/* Table of Contents
1.  :root Variables & Global Resets
2.  Accessibility & Utility Classes
3.  Typography
4.  Layout (Header, Footer, Container)
5.  Components (Buttons, Cards, Forms, Modals, Pills)
6.  Page-Specific Styles (Hero, Bio, Portfolio, Pitch)
7.  Animations & Transitions
8.  Responsive Media Queries
*/

/* 1. :root Variables & Global Resets */
:root {
  --brown: #2B1D13;
  --khaki: #C3B091;
  --cream: #F7F3E9;
  --charcoal: #272726;
  --copper: #B87333;
  --radius: 8px;
  --shadow: 0 10px 25px rgba(0, 0, 0, .08);
  --font-heading: "Georgia", "Times New Roman", serif;
  --font-body: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --transition-fast: 0.2s ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Offset for sticky header */
}

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--charcoal);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  animation: fadeIn 0.8s ease-out;
}

body.modal-open {
    overflow: hidden;
}

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

/* 2. Accessibility & Utility Classes */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--brown);
  color: white;
  padding: 8px;
  z-index: 100;
  transition: top 0.3s;
}
.skip-link:focus {
  top: 0;
}

/* 3. Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--brown);
  line-height: 1.2;
  margin-bottom: 0.75rem;
}
h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: 1.5rem; }
p { margin-bottom: 1rem; max-width: 70ch; }
a { color: var(--copper); text-decoration: none; }
a:hover { text-decoration: underline; }

.section-title, .page-title {
    text-align: center;
    margin-bottom: 2rem;
}
.page-subtitle {
    text-align: center;
    max-width: 60ch;
    margin: -1rem auto 2rem;
    font-size: 1.1rem;
}
.text-center {
    text-align: center;
}

/* 4. Layout */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(247, 243, 233, 0.8);
  backdrop-filter: blur(10px);
  padding: 1rem 0;
  z-index: 10;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-family: var(--font-heading);
  font-weight: bold;
  font-size: 1.5rem;
  color: var(--brown);
}
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.main-nav .nav-link {
  color: var(--charcoal);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}
.main-nav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--copper);
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after {
  transform: scaleX(1);
}

section {
  padding: 4rem 0;
}

.site-footer {
    background-color: #e9e4d9;
    padding: 3rem 0 1.5rem;
    border-top: 1px solid rgba(0,0,0,0.08);
}
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-bottom { text-align: center; font-size: 0.9rem; color: #555; }

/* 5. Components */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: bold;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-primary {
  background-color: var(--brown);
  color: var(--cream);
}
.btn-primary:hover {
  background-color: #4a3424;
  transform: translateY(-2px);
}
.btn-secondary {
  background-color: transparent;
  color: var(--brown);
  border-color: var(--khaki);
}
.btn-secondary:hover {
  background-color: var(--khaki);
  color: var(--brown);
}
.btn:focus-visible {
    outline: 3px solid var(--copper);
    outline-offset: 2px;
}

.card {
  background: var(--cream);
  border: 1px solid var(--khaki);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
  color: var(--charcoal);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0,0,0,.12);
}
.card h3 {
    color: var(--brown);
}
.card-link {
  margin-top: auto;
  font-weight: bold;
  color: var(--copper);
  align-self: flex-start;
}
.card-link::after {
    content: ' \2192';
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-pill {
    display: inline-block;
    background-color: var(--khaki);
    color: var(--brown);
    padding: 0.5rem 1rem;
    border-radius: 99px;
    font-size: 0.9rem;
    font-weight: 500;
}
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

#contact-form .form-group { margin-bottom: 1rem; }
#contact-form label { display: block; margin-bottom: 0.25rem; font-weight: 500; }
#contact-form input, #contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: var(--radius);
    border: 1px solid var(--khaki);
    background: var(--cream);
}
#contact-form input:focus, #contact-form textarea:focus {
    outline: 2px solid var(--copper);
    border-color: var(--copper);
}

.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}
.modal.is-open {
    opacity: 1;
    visibility: visible;
}
.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    cursor: pointer;
}
.modal-content {
    position: relative;
    background: var(--cream);
    padding: 2rem;
    border-radius: var(--radius);
    width: 90%;
    max-width: 600px;
    z-index: 101;
    animation: slideUp 0.4s ease-out;
}
.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--charcoal);
}
.modal-content ul {
    list-style-position: inside;
    margin-top: 1rem;
}
#back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--brown);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--shadow);
    z-index: 5;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
}
#back-to-top.visible {
    opacity: 1;
}

#toast-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
}
.toast {
    background-color: var(--brown);
    color: var(--cream);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    animation: toastPop 0.3s ease-out forwards;
    opacity: 0;
}

/* 6. Page-Specific Styles */
.hero {
  text-align: center;
  padding: 6rem 0;
}
.hero-tagline {
  font-size: 1.25rem;
  color: var(--charcoal);
  margin: auto;
  margin-bottom: 1rem;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
}
.project-card .card-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16/10;
    object-fit: cover;
    border-radius: var(--radius) var(--radius) 0 0;
    /* margin: -1.5rem -1.5rem 1.5rem -1.5rem; */
    margin: auto;
}
.bio-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}
.bio-image img {
    border-radius: var(--radius);
    filter: sepia(0.3);
}
.bio-facts {
    grid-column: 1 / -1;
    background: #e9e4d9;
    padding: 1.5rem;
    border-radius: var(--radius);
}
.bio-facts ul {
    list-style: none;
}

.timeline {
    position: relative;
    max-width: 700px;
    margin: 2rem auto;
}
.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background-color: var(--khaki);
    top: 0;
    bottom: 0;
    left: 20px;
}
.timeline-item {
    padding: 10px 40px 30px 60px;
    position: relative;
}
.timeline-dot {
    position: absolute;
    left: 10px;
    top: 15px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--brown);
    border: 3px solid var(--cream);
    z-index: 1;
}
.timeline-date {
    font-style: italic;
    color: var(--copper);
}

.filter-controls {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}
.filter-btn {
    background: transparent;
    border: 1px solid var(--khaki);
    color: var(--charcoal);
    padding: 0.5rem 1rem;
    border-radius: 99px;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.filter-btn.active, .filter-btn:hover {
    background: var(--brown);
    color: var(--cream);
    border-color: var(--brown);
}
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.project-tags { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.tag { background: #e9e4d9; font-size: 0.8rem; padding: 0.25rem 0.5rem; border-radius: 4px; }
.project-links { display: flex; gap: 0.5rem; margin-top: auto; }

.video-placeholder-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    margin: 2rem auto;
    max-width: 800px;
}
.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-color: var(--khaki);
    border: 2px dashed var(--brown);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brown);
    font-size: 1.5rem;
    font-family: var(--font-heading);
    border-radius: var(--radius);
}
.pitch-text-content {
    max-width: 70ch;
    margin: 2rem auto;
    text-align: left;
}
.pitch-text-content ul {
    list-style-position: inside;
}
.pitch-notify form {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    max-width: 500px;
    margin: 1rem auto 0;
}
.pitch-notify input {
    flex-grow: 1;
    padding: 0.75rem;
    border: 1px solid var(--khaki);
    border-radius: var(--radius);
}

/* 7. Animations & Transitions */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes toastPop {
    0% { transform: translateY(20px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

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

/* 8. Responsive Media Queries */
@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        gap: 1rem;
    }
    .main-nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    .footer-content {
        grid-template-columns: 1fr;
    }
    .bio-grid {
        grid-template-columns: 1fr;
    }
    .bio-image {
        max-width: 300px;
        margin: 0 auto;
    }
}