/* ========== RESET + BASE ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Arial, sans-serif;
  background: #f2f2f2;
}

body {
  width: 100%;
  min-height: 100vh;
  background: white;
  color: #111;
  overflow-x: hidden;
}

/* ========== HEADER (STORIES) ========== */
.story_header {
  height: 95px;
  width: 100%;
  border-bottom: 1px solid rgba(0, 0, 0, 0.15);

  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px;

  background: white;
}

#admin_story,
#other_story {
  height: 78px;
  width: 78px;
  border-radius: 50%;
  border: 2px solid #111;

  display: flex;
  justify-content: center;
  align-items: center;

  position: relative;
  flex-shrink: 0;
}

#inner_circle_as,
#inner_circle_os {
  height: 68px;
  width: 68px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid white;
}

#inner_circle_as img,
#inner_circle_os img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  display: block;
}

#add_story_btn {
  height: 22px;
  width: 22px;

  position: absolute;
  right: 2px;
  bottom: 2px;

  cursor: pointer;
}

/* ========== MAIN FEED ========== */
main {
  padding-bottom: 90px;
}

.post_window {
  width: 96%;
  max-width: 430px;

  margin: 14px auto;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.15);

  background: white;
  overflow: hidden;
}

/* ========== POST HEADER ========== */
.pw_header {
  height: 62px;
  display: flex;
  align-items: center;
  gap: 12px;

  padding: 10px 12px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
}

#profile_pic {
  height: 46px;
  width: 46px;

  border-radius: 50%;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.3);

  flex-shrink: 0;
}

#profile_pic img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  display: block;
}

.post_user_info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.post_username {
  font-size: 15px;
  font-weight: 750;
  color: #111;
}

.post_location {
  font-size: 12px;
  font-weight: 600;
  color: rgba(0, 0, 0, 0.6);
  margin-top: 2px;
}

.post_menu {
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.three_dots {
  font-size: 20px;
  font-weight: 900;
  color: rgba(0, 0, 0, 0.8);
  user-select: none;
}

/* ========== POST IMAGE ========== */
.pw_main {
  width: 100%;
  height: 390px;
  background: #f3f3f3;
  position: relative;
}

.pw_main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ========== HEART OVERLAY ========== */
.heart_overlay {
  position: absolute;
  top: 50%;
  left: 50%;

  width: 90px;
  height: 90px;

  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  pointer-events: none;
}

.heart_overlay::before,
.heart_overlay::after {
  content: "";
  position: absolute;

  width: 45px;
  height: 70px;

  background: red;
  border-radius: 50px 50px 0 0;
  top: 5px;
}

.heart_overlay::before {
  left: 45px;
  transform: rotate(-45deg);
  transform-origin: 0 100%;
}

.heart_overlay::after {
  left: 0px;
  transform: rotate(45deg);
  transform-origin: 100% 100%;
}

@keyframes heartPop {
  0% {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
  }
  40% {
    transform: translate(-50%, -50%) scale(1.15);
    opacity: 1;
  }
  70% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(0.85);
    opacity: 0;
  }
}

.show_heart {
  animation: heartPop 0.85s ease forwards;
}

/* ========== POST FOOTER ========== */
.pw_footer {
  padding: 10px 12px 14px 12px;
}

#interaction {
  display: flex;
  justify-content: space-between;
  align-items: center;

  padding-top: 4px;
}

.left_interaction,
.right_interaction {
  display: flex;
  align-items: center;
  gap: 14px;
}

#like_btn,
#comment_btn,
#share_btn,
#save_btn {
  height: 32px;
  width: 32px;
  object-fit: contain;
  display: block;
  cursor: pointer;
}

.like_count_area {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 650;
  color: #111;
}

#caption_area {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  color: #111;
}

#caption_area b {
  font-weight: 850;
}

.hashtags {
  font-weight: 650;
  color: rgba(0, 0, 0, 0.65);
}

.comment_preview {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.45;
  color: rgba(0, 0, 0, 0.85);
}

.view_comments {
  font-weight: 750;
  margin-bottom: 6px;
  color: rgba(0, 0, 0, 0.6);
}

.add_comment_area {
  margin-top: 12px;
  padding-top: 12px;

  border-top: 1px solid rgba(0, 0, 0, 0.12);

  display: flex;
  align-items: center;
  gap: 10px;
}

.comment_input {
  flex: 1;
  height: 40px;

  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.25);

  padding: 8px 12px;
  font-size: 14px;
  font-weight: 600;

  outline: none;
}

.comment_input:focus {
  border-color: rgba(0, 0, 0, 0.55);
}

.comment_input::placeholder {
  font-weight: 600;
  color: rgba(0, 0, 0, 0.5);
}

.post_comment_btn {
  height: 40px;
  padding: 0px 16px;

  border-radius: 10px;
  border: none;

  background: #111;
  color: white;

  font-weight: 750;
  font-size: 13px;

  cursor: pointer;
}

.post_time {
  margin-top: 10px;
  font-size: 12px;
  font-weight: 750;
  color: rgba(0, 0, 0, 0.55);
}

/* ========== BOTTOM NAV ========== */
.nav_footer {
  position: fixed;
  bottom: 0;
  left: 0;

  width: 100%;
  height: 62px;

  background: white;
  border-top: 1px solid rgba(0, 0, 0, 0.15);

  display: flex;
  justify-content: space-around;
  align-items: center;

  z-index: 1000;
}

.nav_footer a {
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav_footer img {
  height: 38px;
  width: 38px;
  object-fit: contain;
  display: block;
}

#profile_nav {
  height: 42px;
  width: 42px;

  border-radius: 50%;
  border: 2px solid rgba(0, 0, 0, 0.25);

  overflow: hidden;
}

#profile_nav img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  display: block;
}

/* ========== DESKTOP CENTER ========== */
@media (min-width: 768px) {
  body {
    max-width: 440px;
    margin: 0 auto;

    border-left: 1px solid rgba(0, 0, 0, 0.12);
    border-right: 1px solid rgba(0, 0, 0, 0.12);
  }

  .nav_footer {
    max-width: 440px;
    left: 50%;
    transform: translateX(-50%);
  }

  .story_header {
    max-width: 440px;
    margin: 0 auto;
  }
}

/* ========== SMALL SCREEN SAFETY ========== */
@media (max-width: 360px) {
  .pw_main {
    height: 330px;
  }

  #like_btn,
  #comment_btn,
  #share_btn,
  #save_btn {
    height: 30px;
    width: 30px;
  }

  .nav_footer img {
    height: 34px;
    width: 34px;
  }
  #save_btn {
    height: 25px;
    width: 32px;
  }
}