/* Google Font */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap");

/* CSS Variables */
:root {
  --white: #ffffff;
  --black: #111817;

  --text-light: #eef7f5;
  --text-dark: #12201e;
  --text-muted: #5e706c;

  --primary: #226c5e;
  --primary-dark: #174e44;
  --primary-light: #dff4ef;

  --danger: #b42318;
  --success: #176b45;

  --glass-background: rgba(255, 255, 255, 0.86);
  --header-background: rgba(9, 30, 27, 0.32);
  --overlay-background: rgba(4, 18, 16, 0.68);

  --border-light: rgba(255, 255, 255, 0.45);
  --border-dark: rgba(18, 32, 30, 0.2);

  --shadow-small: 0 8px 24px rgba(0, 0, 0, 0.14);
  --shadow-large: 0 24px 70px rgba(0, 0, 0, 0.32);

  --radius-small: 8px;
  --radius-medium: 14px;
  --radius-large: 24px;

  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body,
button,
input {
  font-family: "Poppins", sans-serif;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  color: var(--white);

  background:
    linear-gradient(rgba(6, 24, 21, 0.46), rgba(6, 24, 21, 0.72)),
    url("./calming-nature-wallpaper-picjumbo-com.jpeg") center / cover no-repeat
      fixed;
}

body.modal-open {
  overflow: hidden;
}

button,
a,
input {
  -webkit-tap-highlight-color: transparent;
}

button {
  border: none;
}

a {
  color: inherit;
}

button,
a {
  outline: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(210, 255, 240, 0.9);
  outline-offset: 3px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;

  width: 100%;
  min-height: 82px;
  padding: 16px clamp(24px, 7vw, 110px);

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

  background-color: var(--header-background);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);

  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.logo {
  color: var(--white);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.5px;
  user-select: none;
}

/* Navigation */
.navigation {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 38px);
}

.navigation a {
  position: relative;
  color: var(--white);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
}

.navigation a::after {
  content: "";

  position: absolute;
  left: 0;
  bottom: -7px;

  width: 100%;
  height: 2px;

  background-color: var(--white);
  border-radius: 999px;

  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

.navigation a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.btn-login-popup,
.hero-login-button {
  min-height: 46px;
  padding: 0 28px;

  color: var(--white);
  font-size: 1rem;
  font-weight: 600;

  background-color: transparent;
  border: 1px solid var(--white);
  border-radius: var(--radius-small);

  cursor: pointer;
  transition:
    color var(--transition),
    background-color var(--transition),
    transform var(--transition);
}

.btn-login-popup:hover,
.hero-login-button:hover {
  color: var(--text-dark);
  background-color: var(--white);
  transform: translateY(-2px);
}

/* Mobile Menu Button */
.nav-toggle {
  display: none;

  width: 46px;
  height: 46px;

  place-content: center;
  gap: 5px;

  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-small);

  cursor: pointer;
}

.nav-toggle span {
  display: block;

  width: 23px;
  height: 2px;

  background-color: var(--white);
  border-radius: 999px;

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

.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

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

/* Hero */
.hero {
  min-height: 100vh;
  min-height: 100svh;

  padding: 130px clamp(24px, 7vw, 110px) 60px;

  display: flex;
  align-items: center;
}

.hero-content {
  width: min(680px, 100%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;

  margin-bottom: 18px;
  padding: 8px 16px;

  color: var(--white);
  font-size: 0.86rem;
  font-weight: 600;

  background-color: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.36);
  border-radius: 999px;

  backdrop-filter: blur(10px);
}

.hero h1 {
  max-width: 650px;
  margin-bottom: 20px;

  font-size: clamp(2.3rem, 6vw, 5rem);
  line-height: 1.08;
  letter-spacing: -2px;
}

.hero p {
  max-width: 590px;
  margin-bottom: 32px;

  color: rgba(255, 255, 255, 0.85);
  font-size: clamp(1rem, 2vw, 1.15rem);
  line-height: 1.8;
}

.hero-login-button {
  min-height: 52px;
  padding-inline: 34px;

  background-color: rgba(255, 255, 255, 0.1);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;

  padding: 16px;

  display: grid;
  place-items: center;

  background-color: var(--overlay-background);

  opacity: 0;
  visibility: hidden;
  pointer-events: none;

  transition:
    opacity 0.25s ease,
    visibility 0.25s ease;

  overflow-y: auto;
}

.modal-overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Authentication Modal */
.auth-modal {
  position: relative;

  width: min(440px, 100%);
  max-height: calc(100svh - 32px);
  padding: 42px 38px 32px;

  color: var(--text-dark);

  background-color: var(--glass-background);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-large);

  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);

  overflow-y: auto;

  opacity: 0;
  transform: translateY(25px) scale(0.96);

  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}

.modal-overlay.is-open .auth-modal {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Close Button */
.modal-close {
  position: absolute;
  top: 0;
  right: 0;

  width: 50px;
  height: 50px;

  display: grid;
  place-items: center;

  color: var(--white);
  font-size: 1.75rem;

  background-color: var(--text-dark);
  border-bottom-left-radius: 20px;
  border-top-right-radius: var(--radius-large);

  cursor: pointer;

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

.modal-close:hover {
  background-color: var(--primary);
}

.modal-close:active {
  transform: scale(0.94);
}

/* Forms */
.form-box {
  display: none;
}

.form-box.is-active {
  display: block;
  animation: form-enter 0.35s ease both;
}

.form-box[hidden] {
  display: none;
}

@keyframes form-enter {
  from {
    opacity: 0;
    transform: translateX(22px);
  }

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

.form-box h2 {
  margin-bottom: 8px;

  color: var(--text-dark);
  font-size: clamp(1.8rem, 5vw, 2.2rem);
  text-align: center;
}

.form-description {
  margin-bottom: 28px;

  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  text-align: center;
}

/* Input Fields */
.input-box {
  position: relative;
  width: 100%;
  height: 56px;
  margin-bottom: 25px;

  border-bottom: 2px solid rgba(18, 32, 30, 0.42);
}

.input-box input {
  width: 100%;
  height: 100%;

  padding: 14px 44px 0 40px;

  color: var(--text-dark);
  font-size: 1rem;
  font-weight: 500;

  background-color: transparent;
  border: none;
  outline: none;
}

.input-box label {
  position: absolute;
  top: 50%;
  left: 40px;

  color: var(--text-muted);
  font-size: 0.96rem;
  font-weight: 500;

  pointer-events: none;

  transform: translateY(-50%);
  transform-origin: left;

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

.input-box input:focus ~ label,
.input-box input:not(:placeholder-shown) ~ label {
  top: 8px;
  color: var(--primary);
  transform: translateY(-50%) scale(0.78);
}

.input-box:focus-within {
  border-bottom-color: var(--primary);
}

.input-icon {
  position: absolute;
  left: 7px;
  top: 50%;

  display: grid;
  place-items: center;

  color: var(--text-dark);
  font-size: 1.25rem;

  transform: translateY(-50%);
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 4px;

  width: 38px;
  height: 38px;

  display: grid;
  place-items: center;

  color: var(--text-dark);
  font-size: 1.22rem;

  background-color: transparent;
  border-radius: 50%;

  cursor: pointer;
  transform: translateY(-50%);

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

.password-toggle:hover {
  color: var(--primary);
  background-color: rgba(34, 108, 94, 0.1);
}

/* Checkbox / Links */
.remember-forgot {
  margin: -4px 0 20px;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;

  color: var(--text-dark);
  font-size: 0.86rem;
}

.terms-box {
  margin: -3px 0 20px;

  color: var(--text-dark);
  font-size: 0.86rem;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;

  cursor: pointer;
}

.checkbox-label input {
  width: 16px;
  height: 16px;

  accent-color: var(--primary);
  cursor: pointer;
}

.remember-forgot a,
.form-switch a {
  color: var(--primary-dark);
  font-weight: 600;
  text-decoration: none;
}

.remember-forgot a:hover,
.form-switch a:hover {
  text-decoration: underline;
}

/* Submit Button */
.submit-button {
  width: 100%;
  min-height: 48px;

  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.4px;

  background-color: var(--text-dark);
  border-radius: var(--radius-small);
  box-shadow: var(--shadow-small);

  cursor: pointer;

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

.submit-button:hover {
  background-color: var(--primary-dark);
  box-shadow: 0 12px 28px rgba(23, 78, 68, 0.28);
  transform: translateY(-2px);
}

.submit-button:active {
  transform: translateY(0);
}

/* Form Switch */
.form-switch {
  margin-top: 23px;

  color: var(--text-dark);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;
}

/* Form Message */
.form-message {
  display: none;

  margin-top: 18px;
  padding: 11px 14px;

  color: var(--success);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: center;

  background-color: rgba(23, 107, 69, 0.1);
  border: 1px solid rgba(23, 107, 69, 0.22);
  border-radius: var(--radius-small);
}

.form-message.is-visible {
  display: block;
}

/* Tablet / Mobile */
@media screen and (max-width: 820px) {
  .site-header {
    min-height: 72px;
    padding: 13px 5vw;
  }

  .nav-toggle {
    display: grid;
  }

  .navigation {
    position: absolute;
    top: calc(100% + 12px);
    right: 5vw;

    width: min(310px, 90vw);
    padding: 22px;

    flex-direction: column;
    align-items: stretch;
    gap: 8px;

    background-color: rgba(12, 39, 35, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-large);

    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transform: translateY(-12px);

    transition:
      opacity var(--transition),
      visibility var(--transition),
      transform var(--transition);
  }

  .navigation.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;

    transform: translateY(0);
  }

  .navigation a {
    padding: 12px 14px;

    border-radius: var(--radius-small);
  }

  .navigation a:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }

  .navigation a::after {
    display: none;
  }

  .btn-login-popup {
    width: 100%;
    margin-top: 8px;
  }

  .hero {
    padding: 120px 7vw 50px;
  }

  .hero-content {
    text-align: center;
  }

  .hero p {
    margin-inline: auto;
  }

  .hero h1 {
    letter-spacing: -1px;
  }
}

/* Small Mobile Screens */
@media screen and (max-width: 480px) {
  .modal-overlay {
    padding: 10px;
    align-items: center;
  }

  .auth-modal {
    max-height: calc(100svh - 20px);
    padding: 40px 20px 26px;

    border-radius: 18px;
  }

  .modal-close {
    width: 46px;
    height: 46px;

    border-top-right-radius: 18px;
  }

  .form-description {
    margin-bottom: 22px;
  }

  .input-box {
    margin-bottom: 21px;
  }

  .remember-forgot {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .hero h1 {
    font-size: clamp(2.1rem, 12vw, 3.3rem);
  }
}

/* Short Screens */
@media screen and (max-height: 650px) {
  .modal-overlay {
    align-items: start;
  }

  .auth-modal {
    margin-block: 10px;
  }

  .hero {
    align-items: flex-start;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}