/* ============================================
   Farhana Tabassum — Notion-style Portfolio
   ============================================ */

:root {
  --text: #37352f;
  --text-secondary: rgba(55, 53, 47, 0.65);
  --text-tertiary: rgba(55, 53, 47, 0.45);
  --bg: #ffffff;
  --bg-secondary: #f7f6f3;
  --bg-hover: rgba(55, 53, 47, 0.08);
  --border: rgba(55, 53, 47, 0.09);
  --border-strong: rgba(55, 53, 47, 0.16);

  --blue-bg: #ddebf1;
  --blue-text: #28456c;
  --purple-bg: #eae4f2;
  --purple-text: #522e7a;
  --green-bg: #dbeddb;
  --green-text: #2b5935;
  --gray-bg: #ebeced;
  --gray-text: #454545;
  --yellow-bg: #fbf3db;
  --yellow-text: #5c4b1a;
  --cover: linear-gradient(135deg, #e8e4df 0%, #ddebf1 50%, #eae4f2 100%);

  --font: 'Inter', ui-sans-serif, -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, sans-serif;
  --sidebar-width: 240px;
  --page-width: 900px;
  --mobile-header: 45px;
  --transition: 0.15s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--mobile-header) + 16px);
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

ul { list-style: none; }

strong { font-weight: 600; }

/* Layout */
.layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  z-index: 200;
  overflow-y: auto;
  transition: transform var(--transition);
}

.sidebar__inner {
  padding: 12px 8px 24px;
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
  transition: background var(--transition);
}

.sidebar__brand:hover {
  background: var(--bg-hover);
}

.sidebar__avatar {
  width: 22px;
  height: 22px;
  border-radius: 3px;
  object-fit: cover;
}

.sidebar__label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  padding: 8px 8px 4px;
  text-transform: none;
}

.sidebar__nav ul {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.sidebar__link {
  display: block;
  padding: 4px 8px;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: 4px;
  border-left: 2px solid transparent;
  transition: all var(--transition);
}

.sidebar__link:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.sidebar__link.active {
  color: var(--text);
  background: var(--bg-hover);
  border-left-color: var(--text);
  font-weight: 500;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 15, 15, 0.4);
  z-index: 150;
}

/* Mobile header */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--mobile-header);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  align-items: center;
  padding: 0 12px;
  gap: 12px;
  z-index: 100;
}

.mobile-header__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  border-radius: 4px;
  color: var(--text-secondary);
  cursor: pointer;
}

.mobile-header__toggle:hover {
  background: var(--bg-hover);
}

.mobile-header__title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

/* Page */
.page {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-width: 0;
}

.page__cover {
  height: 30vh;
  min-height: 180px;
  max-height: 280px;
  background: var(--cover);
}

.page__content {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 96px 96px;
}

/* Page header */
.page__header {
  position: relative;
  margin-top: -42px;
  padding-bottom: 8px;
}

.page__icon {
  width: 78px;
  height: 78px;
  border-radius: 4px;
  object-fit: cover;
  margin-bottom: 12px;
  box-shadow: 0 0 0 1px var(--border);
}

.page__title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 4px;
}

.page__subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.page__intro {
  font-size: 16px;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 680px;
}

/* Properties (Notion-style) */
.properties {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 20px;
}

.property {
  display: flex;
  align-items: baseline;
  gap: 8px;
  width: 100%;
  padding: 6px 0;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}

.property__label {
  min-width: 120px;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.property__value {
  color: var(--text);
}

.property__value--link {
  color: var(--blue-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.property__value--link:hover {
  opacity: 0.8;
}

.page__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  background: var(--text);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity var(--transition);
}

.btn:hover {
  opacity: 0.85;
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}

.btn--ghost:hover {
  background: var(--bg-hover);
  opacity: 1;
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* Blocks */
.block {
  margin-bottom: 4px;
}

.block__heading {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.875rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  padding: 3px 0;
}

.block__emoji {
  font-size: 1.5rem;
  line-height: 1;
}

.block__caption {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.block__body p {
  margin-bottom: 12px;
  line-height: 1.7;
}

.block__body p:last-of-type {
  margin-bottom: 16px;
}

/* Bullet list */
.bullet-list {
  padding-left: 0;
}

.bullet-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 4px;
  line-height: 1.7;
}

.bullet-list li::before {
  content: '•';
  position: absolute;
  left: 4px;
  color: var(--text);
}

.bullet-list--compact li {
  font-size: 14px;
  margin-bottom: 2px;
}

/* Database table */
.database {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  font-size: 14px;
}

.database__row {
  display: grid;
  grid-template-columns: 80px 1fr 1.4fr;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.database__row:last-child {
  border-bottom: none;
}

.database__row--head {
  background: var(--bg-secondary);
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.database__row--head span:first-child {
  padding-left: 0;
}

.database__row--highlight {
  background: var(--blue-bg);
}

.database__row:not(.database__row--head):hover {
  background: var(--bg-hover);
}

/* Tags */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  background: var(--gray-bg);
  color: var(--gray-text);
  width: fit-content;
}

.tag--blue {
  background: var(--blue-bg);
  color: var(--blue-text);
}

.tag--purple {
  background: var(--purple-bg);
  color: var(--purple-text);
}

.tag--green {
  background: var(--green-bg);
  color: var(--green-text);
}

/* Callout */
.callout {
  background: var(--yellow-bg);
  border-radius: 4px;
  padding: 16px 16px 16px 20px;
  border-left: 3px solid #e8c547;
}

.callout__title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
}

.callout__meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.callout p {
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 12px;
}

/* Pills */
.pill-row {
  display: flex;
  gap: 6px;
  flex-wrap: nowrap;
}

.pill-row--wrap {
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-block;
  padding: 2px 8px;
  font-size: 13px;
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.pill--color {
  background: var(--blue-bg);
  color: var(--blue-text);
  border-color: transparent;
}

/* Columns */
.columns {
  display: grid;
  gap: 8px;
}

.columns--2 {
  grid-template-columns: repeat(2, 1fr);
}

.columns--3 {
  grid-template-columns: repeat(3, 1fr);
}

.column-card {
  padding: 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
  transition: background var(--transition);
}

.column-card:hover {
  background: var(--bg-hover);
}

.column-card__icon {
  font-size: 20px;
  display: block;
  margin-bottom: 6px;
}

.column-card strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}

.column-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Toggle block (skills) */
.toggle-block {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.toggle-block__header {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 600;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.toggle-block .bullet-list {
  padding: 8px 12px 12px;
}

/* Quote */
.quote {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  padding: 16px 20px;
  border-left: 3px solid var(--border-strong);
  background: var(--bg-secondary);
  border-radius: 0 4px 4px 0;
  font-style: normal;
}

/* Contact card */
.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-secondary);
}

.contact-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}

.contact-card__info {
  flex: 1;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-card__info strong {
  font-size: 15px;
}

.contact-card__info span {
  font-size: 13px;
  color: var(--text-secondary);
}

.contact-card__info a {
  font-size: 14px;
  color: var(--blue-text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Footer */
.page__footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.page__footer p {
  font-size: 12px;
  color: var(--text-tertiary);
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .page__content {
    padding: 0 48px 64px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.visible {
    display: block;
  }

  .mobile-header {
    display: flex;
  }

  .page {
    margin-left: 0;
    padding-top: var(--mobile-header);
  }

  .page__content {
    padding: 0 24px 48px;
  }

  .page__title {
    font-size: 32px;
  }

  .page__cover {
    height: 20vh;
    min-height: 120px;
  }

  .columns--2,
  .columns--3 {
    grid-template-columns: 1fr;
  }

  .database__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .database__row--head {
    display: none;
  }

  .database__row:not(.database__row--head) span:nth-child(2) {
    font-weight: 600;
  }

  .database__row:not(.database__row--head) span:nth-child(3) {
    font-size: 13px;
    color: var(--text-secondary);
  }

  .property__label {
    min-width: 80px;
  }

  .contact-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-card .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .page__content {
    padding: 0 16px 40px;
  }

  .page__title {
    font-size: 28px;
  }

  .block__heading {
    font-size: 1.5rem;
  }
}

@media (min-width: 769px) {
  html {
    scroll-padding-top: 24px;
  }
}