@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=Roboto+Slab:wght@100..900&family=Baloo+Da+2:wght@400..800&display=swap');

:root {
  --font-sans: "Inter", "Baloo Da 2", sans-serif;
  --font-heading: "Roboto Slab", serif;

  --text-sm: 14px;
  --text-base: 18px;
  --text-lg: 20px;

  --heading-xl: 40px;
  --heading-lg: 32px;
  --heading-md: 22px;

  --leading-tight: 1.2;
  --leading-body: 1.6;

  --color-navy: #000d35;
  --color-navy-alt: #000435;
  --color-accent: #06b6d4;

  --bg-page: #ffffff;
  --bg-card: #ffffff;
  --bg-card-alt: #c9e9f6;
  --bg-navbar: rgba(255, 255, 255, 0.35);
  --bg-navbar-mobile: rgba(255, 255, 255, 0.55);
  --bg-glass: rgba(255, 255, 255, 0.35);
  --bg-glass-hover: rgba(255, 255, 255, 0.5);
  --border-glass: rgba(255, 255, 255, 0.4);
  --text-primary: #000d35;
  --text-body: #333333;
  --text-muted: #888888;
  --input-bg: #f8f9fa;
  --input-border: #e0e0e0;
  --glow-opacity: 0.3;
  --shadow-color: rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] {
  --color-navy: #e8ecf7;
  --color-navy-alt: #dfe4f0;
  --color-accent: #22d3ee;

  --bg-page: #0b1120;
  --bg-card: #131a2c;
  --bg-card-alt: #16233a;
  --bg-navbar: rgba(19, 26, 44, 0.55);
  --bg-navbar-mobile: rgba(19, 26, 44, 0.75);
  --bg-glass: rgba(255, 255, 255, 0.08);
  --bg-glass-hover: rgba(255, 255, 255, 0.14);
  --border-glass: rgba(255, 255, 255, 0.12);
  --text-primary: #e8ecf7;
  --text-body: #b8c0d4;
  --text-muted: #7c8aa8;
  --input-bg: #1a2338;
  --input-border: #2a3550;
  --glow-opacity: 0.18;
  --shadow-color: rgba(0, 0, 0, 0.35);
}

html, body {
  height: auto;
  min-height: 100%;
}

::-moz-selection {
  color: #ffffff;
  background: #0096FF;
}

::selection {
  color: #ffffff;
  background: #0096FF;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  background-image:
    radial-gradient(ellipse 60% 30% at 50% 0%, rgba(6, 182, 212, var(--glow-opacity)), transparent 70%),
    radial-gradient(ellipse 60% 30% at 50% 100%, rgba(6, 182, 212, var(--glow-opacity)), transparent 70%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease;
}

h1 {
  font-size: var(--heading-xl);
  line-height: var(--leading-tight);
  margin: 0;
}
section {
  margin: 2rem 0;
  padding: 0 1rem;
  text-align: justify;
}

h2 {
  line-height: var(--leading-tight);
  font-size: var(--heading-lg);
}

p {
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--text-body);
}

h1,
h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  background: linear-gradient(-225deg, #2cd8d5 0%, #6b8dd6 48%, #8e37d7 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-primary);
}
i,
b {
  font-weight: 800;
  margin: 5px;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: var(--bg-navbar);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.wordmark {
  width: auto;
  height: 40px;
  display: block;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--bg-glass);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 16px;
  transition: background 0.25s ease, transform 0.2s ease;
}

.theme-toggle:hover {
  background: var(--bg-glass-hover);
  transform: scale(1.08);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background: var(--color-navy);
  border-radius: 3px;
  transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--color-navy);
  text-decoration: none;
  padding: 6px 10px;
  transition: opacity 0.2s ease, color 0.3s ease;
}

.nav-links a:hover {
  opacity: 0.9;
  text-decoration: none;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    gap: 0;
    background: var(--bg-navbar-mobile);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s ease, opacity 0.3s ease, background 0.3s ease;
  }

  .nav-links.open {
    max-height: 300px;
    opacity: 1;
  }

  .nav-links li {
    width: 100%;
    text-align: center;
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
  }
}

svg {
  fill: var(--color-navy-alt);
}
.copy-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  vertical-align: middle;
  margin-left: 3px;
  padding: 2px;
  color: var(--color-navy);
}
.copy-btn:hover {
  opacity: 0.7;
}
.icon-copied {
  color: var(--color-accent);
}

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

a:hover {
  text-decoration: underline;
}

img {
  pointer-events: none;
  user-drag: none;
  -webkit-user-drag: none;
}
hr {
  border-top: 2px dashed var(--color-navy-alt);
}
#main-box {
  position: relative;
  width: 100%;
  height: 200px;
  border: none;
}
#second-box {
  text-align: center;
  font-size: var(--text-base);
  background-color: var(--bg-card-alt);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  color: var(--text-primary);
  border: none;
  border-radius: 15px;
  margin: 15px auto;
  margin-bottom: 10px;
  padding: 15px;
  width: 300px;
  transition: background-color 0.3s ease, color 0.3s ease;
}
#title {
  text-align: center;
  margin: 10px 0;
  font-size: var(--heading-md);
  color: var(--text-primary);
}
#ipa {
  text-align: center;
  margin: 0 0 15px 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-left: 5px;
}
#about {
  box-shadow: 0 0 15px var(--shadow-color);
  text-align: center;
  background-color: var(--bg-card);
  border-radius: 15px;
  max-width: 400px;
  width: 90%;
  margin: 40px auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

#about:hover {
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
}

#cover {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -80%);
  width: 100%;
  height: auto;
  object-fit: cover;
  z-index: 1;
  margin-top: 10px;
  margin-bottom: 10px;
  border: 1px dotted #000000;
  border-radius: 5px;
}
#logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -20%);
  width: 100px;
  height: auto;
  border-radius: 50%;
  z-index: 2;
  margin-top: 10px;
  margin-bottom: 10px;
  border: 2px solid #FFF;
}
#copyright {
  font-size: var(--text-sm);
  opacity: 0.6;
  color: var(--text-body);
}
.contact-wrap {
  max-width: 500px;
  width: 90%;
  margin: 10px auto 40px auto;
  border: none;
}
.contact-toggle {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  border-radius: 15px;
  box-shadow: 0 0 15px var(--shadow-color);
  padding: 12px 20px;
  cursor: pointer;
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--text-primary);
  transition: border-radius 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.contact-toggle.open {
  border-radius: 15px 20px 0 0;
}

.toggle-icon {
  font-size: var(--text-sm);
  color: var(--text-primary);
  transition: transform 0.3s ease, color 0.3s ease;
  line-height: 1;
}

.contact-toggle.open .toggle-icon {
  transform: rotate(180deg);
}

.contact-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, background-color 0.3s ease;
  background: var(--bg-card);
  border-radius: 0 0 15px 20px;
  margin-bottom: 10px;
  border: none;
}

.contact-panel.open {
  max-height: 800px;
}

.container {
  padding: 25px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-body);
  font-weight: 500;
  font-size: var(--text-sm);
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--input-border);
  border-radius: 8px;
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  transition: all 0.3s ease;
  background: var(--input-bg);
  color: var(--text-primary);
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--bg-card);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.honeypot-1 {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: var(--color-navy);
  color: var(--bg-page);
  border: none;
  border-radius: 8px;
  font-size: var(--text-lg);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 13, 53, 0.4);
}

button[type="submit"]:active {
  transform: translateY(0);
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.message {
  margin-top: 20px;
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
  display: none;
}

.message.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.message.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.message.show {
  display: block;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
#intro-head,
#intro-main {
  position: relative;
  z-index: 1;
}
.required {
  color: #e74c3c;
}
.social-icons {
  display: flex;
  gap: 10px;
  margin: 40px 0 10px 0;
}
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-navy);
  border-radius: 10px;
  color: var(--bg-page);
  font-size: var(--text-lg);
  text-decoration: none;
  transition: background 0.25s ease, transform 0.2s ease;
}

.icon-btn:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
  text-decoration: none;
}
.email-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 8px 14px;
  color: var(--text-primary);
  font-size: var(--text-sm);
  transition: background 0.25s ease, transform 0.2s ease, color 0.3s ease;
}

.email-box:hover {
  background: var(--bg-glass-hover);
  transform: translateY(-2px);
}

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

.email-box .copy-btn {
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
}
.profile-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 10px 0;
  font-size: var(--text-sm);
}

.profile-row a {
  color: var(--text-primary);
}

.profile-row img {
  width: 25px;
  height: 25px;
  vertical-align: middle;
  margin-right: 4px;
}