@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap');

:root {
  /* Colors */
  --color-canvas-ice: #fbfdf6;
  --color-adaline-ink: #0a1d08;
  --color-mist-gray: #c5ccb6;
  --color-deep-earth: #31200b;
  --color-valley-green: #203b14;
  --color-stone-moss: #e0e5d5;
  --color-amber-seed: #4a3212;
  --color-forest-dew: #d7e8b5;
  --color-blackest-night: #000000;

  /* Typography — Font Families (using Inter as fallback for Akkurat) */
  --font-akkurat: 'akkurat', 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-fragmentmono: 'fragmentMono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Typography — Scale */
  --text-caption: 12px;
  --leading-caption: 1.43;
  --text-body-sm: 14px;
  --leading-body-sm: 1.43;
  --text-body: 18px;
  --leading-body: 1.43;
  --text-body-lg: 47px;
  --leading-body-lg: 1.3;
  --text-heading-sm: 53px;
  --leading-heading-sm: 1.3;

  /* Typography — Weights */
  --font-weight-regular: 400;
  --font-weight-bold: 700;

  /* Spacing */
  --spacing-8: 8px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-32: 32px;
  --spacing-40: 40px;
  --spacing-48: 48px;
  --spacing-64: 64px;
  --spacing-128: 128px;
  --spacing-160: 160px;

  /* Border Radius */
  --radius-lg: 8px;
  --radius-2xl: 20px;

  /* Named Radii */
  --radius-images: 8px;
  --radius-buttons: 20px;
  --radius-navitems: 20px;

  /* Shadows */
  --shadow-subtle: rgba(99, 143, 61, 0.1) 0px 0px 0px 1px;
  
  /* Layout */
  --section-gap: 48px;
  --card-padding: 24px;
  --element-gap: 4px;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-akkurat);
    color: var(--color-adaline-ink);
    background-color: var(--color-canvas-ice);
    background-image: url('https://images.unsplash.com/photo-1472214103451-9374bd1c798e?auto=format&fit=crop&q=80&w=2000');
    background-size: cover;
    background-position: center bottom;
    background-repeat: no-repeat;
    background-attachment: fixed;
    min-height: 100vh;
    letter-spacing: -0.04em;
}

/* Glassmorphism wrapper to match the light theme over background */
.page-wrapper {
    min-height: 100vh;
    background: linear-gradient(to bottom, rgba(251, 253, 246, 0.9) 0%, rgba(251, 253, 246, 0.6) 40%, rgba(251, 253, 246, 0) 100%);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-24);
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-16) 0;
    margin-bottom: var(--spacing-64);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-32);
}

.nav-links {
    display: flex;
    gap: var(--spacing-16);
}

.nav-link {
    font-size: var(--text-body-sm);
    text-decoration: none;
    color: var(--color-adaline-ink);
    padding: var(--spacing-8) var(--spacing-16);
    border-radius: var(--radius-navitems);
    transition: all 0.2s;
    font-weight: 500;
}

.nav-link:hover {
    background-color: var(--color-forest-dew);
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    color: var(--color-adaline-ink);
}

.nav-right {
    display: flex;
    gap: var(--spacing-16);
    align-items: center;
}

/* Buttons */
.btn {
    font-family: var(--font-akkurat);
    font-size: var(--text-caption);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: var(--radius-buttons);
    padding: 12px var(--spacing-24);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background-color: var(--color-amber-seed);
    color: var(--color-canvas-ice);
    border: none;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-ghost {
    background-color: var(--color-canvas-ice);
    color: var(--color-valley-green);
    border: 1px solid var(--color-stone-moss);
}

.btn-ghost:hover {
    border-color: var(--color-valley-green);
    color: var(--color-adaline-ink);
}

/* Hero Section */
.hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-64);
}

.hero h1 {
    font-size: var(--text-heading-sm);
    line-height: var(--leading-heading-sm);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-48);
}

/* Trusted By */
.trusted-by {
    text-align: center;
    margin-bottom: var(--spacing-64);
}

.trusted-label {
    font-family: var(--font-fragmentmono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-mist-gray);
    margin-bottom: var(--spacing-24);
}

.logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-48);
    flex-wrap: wrap;
    opacity: 0.7;
}

.logos img {
    height: 24px;
    filter: grayscale(100%) contrast(200%);
}

/* Main App Container (Card) */
.app-container {
    background-color: rgba(251, 253, 246, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--color-stone-moss);
    border-radius: var(--radius-lg);
    padding: var(--card-padding);
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow-subtle);
}

/* Form Styles */
.file-upload-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-24);
}

@media (min-width: 768px) {
    .file-upload-row {
        flex-direction: row;
        align-items: stretch;
    }
    .file-upload-row .form-group {
        flex: 1;
        margin-bottom: 0;
    }
}

.form-group {
    margin-bottom: var(--spacing-24);
}

.flex-column {
    display: flex;
    flex-direction: column;
}

.mt-auto {
    margin-top: auto;
}

.file-upload-label-wrapper {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.label-header {
    display: block;
    font-size: var(--text-body-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-8);
}

.form-group label:not(.file-upload-label) {
    display: block;
    font-size: var(--text-body-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-8);
}

.file-number {
    display: inline-block;
    background: var(--color-stone-moss);
    color: var(--color-adaline-ink);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    text-align: center;
    line-height: 20px;
    font-size: 12px;
    margin-right: 8px;
}

/* Custom File Upload Styling from Uiverse */
.file-upload-label input {
  display: none;
}

.file-upload-label svg {
  height: 50px;
  fill: var(--color-valley-green);
  margin-bottom: 20px;
}

.file-upload-label {
  cursor: pointer;
  background-color: var(--color-canvas-ice);
  padding: 20px;
  min-height: 240px;
  border-radius: var(--radius-2xl);
  border: 2px dashed var(--color-mist-gray);
  color: var(--color-adaline-ink);
  
  /* Flexbox for centering content and making it fill height */
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  transition: all 0.3s;
  overflow: hidden;
}

.file-upload-label:hover {
  border-color: var(--color-valley-green);
  background-color: var(--color-forest-dew);
}

.file-upload-design {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.browse-button {
  background-color: var(--color-stone-moss);
  padding: 5px 15px;
  border-radius: var(--radius-lg);
  color: var(--color-adaline-ink);
  transition: all 0.3s;
  font-weight: 600;
  margin-top: 10px;
}

.file-upload-label:hover .browse-button {
  background-color: var(--color-valley-green);
  color: var(--color-canvas-ice);
}

input[type="text"], .form-select {
    width: 100%;
    padding: var(--spacing-16);
    background-color: var(--color-canvas-ice);
    border: 1px solid var(--color-mist-gray);
    border-radius: var(--radius-lg);
    font-family: var(--font-fragmentmono);
    font-size: var(--text-body-sm);
    color: var(--color-adaline-ink);
    transition: all 0.2s;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

input[type="text"]:focus, .form-select:focus {
    border-color: var(--color-valley-green);
    outline: none;
}

.help-text {
    display: block;
    font-size: var(--text-caption);
    color: var(--color-mist-gray);
    margin-top: 4px;
}

.file-info {
    font-family: var(--font-fragmentmono);
    font-size: var(--text-caption);
    background: var(--color-forest-dew);
    padding: 8px;
    border-radius: 4px;
    margin-top: 8px;
    display: none;
}

/* Alerts */
.alert {
    padding: var(--spacing-16);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-24);
    font-size: var(--text-body-sm);
    border: 1px solid transparent;
}

.alert-error {
    background-color: #fff0f0;
    border-color: #ffcccc;
    color: #990000;
}

.alert-success {
    background-color: var(--color-forest-dew);
    border-color: var(--color-stone-moss);
    color: var(--color-valley-green);
}

/* Constraints */
.constraints {
    margin-bottom: var(--spacing-32);
    padding: var(--spacing-16);
    border: 1px solid var(--color-stone-moss);
    border-radius: var(--radius-lg);
    background: rgba(251, 253, 246, 0.5);
}

.constraints h4 {
    font-size: var(--text-caption);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-8);
}

.constraints ul {
    list-style: none;
    font-size: var(--text-caption);
    color: var(--color-deep-earth);
}

.constraints li::before {
    content: "•";
    color: var(--color-valley-green);
    margin-right: 8px;
}

.btn-submit {
    width: 100%;
}

/* Select Wrapper Modern */
.select-wrapper {
    position: relative;
    width: 100%;
}
.select-wrapper .form-select {
    padding-right: 40px;
    cursor: pointer;
}
.select-arrow {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* From Uiverse.io by gharsh11032000 - Adapted Button */
.uiverse-button {
  cursor: pointer;
  position: relative;
  padding: 14px 24px;
  font-size: 18px;
  color: var(--color-valley-green);
  border: 2px solid var(--color-valley-green);
  border-radius: 34px;
  background-color: transparent;
  font-family: var(--font-outfit);
  font-weight: 700;
  letter-spacing: 1px;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.320, 1);
  overflow: hidden;
  text-transform: uppercase;
}

.uiverse-button::before {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 50px;
  height: 50px;
  border-radius: inherit;
  scale: 0;
  z-index: -1;
  background-color: var(--color-valley-green);
  transition: all 0.6s cubic-bezier(0.23, 1, 0.320, 1);
}

.uiverse-button:hover::before {
  scale: 15;
}

.uiverse-button:hover {
  color: var(--color-canvas-ice);
  scale: 1.02;
  box-shadow: 0 0px 20px rgba(16, 185, 129, 0.4);
}

.uiverse-button:active {
  scale: 1;
}