 0 15px 15px 15px;
}

.radio-button-group {
  display: flex;
  align-items: center;
  gap: 0.75em;
}

.advanced .color-properties {
  grid-template-columns: auto 1fr auto;
}

.advanced .grid-middle {
  display: grid;
  grid-template-columns: 30% 35% 35%;
}

.input-text-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.25em;
}

.input-text-group span {
  font-size: 0.8em;
  font-weight: bold;
  padding-right: 1.5em;
}

.advanced .color-properties label:first-of-type {
  font-weight: bold;
}

.plus.btn,
.minus.btn {
  margin: 0;
  background: inherit;
  color: inherit;
  font-size: 22px;
  padding: 0;
  height: 40px;
  width: 40px;
}

.plus.btn:hover,
.minus.btn:hover {
  background: var(--background);
}

.output img {
  max-width: 100%;
}

.output .warning {
  font-size: 0.84em;
  background: var(--yellow-light);
  padding: 8px 14px;
  border-left: 4px solid var(--yellow);
}

.output .code-container,
.output .json {
  background: var(--border);
  border-radius: 6px;
  padding: 12px 16px;
  word-break: break-all;
}

.output .btn {
  margin-top: 16px;
}

.top-bottom-split {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* tooltips */
.btn.tooltip {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* tooltip bubble */
.btn.tooltip:before {
  content: attr(title);
  position: absolute;
  transform: translateY(-45px);
  height: auto;
  width: auto;
  background: #4a4a4afa;
  border-radius: 4px;
  color: white;
  line-height: 30px;
  font-size: 1em;
  padding: 0 12px;
  pointer-events: none;
  opacity: 0;
}

/* tooltip bottom triangle */
.btn.tooltip:after {
  content: "";
  position: absolute;
  transform: translateY(-25px);
  border-style: solid;
  border-color: #4a4a4afa transparent transparent transparent;
  border-width: 5px;
  pointer-events: none;
  opacity: 0;
}

/* show tooltip on hover */
.btn.tooltip[title]:hover:before,
.btn.tooltip[title]:hover:after,
.btn.tooltip:disabled:hover:before,
.btn.tooltip:disabled:hover:after {
  transition: 0.2s ease-in opacity;
  opacity: 1;
}

.btn.tooltip:disabled:before {
  content: "You must first input a valid username.";
}

textarea#exported-php {
  margin-top: 10px;
  width: 100%;
  resize: vertical;
  height: 100px;
}

/* link underline effect */
a.underline-hover {
  position: relative;
  text-decoration: none;
  color: var(--text);
  margin-top: 1em;
  display: inline-flex;
  align-items: center;
  gap: 0.25em;
}

.underline-hover::before {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 0;
  height: 1px;
  background-color: var(--blue-light);
  transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

@media (hover: hover) and (pointer: fine) {
  .underline-hover:hover::before {
    left: 0;
    right: auto;
    width: 100%;
  }
}