/* ========================================================================== 
   Variables
   ========================================================================== */

:root {
  /* Colors - Monochrome base with subtle earth accents */
  --color-background: #0f1011;
  --color-surface: #181a1c;
  --color-surface-alt: #1f2224;
  --color-text: #f5f5f5;
  --color-text-muted: #a0a4a8;
  --color-border-subtle: #2a2d30;

  --color-primary: #c29b6f; /* warm, subtle earth accent */
  --color-primary-soft: rgba(194, 155, 111, 0.08);
  --color-primary-strong: #e0b781;

  --color-success: #4aa981;
  --color-warning: #d6a63a;
  --color-danger: #e0564a;

  --gray-50: #fafafa;
  --gray-100: #f0f0f0;
  --gray-200: #e0e0e0;
  --gray-300: #c4c4c4;
  --gray-400: #a0a4a8;
  --gray-500: #7a7f85;
  --gray-600: #555a60;
  --gray-700: #3a3f45;
  --gray-800: #262a2f;
  --gray-900: #15171a;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --font-display: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --text-xs: 0.75rem;  /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem;   /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem;  /* 20px */
  --text-2xl: 1.5rem;  /* 24px */
  --text-3xl: 1.875rem;/* 30px */
  --text-4xl: 2.25rem; /* 36px */

  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.7;

  /* Spacing scale (px) */
  --space-0: 0;
  --space-1: 0.125rem;  /* 2px */
  --space-2: 0.25rem;   /* 4px */
  --space-3: 0.375rem;  /* 6px */
  --space-4: 0.5rem;    /* 8px */
  --space-5: 0.625rem;  /* 10px */
  --space-6: 0.75rem;   /* 12px */
  --space-8: 1rem;      /* 16px */
  --space-10: 1.25rem;  /* 20px */
  --space-12: 1.5rem;   /* 24px */
  --space-16: 2rem;     /* 32px */
  --space-20: 2.5rem;   /* 40px */
  --space-24: 3rem;     /* 48px */
  --space-32: 4rem;     /* 64px */
  --space-40: 5rem;     /* 80px */
  --space-48: 6rem;     /* 96px */

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Shadows - subtle, soft, studio-like */
  --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.35);
  --shadow-soft-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-soft-lg: 0 18px 40px rgba(0, 0, 0, 0.45);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 200ms ease-out;
  --transition-slow: 320ms ease;

  /* Layout */
  --container-max-width: 1120px;
  --container-padding-x: 1.5rem;
}

/* ========================================================================== 
   Reset / Normalize
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

body {
  min-height: 100vh;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

button {
  border: none;
  padding: 0;
  background: none;
  color: inherit;
}

textarea {
  resize: vertical;
}

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

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ========================================================================== 
   Base Styles
   ========================================================================== */

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  background-color: var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  min-height: 60vh;
}

/* Headings - refined, modern scale */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: var(--leading-tight);
  color: var(--gray-50);
}

h1 {
  font-size: clamp(2.25rem, 4vw, 3rem);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-16);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: 0.015em;
  margin-bottom: var(--space-12);
}

h3 {
  font-size: clamp(1.5rem, 2.4vw, 1.875rem);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-10);
}

h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-8);
}

h5 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-6);
}

h6 {
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

p {
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

p + p {
  margin-top: -0.25rem;
}

small {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
}

/* Links - understated, refined */

a {
  position: relative;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.1em;
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-primary), transparent);
  opacity: 0.6;
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

a:hover::after {
  transform: scaleX(1);
  opacity: 1;
}

a:hover {
  color: var(--color-primary-strong);
}

a:visited {
  color: var(--color-primary);
}

/* Lists */

ul,
ol {
  padding-left: 1.25rem;
  margin: 0 0 var(--space-8);
}

/* Images in content */

figure {
  margin: 0 0 var(--space-12);
}

figcaption {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ========================================================================== 
   Utilities
   ========================================================================== */

/* Layout: container */

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding-x);
}

.section {
  padding-block: clamp(3rem, 6vw, 5rem);
}

.section--tight {
  padding-block: clamp(2rem, 4vw, 3rem);
}

/* Flex helpers */

.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.gap-xs {
  gap: var(--space-4);
}

.gap-sm {
  gap: var(--space-6);
}

.gap-md {
  gap: var(--space-10);
}

.gap-lg {
  gap: var(--space-16);
}

/* Grid helpers */

.grid {
  display: grid;
  gap: var(--space-10);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-10);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-10);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Alignment & text utilities */

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

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

/* Spacing utilities (margin-bottom focused for vertical rhythm) */

.mb-0 { margin-bottom: 0 !important; }
.mb-xs { margin-bottom: var(--space-4) !important; }
.mb-sm { margin-bottom: var(--space-8) !important; }
.mb-md { margin-bottom: var(--space-12) !important; }
.mb-lg { margin-bottom: var(--space-20) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-xs { margin-top: var(--space-4) !important; }
.mt-sm { margin-top: var(--space-8) !important; }
.mt-md { margin-top: var(--space-12) !important; }
.mt-lg { margin-top: var(--space-20) !important; }

/* Visually hidden but accessible */

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

/* ========================================================================== 
   Components
   ========================================================================== */

/* Buttons - primary, ghost, subtle */

.btn {
  --btn-bg: var(--color-primary);
  --btn-color: #0b0c0d;
  --btn-border: transparent;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--btn-border);
  background-color: var(--btn-bg);
  color: var(--btn-color);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft-sm);
}

.btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

.btn--primary {
  --btn-bg: var(--color-primary);
  --btn-color: #0b0c0d;
  --btn-border: var(--color-primary);
}

.btn--primary:hover {
  --btn-bg: var(--color-primary-strong);
  --btn-border: var(--color-primary-strong);
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-color: var(--color-text);
  --btn-border: var(--color-border-subtle);
}

.btn--ghost:hover {
  --btn-bg: rgba(255, 255, 255, 0.02);
  --btn-border: var(--gray-600);
}

.btn--subtle {
  --btn-bg: var(--color-surface-alt);
  --btn-color: var(--color-text);
  --btn-border: var(--color-border-subtle);
}

.btn--subtle:hover {
  --btn-bg: var(--color-surface);
}

/* Form controls - inputs, textareas, selects */

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.field-label {
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.field-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.field-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #111214;
  color: var(--color-text);
  outline: none;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(194, 155, 111, 0.6);
}

.input[aria-invalid="true"],
.textarea[aria-invalid="true"],
.select[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.textarea {
  min-height: 120px;
  line-height: var(--leading-relaxed);
}

.select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 14px) 55%,
    calc(100% - 8px) 55%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

/* Card - for studio, hygiene, aftercare sections, portfolio items */

.card {
  position: relative;
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow-soft-sm);
  padding: clamp(1.25rem, 2vw, 1.75rem);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(194, 155, 111, 0.07), transparent 55%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.card:hover::before {
  opacity: 1;
}

.card-header {
  margin-bottom: var(--space-8);
}

.card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-4);
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.card-body {
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* Portfolio image wrapper */

.media-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: #050506;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.0), rgba(0, 0, 0, 0.4));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.media-frame:hover::after {
  opacity: 1;
}

/* ========================================================================== 
   Accessibility & Motion
   ========================================================================== */

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: none;
}

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

/* ========================================================================== 
   Helpers specific to Ink Atelier aesthetic
   ========================================================================== */

/* Subtle dividers for sections */

.divider {
  height: 1px;
  width: 100%;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.08), transparent);
  margin-block: var(--space-16);
}

/* Tag / pill for styles, hygiene labels, etc. */

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background-color: rgba(255, 255, 255, 0.02);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Muted panel background for info sections (hygiene, aftercare) */

.panel-muted {
  background-color: #141619;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.03);
  padding: clamp(1.5rem, 3vw, 2rem);
}