/* ==========================================================================
   The Sur Quarterly — a technical editorial
   Editorial portfolio system for Soham Sur
   ========================================================================== */

:root {
  --paper:           #ece6da;
  --paper-deep:      #e3dcce;
  --paper-shadow:    #d8d0bf;
  --ink:             #15140f;
  --ink-soft:        #2c2a24;
  --muted:           #786f64;
  --muted-soft:      #9c9388;
  --accent:          #c3361b;
  --accent-deep:     #8e2310;
  --hairline:        rgba(21, 20, 15, 0.14);
  --hairline-strong: rgba(21, 20, 15, 0.32);
  --tint-warm:       rgba(195, 54, 27, 0.08);

  --display: 'Fraunces', 'Times New Roman', serif;
  --body:    'Newsreader', Georgia, 'Times New Roman', serif;
  --mono:    'JetBrains Mono', ui-monospace, 'Courier New', monospace;

  --gutter:  clamp(20px, 5vw, 96px);
  --rhythm:  clamp(80px, 12vh, 160px);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body);
  background: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.55;
  font-weight: 380;
  font-variation-settings: "opsz" 16;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  overflow-x: hidden;
}

/* ----- paper grain (subtle, fixed overlay) ----- */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.08 0 0 0 0 0.07 0 0 0 0 0.05 0 0 0 0.55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.22;
  mix-blend-mode: multiply;
}

/* ----- subtle vignette to give paper depth ----- */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 99;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(120, 100, 70, 0.18) 100%);
}

::selection {
  background: var(--accent);
  color: var(--paper);
}

a { color: inherit; }

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

.container {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
  max-width: 1440px;
  margin: 0 auto;
}

/* ==========================================================================
   Masthead / Hero  (kept as #header to preserve anchor + JS hooks)
   ========================================================================== */
#header {
  width: 100%;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 80% -10%, var(--tint-warm), transparent 55%),
    radial-gradient(ellipse at -10% 110%, rgba(21,20,15,0.05), transparent 60%),
    var(--paper);
  position: relative;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--hairline);
}

#header::after {
  content: '';
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: 0;
  border-bottom: 1px solid var(--hairline);
}

/* ----- nav / masthead ----- */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 26px 0 22px;
  border-bottom: 1px solid var(--hairline);
  position: relative;
  z-index: 5;
}

nav::before {
  content: 'VOL. V — ISSUE 26';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--paper);
  padding: 0 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--muted);
  display: none; /* hidden on small screens by default */
}

@media (min-width: 900px) {
  nav::before { display: inline-block; }
}

.logo {
  width: auto;
  height: 38px;
  filter: grayscale(1) contrast(1.1) brightness(0.25);
  opacity: 0.92;
  transition: opacity 0.4s;
}

.logo:hover { opacity: 1; }

nav ul {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

nav ul li { display: inline-block; }

nav ul li a {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 10px 16px;
  position: relative;
  transition: color 0.3s;
}

nav ul li a::before {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s cubic-bezier(.7,0,.2,1);
}

nav ul li a:hover {
  color: var(--accent);
}

nav ul li a:hover::before {
  transform: scaleX(1);
}

/* ----- hero text ----- */
#header .header-text {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  align-content: center;
  padding: clamp(60px, 12vh, 140px) 0 80px;
  position: relative;
  z-index: 2;
}

#header .header-text > p {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  animation: rise 0.9s 0.1s both cubic-bezier(.2,.7,.2,1);
}

#header .header-text > p::before {
  content: '';
  width: 36px;
  height: 1px;
  background: var(--ink);
}

#header .header-text h1 {
  font-family: var(--display);
  font-weight: 380;
  font-variation-settings: "opsz" 144, "SOFT" 60, "WONK" 1;
  font-size: clamp(72px, 14vw, 220px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--ink);
  margin: 0;
  animation: rise 0.9s 0.25s both cubic-bezier(.2,.7,.2,1);
}

#header .header-text h1 span {
  font-style: italic;
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
  color: var(--accent);
  position: relative;
  display: inline-block;
}

#header .header-text h1 span::after {
  content: '.';
  color: var(--accent);
}

#header .header-text h3 {
  font-family: var(--body);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(18px, 2.4vw, 28px);
  color: var(--ink-soft);
  margin-top: 36px;
  max-width: 38ch;
  animation: rise 0.9s 0.4s both cubic-bezier(.2,.7,.2,1);
}

#header .header-text h3::before {
  content: '— ';
  color: var(--accent);
  font-style: normal;
}

/* ----- meta strip at bottom of hero ----- */
#header .header-text::after {
  content: 'HYDERABAD, IN  ·  SDET @ DELOITTE  ·  AVAILABLE FOR COLLAB';
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--muted);
  margin-top: clamp(50px, 8vh, 100px);
  padding-top: 22px;
  border-top: 1px solid var(--hairline);
  animation: rise 0.9s 0.55s both cubic-bezier(.2,.7,.2,1);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Section system — § numerals, dividers, sub-titles
   ========================================================================== */
section, #about, #services, #portfolio, #contact {
  padding: var(--rhythm) 0;
  position: relative;
}

.sub-title {
  font-family: var(--display);
  font-weight: 380;
  font-variation-settings: "opsz" 144, "SOFT" 50;
  font-size: clamp(44px, 6.5vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0;
}

.sub-title em {
  font-style: italic;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 100, "WONK" 1;
}

/* Section-numeral chip injected via ::before on section headers */
#about .container > .row::before,
#services .container > .sub-title::before,
#portfolio .container > .sub-title::before,
#contact .container > .row::before {
  /* placeholder — actual numerals applied in section-specific blocks below */
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 60px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hairline);
}

.section-head .numeral {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.section-head .numeral:first-child::before {
  content: '§ ';
  color: var(--accent);
}

.section-head .numeral:last-child:not(:first-child) {
  color: var(--muted-soft);
  font-style: italic;
  letter-spacing: 0.18em;
  text-transform: lowercase;
}

/* ==========================================================================
   § 01 — About
   ========================================================================== */
.row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.7fr);
  gap: clamp(40px, 6vw, 100px);
  align-items: start;
}

.about-col-1 {
  position: sticky;
  top: 40px;
}

.about-col-1 img {
  width: 100%;
  border-radius: 2px;
  filter: grayscale(0.85) contrast(1.08) sepia(0.18);
  box-shadow:
    0 0 0 1px var(--hairline),
    14px 14px 0 -1px var(--paper-shadow),
    14px 14px 0 0 var(--hairline);
  transition: filter 0.6s, transform 0.6s;
}

.about-col-1 img:hover {
  filter: grayscale(0) contrast(1.02) sepia(0);
  transform: translate(-2px, -2px);
}

.about-col-1::after {
  content: 'FIG. 01 — The author, off duty.';
  display: block;
  margin-top: 22px;
  font-family: var(--body);
  font-style: italic;
  font-size: 13px;
  color: var(--muted);
  text-align: right;
  padding-right: 14px;
}

.about-col-2 > .sub-title {
  margin-bottom: 32px;
}

.about-col-2 > p {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 56ch;
  margin-bottom: 12px;
}

.about-col-2 > p strong {
  color: var(--ink);
  font-weight: 500;
}

/* dropcap on the first paragraph */
.about-col-2 > p:first-of-type::first-letter {
  font-family: var(--display);
  font-variation-settings: "opsz" 144, "SOFT" 80, "WONK" 1;
  font-weight: 380;
  float: left;
  font-size: 5.2em;
  line-height: 0.85;
  padding: 8px 14px 0 0;
  color: var(--accent);
}

/* ----- tab navigation as table-of-contents ----- */
.tab-titles {
  display: flex;
  gap: 4px;
  margin: 56px 0 28px;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: 4px 0;
}

.tab-links {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  padding: 14px 22px;
  position: relative;
  transition: color 0.3s, background 0.3s;
}

.tab-links::before {
  content: counter(tab, decimal-leading-zero) '  ';
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.3s;
}

.tab-titles { counter-reset: tab; }
.tab-links { counter-increment: tab; }

.tab-links:hover {
  color: var(--ink);
  background: var(--tint-warm);
}

.tab-links:hover::before { opacity: 1; }

.tab-links.active-link {
  color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.tab-links.active-link::before {
  opacity: 1;
  color: var(--accent);
}

.tab-links.active-link::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 2px;
  background: var(--accent);
}

.tab-contents { display: none; }
.tab-contents.active-tab {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.tab-contents ul {
  list-style: none;
  margin-top: 14px;
}

.tab-contents ul li {
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: padding-left 0.3s;
}

.tab-contents ul li:hover {
  padding-left: 14px;
}

.tab-contents ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s cubic-bezier(.7,0,.2,1);
}

.tab-contents ul li:hover::before {
  width: 8px;
}

.tab-contents ul li span {
  font-family: var(--display);
  font-style: italic;
  font-variation-settings: "opsz" 36, "SOFT" 80, "WONK" 1;
  font-size: 22px;
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.005em;
}

.tab-contents ul li i {
  display: none;
}

.tab-contents ul li p {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-style: normal;
  margin-top: 4px;
}

#experience ul li::after,
#experience ul li:not(:has(p))::after {
  content: '';
}

/* duration text after company */
#experience ul li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: baseline;
}

#experience ul li span {
  grid-column: 1;
}

#experience ul li br {
  display: none;
}

#experience ul li::after {
  content: '';
}

#experience ul li {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ----- skill filters ----- */
.skill-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 18px 0 28px;
}

.filter-btn {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--hairline);
  padding: 9px 18px;
  border-radius: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transition: all 0.3s;
  position: relative;
}

.filter-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.filter-btn.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.filter-btn.active::before {
  content: '●';
  color: var(--accent);
  margin-right: 8px;
}

/* ----- skills grid ----- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  list-style: none;
  margin: 0;
}

.skills-grid li {
  background: var(--paper);
  padding: 22px 24px;
  transition: background 0.35s, color 0.35s, transform 0.35s;
  position: relative;
  cursor: default;
  border: none !important;
}

.skills-grid li::before {
  display: none !important;
}

.skills-grid li:hover {
  background: var(--ink);
  color: var(--paper);
  z-index: 2;
}

.skills-grid li:hover span {
  color: var(--paper);
}

.skills-grid li span {
  display: block;
  font-family: var(--display);
  font-style: italic;
  font-variation-settings: "opsz" 36, "SOFT" 80, "WONK" 1;
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 6px;
  transition: color 0.35s;
}

.skills-grid li br { display: none; }

.skills-grid li {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 110px;
}

.skills-grid li.hidden { display: none; }

/* ==========================================================================
   § 02 — Services
   ========================================================================== */
#services {
  background:
    linear-gradient(to bottom, transparent 0, var(--paper-deep) 50%, transparent 100%);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.services-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 50px;
  counter-reset: svc;
  border-top: 1px solid var(--hairline-strong);
}

.services-list > div {
  counter-increment: svc;
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: clamp(20px, 4vw, 60px);
  align-items: start;
  padding: 48px 0;
  border-bottom: 1px solid var(--hairline);
  background: transparent;
  border-radius: 0;
  position: relative;
  transition: padding 0.5s, background 0.5s;
  font-family: var(--body);
  font-weight: 380;
  font-size: 16px;
}

.services-list > div::before {
  content: counter(svc, decimal-leading-zero);
  font-family: var(--display);
  font-variation-settings: "opsz" 144, "SOFT" 80, "WONK" 1;
  font-size: 72px;
  line-height: 0.85;
  color: var(--ink);
  font-weight: 380;
  transition: color 0.5s, transform 0.5s;
  align-self: start;
}

.services-list > div:hover {
  padding-left: 24px;
  background: linear-gradient(to right, var(--tint-warm), transparent 50%);
}

.services-list > div:hover::before {
  color: var(--accent);
  font-style: italic;
  transform: translateX(-6px);
}

.services-list > div i {
  display: none;  /* numerals replace icons */
}

.services-list > div h2 {
  font-family: var(--display);
  font-variation-settings: "opsz" 144, "SOFT" 50;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1;
  font-weight: 380;
  color: var(--ink);
  margin: 0 0 18px 0;
  letter-spacing: -0.015em;
}

.services-list > div p {
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.55;
  max-width: 60ch;
  grid-column: 2;
}

.services-list > div a {
  grid-column: 3;
  align-self: end;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  padding: 10px 0;
  border-bottom: 1px solid var(--ink);
  white-space: nowrap;
  transition: color 0.3s, border-color 0.3s, transform 0.3s;
  position: relative;
}

.services-list > div a::after {
  content: ' →';
  display: inline-block;
  transition: transform 0.3s;
}

.services-list > div a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.services-list > div a:hover::after {
  transform: translateX(6px);
}

/* ==========================================================================
   § 03 — Portfolio
   ========================================================================== */
#portfolio { padding-bottom: 40px; }

.work-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 4px;
  margin-top: 50px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.work {
  position: relative;
  overflow: hidden;
  background: var(--paper);
  aspect-ratio: 4 / 3;
  cursor: pointer;
}

.work img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05) brightness(0.97);
  transition: filter 0.6s, transform 0.8s cubic-bezier(.2,.7,.2,1);
}

.work:hover img {
  filter: grayscale(0) contrast(1) brightness(1);
  transform: scale(1.04);
}

.layer {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 28px 28px 24px;
  background: linear-gradient(to top, rgba(21,20,15,0.88) 0%, rgba(21,20,15,0.4) 55%, transparent 100%);
  color: var(--paper);
  transition: background 0.5s;
}

.layer h3 {
  font-family: var(--display);
  font-variation-settings: "opsz" 144, "SOFT" 80, "WONK" 1;
  font-size: 30px;
  font-weight: 380;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  color: var(--paper);
}

.layer h3::before {
  content: '— ';
  color: var(--accent);
}

.layer p {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted-soft);
  margin-bottom: 18px;
}

.layer a {
  font-family: var(--mono);
  text-decoration: none;
  color: var(--paper);
  background: var(--accent);
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
  transition: transform 0.4s cubic-bezier(.2,.7,.2,1), background 0.4s;
}

.work:hover .layer a {
  transform: rotate(-12deg) translateX(4px);
  background: var(--paper);
  color: var(--accent);
}

/* stamp ribbon over coming-soon works */
.work::after {
  content: 'WORK IN PROGRESS';
  position: absolute;
  top: 18px;
  right: -42px;
  background: var(--accent);
  color: var(--paper);
  padding: 5px 50px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.28em;
  transform: rotate(35deg);
  z-index: 3;
  box-shadow: 0 2px 0 rgba(0,0,0,0.15);
  opacity: 0.95;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 56px auto 0;
  width: fit-content;
  padding: 16px 36px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: color 0.4s, border-color 0.4s;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(100%);
  transition: transform 0.45s cubic-bezier(.7,0,.2,1);
  z-index: -1;
}

.btn:hover {
  color: var(--paper);
}

.btn:hover::before {
  transform: translateY(0);
}

#portfolio > .container > .btn {
  display: flex;
}

.btn.btn2 {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
  margin-top: 32px;
}

.btn.btn2::before {
  background: var(--ink);
}

.btn.btn2:hover {
  color: var(--paper);
  border-color: var(--ink);
}

/* ==========================================================================
   § 04 — Contact
   ========================================================================== */
#contact {
  border-top: 1px solid var(--hairline);
  background:
    radial-gradient(ellipse at 0% 0%, var(--tint-warm), transparent 60%),
    var(--paper);
}

#contact .row {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
  gap: clamp(40px, 6vw, 100px);
}

.contact-left .sub-title {
  margin-bottom: 32px;
}

.contact-left p {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 22px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.contact-left p i {
  color: var(--accent);
  font-size: 14px;
  width: 20px;
  text-align: center;
}

.social-icons {
  margin-top: 38px;
  display: flex;
  gap: 18px;
  padding-top: 26px;
  border-top: 1px solid var(--hairline);
}

.social-icons a {
  text-decoration: none;
  font-size: 22px;
  color: var(--ink-soft);
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  transition: transform 0.4s cubic-bezier(.2,.7,.2,1), color 0.4s, border-color 0.4s, background 0.4s;
}

.social-icons a:hover {
  color: var(--paper);
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-5px) rotate(-6deg);
}

/* ----- form ----- */
form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

form input, form textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--hairline-strong);
  outline: none;
  background: transparent;
  padding: 22px 4px 14px;
  margin: 0;
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  border-radius: 0;
  transition: border-color 0.3s;
}

form input::placeholder, form textarea::placeholder {
  color: var(--muted);
  font-style: italic;
}

form input:focus, form textarea:focus {
  border-color: var(--accent);
}

form textarea {
  resize: vertical;
  min-height: 140px;
  padding-top: 22px;
}

form button {
  align-self: flex-start;
}

#msg {
  color: var(--accent-deep);
  margin-top: 18px;
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* ==========================================================================
   Colophon (footer)
   ========================================================================== */
.copyright {
  width: 100%;
  text-align: center;
  padding: 30px 0 36px;
  background: var(--ink);
  color: var(--paper-deep);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-top: 0;
  border-top: 4px double var(--accent);
}

.copyright p a {
  text-decoration: none;
  color: var(--paper);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  transition: color 0.3s;
}

.copyright p a:hover {
  color: var(--accent);
}

/* ==========================================================================
   Mobile / responsive
   ========================================================================== */
nav .fas { display: none; }

@media (max-width: 900px) {
  .row {
    grid-template-columns: 1fr;
  }
  .about-col-1 {
    position: static;
    max-width: 380px;
  }
  #contact .row {
    grid-template-columns: 1fr;
  }
  .services-list > div {
    grid-template-columns: 70px 1fr;
    gap: 24px;
  }
  .services-list > div p { grid-column: 1 / -1; }
  .services-list > div a { grid-column: 1 / -1; justify-self: start; }
  .services-list > div::before { font-size: 56px; }
}

@media (max-width: 600px) {
  #header { min-height: auto; }

  nav .fas {
    display: block;
    font-size: 22px;
    color: var(--ink);
    cursor: pointer;
  }

  nav ul {
    background: var(--ink);
    position: fixed;
    top: 0;
    right: -260px;
    width: 260px;
    height: 100vh;
    padding-top: 70px;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    z-index: 200;
    transition: right 0.5s cubic-bezier(.7,0,.2,1);
    border-left: 4px double var(--accent);
  }

  nav ul li {
    display: block;
    margin: 0;
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }

  nav ul li a {
    color: var(--paper);
    padding: 18px 28px;
    display: block;
  }

  nav ul li a::before { display: none; }

  nav ul .fas {
    position: absolute;
    top: 22px;
    right: 22px;
    color: var(--paper);
    cursor: pointer;
  }

  #header .header-text {
    padding: 60px 0 40px;
  }

  #header .header-text h1 { font-size: 64px; }
  #header .header-text h3 { font-size: 17px; }
  #header .header-text::after { font-size: 9px; }

  .sub-title { font-size: 44px; }

  .skills-grid { grid-template-columns: 1fr; }

  .tab-titles { flex-wrap: wrap; }
  .tab-links { padding: 12px 14px; font-size: 10px; }

  .services-list > div {
    grid-template-columns: 1fr;
    padding: 36px 0;
  }
  .services-list > div::before { font-size: 48px; margin-bottom: 8px; }
  .services-list > div h2 { font-size: 30px; }
  .services-list > div p { grid-column: 1; }
  .services-list > div a { grid-column: 1; justify-self: start; }

  .copyright { font-size: 9px; padding: 24px 16px; line-height: 1.8; }
}