/* ============================================================
   Kisan Fedco – styles.css
   Simple, clean, production-ready stylesheet
   ============================================================ */

/* ── CSS VARIABLES ─────────────────────────────────────── */
:root {
  /* Brand colors */
  --color-primary: #168B4B;
  /* deep forest green */
  --color-primary-dark: #00522C;
  --color-primary-light: #e8f5ec;
  --color-accent: #F99116;
  /* warm gold */

  --color-text: #222222;
  --color-text-muted: #555555;
  --color-border: #d0d5d0;
  --color-bg: #ffffff;
  --color-bg-alt: #f8faf8;
  --color-white: #ffffff;

  /* Typography */
  --font-family-sans: 'Roboto', Arial, sans-serif;
  --font-family-serif: 'Merriweather', Georgia, serif;
  --font-size-base: 16px;
  --line-height: 1.6;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;

  /* Layout */
  --container-max: 1100px;
  --navbar-height: 70px;

  /* Borders */
  --radius: 2px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* ── RESET & BASE ───────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-family-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-family-serif);
  font-weight: 700;
  color: var(--color-primary);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul {
  list-style: none;
}

/* ── CONTAINER ──────────────────────────────────────────── */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-family-sans);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--primary:hover,
.btn--primary:focus {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  text-decoration: none;
}

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

.btn--outline:hover,
.btn--outline:focus {
  background: var(--color-primary-light);
  text-decoration: none;
}

.btn--doc {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  padding: 0.45rem 1.1rem;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.btn--doc:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

.btn--full {
  width: 100%;
}

/* ── NAVBAR ─────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  height: var(--navbar-height);
  border-bottom: 3px solid var(--color-accent);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.navbar__logo-img {
  height: 40px;
  width: auto;
}

.navbar__logo-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius);
  letter-spacing: 0.05em;
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.navbar__link {
  color: var(--color-primary);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.3rem 0;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.navbar__link:hover,
.navbar__link:focus {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}

/* Mobile nav open state */
.navbar__toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.navbar__toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── HERO ────────────────────────────────────────────────── */
.hero {
  background: var(--color-primary);
  padding: var(--space-xl) 0;
  border-bottom: 4px solid var(--color-accent);
}

.hero__inner {
  /* margin and padding handled by .container */
}

.hero__badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 2px;
  margin-bottom: var(--space-sm);
}

.hero__heading {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.35;
  margin-bottom: var(--space-sm);
}

.hero__sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
  max-width: 640px;
}

.hero__sub strong {
  color: var(--color-white);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.hero__actions .btn--outline {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.hero__actions .btn--outline:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ── SECTIONS ────────────────────────────────────────────── */
.section {
  padding: var(--space-xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  margin-bottom: var(--space-lg);
}

.section__title {
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

.section__subtitle {
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  font-size: 0.9375rem;
}

/* ── DOCUMENTS GRID ──────────────────────────────────────── */
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}

.doc-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  box-shadow: var(--shadow-card);
}

.doc-card:hover {
  border-color: var(--color-primary);
}

.doc-card__icon {
  font-size: 1.5rem;
  line-height: 1;
}

.doc-card__body {
  flex: 1;
}

.doc-card__title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.45;
}

/* ── ABOUT ───────────────────────────────────────────────── */
.about__content {
  max-width: 820px;
  margin-bottom: var(--space-lg);
}

.about__lead {
  font-size: 1.0625rem;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.about__text {
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.objects {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-card);
}

.objects__heading {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-xs);
}

.objects__subheading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.objects__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.objects__list li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.objects__list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 0.8em;
  top: 0.25em;
}

.about__docs-heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.about__docs-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact__info-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.contact__info-item:last-child {
  border-bottom: none;
}

.contact__info-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.contact__info-value {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.contact__info-link {
  color: var(--color-primary);
  font-weight: 500;
}

/* Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form__row {
  display: flex;
  gap: var(--space-md);
}

.form__row .form__group {
  flex: 1;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form__label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.form__required {
  color: #c0392b;
  margin-left: 2px;
}

.form__optional {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  font-weight: 400;
}

.form__input,
.form__textarea {
  font-family: var(--font-family);
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.6rem 0.875rem;
  transition: border-color 0.18s, box-shadow 0.18s;
  width: 100%;
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 92, 42, 0.12);
}

.form__input.is-invalid,
.form__textarea.is-invalid {
  border-color: #c0392b;
}

.form__textarea {
  resize: vertical;
  min-height: 130px;
}

.form__error {
  font-size: 0.8rem;
  color: #c0392b;
  min-height: 1em;
}

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: var(--color-primary);
  border-top: 3px solid var(--color-accent);
  padding: var(--space-lg) 0;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.footer__copy {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer__nav,
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__link {
  color: rgba(255, 255, 255, 0.80);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.15s;
}

.footer__link:hover {
  color: var(--color-white);
  text-decoration: underline;
}

/* ── RESPONSIVENESS ──────────────────────────────────────── */

/* Tablet */
@media (max-width: 900px) {
  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --space-xl: 2.5rem;
    --space-lg: 2rem;
  }

  .navbar__nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--color-primary-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: var(--space-sm) 0;
    z-index: 99;
  }

  .navbar__nav.is-open {
    display: flex;
  }

  .navbar__link {
    display: block;
    width: 100%;
    padding: 0.75rem var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 1rem;
  }

  .navbar__link:last-child {
    border-bottom: none;
  }

  .navbar__toggle {
    display: flex;
  }

  .hero__inner {
    margin-left: auto;
    max-width: 100%;
  }

  .docs-grid {
    grid-template-columns: 1fr;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer__nav,
  .footer__legal {
    gap: var(--space-sm);
  }
}