/* ========================================
   CSS VARIABLES - Color Palette
   ======================================== */
:root {
  --color-white: #ffffff;
  --color-light-gray: #d4d4d4;
  --color-medium-gray: #b3b3b3;
  --color-dark-gray: #2b2b2b;

  /* Typography */
  --font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.6;

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

  /* Borders & Shadows */
  --border-radius: 12px;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --box-shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1),
    0 4px 6px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-dark-gray);
  background: linear-gradient(
    135deg,
    var(--color-light-gray) 0%,
    var(--color-white) 100%
  );
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========================================
   PROFILE CARD - MAIN CONTAINER
   ======================================== */
.profile-card {
  background-color: var(--color-white);
  box-shadow: var(--box-shadow);
  max-width: 900px;
  width: 100%;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.profile-card:hover {
  box-shadow: var(--box-shadow-hover);
}

/* ========================================
   AVATAR SECTION
   ======================================== */
.profile-card__avatar-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-lg);
  background: linear-gradient(
    135deg,
    var(--color-medium-gray) 0%,
    var(--color-light-gray) 100%
  );
}

.profile-card__avatar {
  width: 190px;
  height: 190px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--color-white);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.profile-card__avatar:hover {
  transform: scale(1.05);
}

/* ========================================
   CONTENT SECTION
   ======================================== */
.profile-card__content {
  padding: var(--spacing-sm);
  flex: 1;
}

/* Header (Name + Time) */
.profile-card__header {
  margin-bottom: var(--spacing-md);
}

.profile-card__name {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-xs);
  line-height: 1.2;
}

.profile-card__time {
  font-size: 0.875rem;
  color: var(--color-medium-gray);
  font-family: "Courier New", monospace;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.profile-card__time-label {
  font-weight: 600;
}

/* Bio */
.profile-card__bio {
  font-size: 1rem;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

/* Section Title */
.profile-card__section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ========================================
   SOCIAL LINKS
   ======================================== */
.profile-card__social {
  margin-bottom: var(--spacing-lg);
}

.profile-card__social-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.profile-card__social-list a {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--color-dark-gray);
  color: var(--color-white);
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.profile-card__social-list a::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background-color: var(--color-medium-gray);
  transition: left 0.3s ease;
  z-index: -1;
}

.profile-card__social-list a:hover::before {
  left: 0;
}

.profile-card__social-list a:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.profile-card__social-list a:focus {
  outline: 3px solid var(--color-medium-gray);
  outline-offset: 2px;
}

/* ========================================
   DETAILS SECTION (Hobbies & Dislikes)
   ======================================== */
.profile-card__details {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

.profile-card__section {
  background-color: rgba(212, 212, 212, 0.2);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 4px solid var(--color-medium-gray);
}

.profile-card__list {
  list-style: none;
  padding-left: 0;
}

.profile-card__list li {
  padding: var(--spacing-xs) 0;
  color: var(--color-dark-gray);
  position: relative;
  padding-left: var(--spacing-md);
}

.profile-card__list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-medium-gray);
  font-weight: bold;
}

/* ========================================
   RESPONSIVE DESIGN - TABLET & DESKTOP
   ======================================== */

/* Tablet (768px and up) */
@media (min-width: 768px) {
  .profile-card {
    flex-direction: row;
    border-radius: var(--border-radius);
  }

  .profile-card__avatar-container {
    flex-shrink: 0;
    width: 280px;
    padding: var(--spacing-xl);
  }

  .profile-card__avatar {
    width: 180px;
    height: 180px;
  }

  .profile-card__content {
    padding: var(--spacing-xl);
  }
}

@media (min-width: 915px) {
  .profile-card__details {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
  .profile-card__name {
    font-size: 2rem;
  }

  .profile-card__bio {
    font-size: 1.125rem;
  }

  .profile-card__avatar {
    width: 200px;
    height: 200px;
  }
}

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

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-medium-gray);
  outline-offset: 2px;
}

/* Reduced motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .profile-card {
    border: 2px solid var(--color-dark-gray);
  }

  .profile-card__social-list a {
    border: 2px solid var(--color-white);
  }
}

/* Print styles */
@media print {
  body {
    background: var(--color-white);
  }

  .profile-card {
    box-shadow: none;
    border: 1px solid var(--color-dark-gray);
  }
}

/* ========================================
   NAVIGATION BAR
   ======================================== */
.main-nav {
  background-color: var(--color-dark-gray);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin: 0;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--spacing-xs);
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-md);
  color: var(--color-light-gray);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.nav-links a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
}

.nav-links a.active {
  background-color: var(--color-medium-gray);
  color: var(--color-dark-gray);
}

.nav-links a:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

/* ========================================
   PAGE CONTAINER & LAYOUT
   ======================================== */
.page-container {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-card {
  background-color: var(--color-white);
  /* border-radius: var(--border-radius); */
  box-shadow: var(--box-shadow);
  padding: var(--spacing-xl);
  width: 100%;
  max-width: 900px;
}

.page-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-light-gray);
}

.page-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-sm);
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--color-medium-gray);
  margin: 0;
}

/* ========================================
   FOOTER
   ======================================== */
.main-footer {
  background-color: var(--color-dark-gray);
  color: var(--color-light-gray);
  text-align: center;
  padding: var(--spacing-md);
  margin-top: auto;
}

.main-footer p {
  margin: 0;
  font-size: 0.875rem;
}

/* ========================================
   CONTACT FORM STYLES
   ======================================== */
.contact-form {
  max-width: 700px;
  margin: 0 auto;
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-xs);
  font-size: 1rem;
}

.required {
  color: #d32f2f;
  font-weight: bold;
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--color-light-gray);
  border-radius: 8px;
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--color-dark-gray);
  transition: all 0.3s ease;
  background-color: var(--color-white);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-medium-gray);
  box-shadow: 0 0 0 3px rgba(179, 179, 179, 0.1);
}

.form-input::placeholder {
  color: var(--color-medium-gray);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-family);
}

.form-input.error {
  border-color: #d32f2f;
}

.error-message {
  color: #d32f2f;
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  min-height: 1.25rem;
  display: block;
}

.success-message {
  background-color: #4caf50;
  color: var(--color-white);
  padding: var(--spacing-md);
  border-radius: 8px;
  margin-bottom: var(--spacing-md);
  font-weight: 500;
  display: none;
}

.success-message.show {
  display: block;
}

.form-submit {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-dark-gray);
  color: var(--color-white);
  border: none;
  border-radius: 8px;
  font-size: 1.125rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-family);
}

.form-submit:hover {
  background-color: var(--color-medium-gray);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

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

.form-submit:focus-visible {
  outline: 3px solid var(--color-medium-gray);
  outline-offset: 2px;
}

.required {
  color: red;
  font-weight: bold;
  transition: all 0.3s ease;
}

.required.valid {
  color: green;
  content: "✔";
}

.required.valid {
  animation: pop 0.3s ease;
}

@keyframes pop {
  0% {
    transform: scale(0.8);
    opacity: 0.5;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* ========================================
   ABOUT PAGE STYLES
   ======================================== */
.about-section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-light-gray);
}

.about-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.about-section-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.about-content {
  color: var(--color-dark-gray);
  line-height: 1.8;
}

.about-content p {
  margin-bottom: var(--spacing-md);
}

.about-content p:last-child {
  margin-bottom: 0;
}

.about-list {
  list-style: none;
  padding-left: 0;
}

.about-list li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  line-height: 1.7;
}

.about-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-medium-gray);
  font-weight: bold;
  font-size: 1.2rem;
}

.about-list li strong {
  color: var(--color-dark-gray);
}

.highlight-section {
  background: linear-gradient(
    135deg,
    rgba(212, 212, 212, 0.2) 0%,
    rgba(179, 179, 179, 0.1) 100%
  );
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--color-medium-gray);
  border-bottom: none;
}

.future-note {
  font-style: italic;
  color: var(--color-dark-gray);
  padding: var(--spacing-md);
  margin: 0;
  line-height: 1.9;
}

.future-note p {
  margin-bottom: var(--spacing-md);
}

.signature {
  text-align: right;
  font-weight: 600;
  margin-top: var(--spacing-lg);
  font-style: normal;
}

/* ========================================
   RESPONSIVE ADJUSTMENTS FOR NAVIGATION
   ======================================== */
@media (max-width: 767px) {
  .nav-container {
    flex-direction: column;
    text-align: center;
  }

  .nav-links {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .page-header h2 {
    font-size: 2rem;
  }

  .page-subtitle {
    font-size: 1rem;
  }

  .content-card,
  .highlight-section {
    padding: var(--spacing-sm);
  }
}

@media (min-width: 768px) {
  .page-container--home {
    padding: var(--spacing-lg) var(--spacing-md);
  }
}

@media (min-width: 904px) {
  .page-container {
    margin-top: 20px;
    margin-bottom: 20px;
  }

  .content-card {
    border-radius: var(--border-radius);
  }
}