@font-face {
  font-family: "Vazir";
  src: url("../font/vazir/Vazir-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Vazir";
  src: url("../font/vazir/Vazir-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

/* =========================
   ROOT VARIABLES
========================= */

:root {

  /* Colors */
  --ati-green: #194538;
  --ati-green-deep: #0f2c22;
  --ati-green-hover: #123629;

  /* LIGHT THEME */
  --ati-white: #fae2b7;

  --ati-text-main: #194538;
  --ati-text-soft: rgba(25, 69, 56, 0.72);

  --glass-bg: rgba(250, 230, 151, 0.72);
  --glass-bg-hover: rgba(254, 231, 177, 0.9);

  --glass-border: rgba(25, 69, 56, 0.12);
  --glass-highlight: rgba(252, 225, 168, 0.7);

  --gold-border: rgba(212, 175, 55, 0.35);

  /* Radius */
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;

  /* Shadow */
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-heavy: 0 18px 40px rgba(0, 0, 0, 0.14);

  /* Transition */
  --transition-fast: 0.22s ease;
  --transition-main: 0.35s ease;

  /* Layout */
  --container-width: 1180px;
}

/* =========================
   RESET
========================= */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
p,
ul,
li {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

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

button,
textarea,
input {
  font: inherit;
}

a {
  text-decoration: none;
  color: inherit;
}

/* =========================
   BODY
========================= */

body {
  font-family: "Vazirmatn", "Vazir", sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ati-text-main);

  background:
    linear-gradient(
      rgba(7, 12, 10, 0.62),
      rgba(7, 12, 10, 0.76)
    ),
    url("../photos/wallpaper/space.webp")
    center / cover no-repeat fixed;

  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    filter var(--transition-fast);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;

  background:
    radial-gradient(
      circle at top right,
      rgba(25, 69, 56, 0.12),
      transparent 28%
    ),
    radial-gradient(
      circle at bottom left,
      rgba(25, 69, 56, 0.08),
      transparent 24%
    );

  z-index: 0;
}

body.page-exit {
  opacity: 0;
  transform: scale(0.985);
  filter: blur(4px);
}

/* =========================
   COMMON
========================= */

.container {
  position: relative;
  z-index: 2;

  width: min(
    calc(100% - 2rem),
    var(--container-width)
  );

  margin-inline: auto;
}

.category-card,
.site-info-box,
.ati-feedback-modal-box {
  backdrop-filter: blur(16px) saturate(135%);
  -webkit-backdrop-filter: blur(16px) saturate(135%);
}

/* =========================
   LANDING
========================= */

.ati-landing {
  position: relative;
  overflow: hidden;

  background: rgba(251, 221, 166, 0.82);

  transition:
    opacity 1s ease,
    transform 1s ease,
    filter 1s ease;
}

.ati-landing-hidden {
  opacity: 0;
  transform: translateY(-40px) scale(0.985);
  filter: blur(8px);
  pointer-events: none;
}

/* =========================
   HERO
========================= */

.ati-hero {
  position: relative;
  overflow: hidden;

  height: 68vh;
  min-height: 480px;
  max-height: 760px;

  background: #000;
}

.ati-hero-video {
  position: absolute;
  inset: 0;

  width: 100%;
  height: 100%;

  object-fit: cover;
  transform: scale(1.03);
}

.ati-hero-topbar {
  position: absolute;
  top: 2rem;
  right: 2rem;
  z-index: 3;
}

.ati-hero-logo {
  width: clamp(110px, 12vw, 170px);

  filter:
    drop-shadow(
      0 8px 18px rgba(0,0,0,0.18)
    );
}

/* =========================
   INTRO CONTENT
========================= */

.ati-content-panel {
  background: #f6f1e8;
}

.ati-content-inner {
  width: min(1120px, calc(100% - 2rem));

  margin-inline: auto;
  padding: 4.5rem 0 4rem;

  text-align: center;
}

.ati-divider {
  display: flex;
  justify-content: center;

  margin-bottom: 1rem;
  padding-top: 0.8rem;
}

.ati-divider span {
  position: relative;

  width: 120px;
  height: 1px;

background: rgba(25, 69, 56, 0.18);
}

.ati-divider span::after {
  content: "";

  position: absolute;
  top: 50%;
  left: 50%;

  width: 10px;
  height: 10px;

  transform:
    translate(-50%, -50%)
    rotate(45deg);

  background: #f6f1e8;

  border:
    1px solid rgba(25, 69, 56, 0.22);
}

.ati-main-title {
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.03em;

  color: #194538;
}

.ati-subtitle {
  width: min(760px, 100%);

  margin:
    1.2rem auto 0;

    color: rgba(25, 69, 56, 0.78);

  font-size:
    clamp(0.96rem, 1.2vw, 1.08rem);

  line-height: 2;
}

/* =========================
   HERO CUE
========================= */

.ati-hero-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;

  margin-top: 1.5rem;
  padding: 0.75rem 1rem;

  border-radius: 999px;

   border:
   1px solid rgba(163, 201, 181, 0.22);

  color:
    rgb(255, 255, 255);

  background: rgba(18, 54, 40, 0.889);

  box-shadow:
    0 6px 18px rgba(0,0,0,0.05);

  font-size: 0.88rem;

  backdrop-filter: blur(10px);

  box-shadow:
    0 6px 18px rgba(0,0,0,0.05);
}

@media (max-width: 768px) {

  .ati-content-inner {
    padding:
      1.5rem 0 5rem;

    text-align: center;
  }

  .ati-hero-cue {
    display: flex;
    justify-content: center;
    align-items: center;

    margin: 1.5rem auto 0;

    width: fit-content;
  }

  .ati-main-title,
  .ati-subtitle,
  .ati-feature-item {
    text-align: center;
  }

}
.ati-hero-arrow {
  animation:
    arrowFloat 1.8s ease-in-out infinite;
}

@keyframes arrowFloat {

  0%,
  100% {
    transform: translateY(0);
    opacity: 0.7;
  }

  50% {
    transform: translateY(5px);
    opacity: 1;
  }
}

/* =========================
   FEEDBACK BUTTON
========================= */

.ati-intro-feedback-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-height: 48px;

  margin-top: 1.2rem;
  padding: 0.85rem 1.5rem;

  border-radius: 999px;

  border:
    1px solid rgba(25,69,56,0.12);

  background: #194538;

  color: #f6f1e8;

  box-shadow:
    0 10px 24px rgba(25,69,56,0.14);

  font-size: 0.95rem;
  font-weight: 700;

  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.ati-intro-feedback-btn:hover {
  transform: translateY(-2px);

  border-color:
    rgba(212,175,55,0.45);

  background: #123629;
  color: #fff;
}

/* =========================
   FEATURES
========================= */

.ati-features {
  display: grid;
  grid-template-columns:
    repeat(3, minmax(0, 1fr));

  gap: 1.5rem;

  margin-top: 3.5rem;
  padding-top: 2rem;

  border-top:
    1px solid rgba(25, 69, 56, 0.1);
}

.ati-feature-item {
  text-align: center;
  padding-inline: 1rem;
}

.ati-feature-icon {
  margin-bottom: 0.8rem;

  font-size: 1.05rem;

  color: #194538;
}

.ati-feature-item h3 {
  margin-bottom: 0.7rem;

  color: #194538;

  font-size: 1.05rem;
  font-weight: 700;
}

.ati-feature-item p {
  max-width: 300px;
  margin-inline: auto;

  color: rgba(25, 69, 56, 0.72);

  line-height: 1.9;
  font-size: 0.94rem;
}

/* =========================
   MAIN CONTENT
========================= */

.container {
  padding:
    3rem 0 4rem;
}

.header {
  margin-bottom: 2rem;
  text-align: center;

  animation:
    fadeDown 0.8s ease both;
}

.logo {
  width: 96px;

  margin-inline: auto;
  margin-bottom: 1rem;

  filter:
    drop-shadow(
      0 4px 12px rgba(0,0,0,0.35)
    );
}

.tagline {
  font-size: clamp(1.2rem, 3vw, 2rem);

  color:
    rgba(245,247,246,0.86);

  text-shadow:
    0 2px 10px rgba(0,0,0,0.2);
}

/* =========================
   CATEGORY CARDS
========================= */

.category-list {
  display: grid;
  gap: 1.3rem;

  max-width: 920px;
  margin-inline: auto;
}

.category-card {
  position: relative;
  isolation: isolate;

  display: flex;
  align-items: stretch;

  overflow: hidden;

  border-radius: var(--radius-xl);

  border:
    0.5px solid var(--glass-border);

  background:
   rgba(255, 251, 245, 0.10);

  box-shadow:
    var(--shadow-soft),
    inset 0 1px 0 var(--glass-highlight);

  cursor: pointer;

  transition:
    transform var(--transition-main),
    border-color var(--transition-main),
    background var(--transition-main),
    box-shadow var(--transition-main);

  opacity: 0;
  transform: translateY(24px);

  animation:
    cardIn 0.6s ease forwards;
}

.category-card:nth-child(2) {
  animation-delay: 0.12s;
}

.category-card:nth-child(3) {
  animation-delay: 0.24s;
}

.category-card:nth-child(4) {
  animation-delay: 0.36s;
}

.category-card::before {
  content: "";

  position: absolute;
  inset: 0;

  background:
    linear-gradient(
      135deg,
      rgba(255, 240, 164, 0.177),
      transparent 35%,
      rgba(25,69,56,0.08)
    );

  pointer-events: none;
}

.category-card::after {
  content: "";

  position: absolute;
  inset: 0;

  padding: 1px;

  border-radius: inherit;

  background:
    linear-gradient(
      135deg,
      rgba(212,175,55,0.1),
      rgba(255,215,120,0.92),
      rgba(212,175,55,0.2)
    );

  opacity: 0;

  transition:
    opacity var(--transition-main);

  pointer-events: none;

  mask:
    linear-gradient(#194538 0 0) content-box,
    linear-gradient(#194538 0 0);

  -webkit-mask:
    linear-gradient(#194538 0 0) content-box,
    linear-gradient(#194538 0 0);

  mask-composite: exclude;
  -webkit-mask-composite: xor;
}

.category-card:hover {
  transform:
    translateY(-5px)
    scale(1.01);

  border-color:
    var(--gold-border);

  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03)),
    rgba(18, 52, 43, 0.55);
  border: 1px solid rgba(163, 201, 181, 0.22);
  border-radius: 22px;
  

  box-shadow:
    var(--shadow-heavy),
    0 0 30px rgba(212,175,55,0.1);
}

.category-card:hover::after {
  opacity: 1;
}

.card-image {
  position: relative;

  width: 25%;
  min-height: 170px;

  overflow: hidden;

  flex-shrink: 0;
}

.card-image::after {
  content: "";

  position: absolute;
  inset: 0;

  background:
    linear-gradient(
      to left,
      rgba(10, 20, 17, 0.238),
      rgba(10,20,17,0.24)
    );
}

.card-image img {
  width: 100%;
  height: 100%;

  object-fit: cover;

  transition:
    transform 0.45s ease;
}

.category-card:hover .card-image img {
  transform: scale(1.06);
}

.card-content {
  position: relative;
  z-index: 1;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;

  flex: 1;

  padding: 1.5rem;
}

.card-content h2 {
  margin-bottom: 0.5rem;

  font-size: 1.45rem;
  font-weight: 700;
}

.card-content p {
  max-width: 90%;

  color: white;

  line-height: 1.9;
}

.arrow {
  position: absolute;
  left: 1.4rem;
  bottom: 1.4rem;

  font-size: 1.4rem;

  color:
    rgba(214,240,229,0.88);

  transition:
    transform var(--transition-fast),
    color var(--transition-fast);
}

.category-card:hover .arrow {
  transform: translateX(-5px);
  color:  rgba(212, 175, 55, 0.45);
}

/* =========================
   FOOTER
========================= */

.site-info-footer {
  position: relative;
  z-index: 2;

  padding:
    1rem 1rem 3rem;
}

.site-info-container {
  width:
    min(100%, 1280px);

  margin-inline: auto;

  display: grid;
  grid-template-columns:
    repeat(4, minmax(0, 1fr));

  gap: 1rem;
}

.site-info-box {
  padding: 1.4rem 1.2rem;

  border-radius: var(--radius-lg);

  border:
    1px solid var(--glass-border);

  background:
    linear-gradient(
      135deg,
      rgba(255,255,255,0.08),
      rgba(255,255,255,0.03)
    ),
    rgba(18,52,43,0.58);

  box-shadow:
    var(--shadow-soft),
    inset 0 1px 0 rgba(255,255,255,0.08);
}

.site-info-box h3 {
  color: white;
  margin-bottom: 1rem;

  font-size: 1.05rem;
  font-weight: 700;
}

.site-info-box p,
.site-info-box li {
  color:
    rgba(235,247,241,0.92);

  line-height: 2;
  font-size: 0.94rem;
}

.site-info-box a {
  color: #d8f5e7;

  transition:
    color var(--transition-fast);
}

.site-info-box a:hover {
  color: #fff;
}

.site-info-credit {
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* =========================
   MODAL
========================= */

.ati-feedback-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;

  display: none;
}

.ati-feedback-modal.active {
  display: block;
}

.ati-feedback-modal-overlay {
  position: absolute;
  inset: 0;

  background:
    rgba(7,18,14,0.45);

  backdrop-filter: blur(4px);
}

.ati-feedback-modal-box {
  position: relative;

  width: min(92%, 460px);

  margin:
    8vh auto 0;

  padding: 1.4rem;

  border-radius: 22px;

  border:
    1px solid rgba(196,228,213,0.18);

  background:
    linear-gradient(
      135deg,
      rgba(255,255,255,0.08),
      rgba(255,255,255,0.03)
    ),
    rgba(18,52,43,0.68);

  box-shadow:
    var(--shadow-heavy),
    inset 0 1px 0 rgba(255,255,255,0.08);
}

.ati-feedback-close {
  position: absolute;
  top: 0.8rem;
  left: 0.9rem;

  border: 0;
  background: transparent;

  color: #fff;

  font-size: 1.5rem;

  cursor: pointer;
}

.ati-feedback-title {
  margin-bottom: 0.5rem;

  font-size: 1.1rem;
  font-weight: 700;
}

.ati-feedback-note {
  margin-bottom: 1rem;

  color:
    rgba(244,248,245,0.82);

  line-height: 1.9;

  font-size: 0.92rem;
}

.ati-feedback-form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.ati-feedback-textarea {
  width: 100%;
  min-height: 130px;

  resize: vertical;

  padding: 1rem;

  border-radius: 16px;

  border:
    1px solid rgba(196,228,213,0.18);

  background:
    rgba(255,255,255,0.08);

  color: #fff;

  outline: none;

  transition:
    border-color var(--transition-fast),
    background var(--transition-fast);
}

.ati-feedback-textarea::placeholder {
  color:
    rgba(255,255,255,0.6);
}

.ati-feedback-textarea:focus {
  border-color:
    rgba(220,243,233,0.34);

  background:
    rgba(255,255,255,0.11);
}

.ati-feedback-submit {
  align-self: flex-end;

  min-width: 120px;
  min-height: 44px;

  padding:
    0.7rem 1.3rem;

  border: 0;
  border-radius: 999px;

  background: #f6f1e8;
  color: #3f4340;

  font-weight: 700;

  cursor: pointer;

  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);

  box-shadow:
    0 8px 18px rgba(0,0,0,0.18);
}

.ati-feedback-submit:hover {
  transform: translateY(-2px);

  box-shadow:
    0 12px 22px rgba(0,0,0,0.22);
}

/* =========================
   ANIMATIONS
========================= */

@keyframes fadeDown {

  from {
    opacity: 0;
    transform: translateY(-16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cardIn {

  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 992px) {

  .ati-features,
  .site-info-container {
    grid-template-columns: 1fr 1fr;
  }

  .category-list {
  display: grid;
  gap: 1.3rem;

  max-width: 820px;
  margin-inline: auto;
}

  .card-image {
    width: 34%;
  }
}

@media (max-width: 768px) {

  .ati-content-inner {
    padding: 1.5rem 0 5rem;
    text-align: center;
  }

  .ati-main-title,
  .ati-subtitle,
  .ati-feature-item {
    text-align: center;
  }

  .ati-features,
  .site-info-container {
    grid-template-columns: 1fr;
  }

  .ati-feature-item p {
    max-width: 100%;
    margin: 0;
  }

  /* =========================
     MOBILE CATEGORY CARDS
  ========================= */

  .category-list {
    gap: 1rem;
  }

  .category-card {
    flex-direction: row;
    align-items: stretch;

    min-height: 130px;
    max-height: 130px;

    border-radius: 24px;

    overflow: hidden;
  }

  .card-image {
    width: 42%;
    min-height: 100%;
    height: 130px;

    flex-shrink: 0;
  }

  .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .card-content {
    flex: 1;

    display: flex;
    flex-direction: column;
    justify-content: center;

    padding: 1rem 1rem 1rem 1.2rem;

    text-align: right;
  }

  .card-content h2 {
    margin-bottom: 0.35rem;

    font-size: 1.05rem;
    line-height: 1.5;
  }

  .card-content p {
    max-width: 100%;

    font-size: 0.82rem;
    line-height: 1.8;

    color: rgba(245,247,246,0.72);
  }

  .arrow {
    left: 1rem;
    bottom: 1rem;

    font-size: 1rem;
  }

  .ati-feedback-submit {
    width: 100%;
  }
}

@media (max-width: 480px) {

  .ati-hero {
    height: 52vh;
    min-height: 340px;
  }

  .category-list {
  display: grid;
  gap: 1.3rem;

  max-width: 300px;
  margin-inline: auto;
}


  .ati-hero-logo {
    width: 100px;
  }

  .ati-main-title {
    font-size: 1.8rem;
  }

  .ati-subtitle {
    font-size: 0.92rem;
  }

  .card-image {
    min-height: 180px;
  }

  .site-info-box {
    text-align: center;
  }
}

/* =========================
   ACCESSIBILITY
========================= */

@media (prefers-reduced-motion: reduce) {

  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .category-card {
    opacity: 1;
    transform: none;
  }
}

/* =========================
   MOBILE TAP FIX
========================= */

a,
button,
.category-card {
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}