/* ==========================================================================
   STUK FOOD - Base Styles
   Dark premium jerky e-commerce
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Reset / Normalize
   -------------------------------------------------------------------------- */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

ul,
ol {
  list-style: none;
}

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

h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
  line-height: 1.2;
}

p {
  overflow-wrap: break-word;
}

fieldset {
  border: none;
}

/* --------------------------------------------------------------------------
   Custom Properties
   -------------------------------------------------------------------------- */

:root {
  /* --- Colors --- */
  --color-bg:          #1a1a1a;
  --color-bg-light:    #2a2a2a;
  --color-bg-lighter:  #333333;
  --color-text:        #f0f0f0;
  --color-text-muted:  #999999;
  --color-gold:        #FFD700;
  --color-gold-hover:  #e6c200;
  --color-gold-dim:    rgba(255, 215, 0, 0.15);
  --color-green:       #2D5A27;
  --color-purple:      #5B2C8E;
  --color-pink:        #C74375;
  --color-danger:      #dc3545;
  --color-success:     #28a745;
  --color-info:        #17a2b8;
  --color-warning:     #ffc107;

  /* --- Spacing Scale --- */
  --space-xs:  0.25rem;   /*  4px */
  --space-sm:  0.5rem;    /*  8px */
  --space-md:  1rem;      /* 16px */
  --space-lg:  1.5rem;    /* 24px */
  --space-xl:  2rem;      /* 32px */
  --space-2xl: 3rem;      /* 48px */
  --space-3xl: 4rem;      /* 64px */
  --space-4xl: 6rem;      /* 96px */

  /* --- Border Radius --- */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* --- Font Sizes --- */
  --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 */
  --text-5xl:  3rem;      /* 48px */

  /* --- Font Weights --- */
  --font-normal:   400;
  --font-medium:   500;
  --font-semibold: 600;
  --font-bold:     700;
  --font-black:    900;

  /* --- Transitions --- */
  --transition-fast:    0.15s ease;
  --transition-base:    0.3s ease;
  --transition-slow:    0.5s ease;

  /* --- Shadows --- */
  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-xl:  0 12px 40px rgba(0, 0, 0, 0.6);
  --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.2);

  /* --- Layout --- */
  --header-height: 80px;
  --container-max: 1200px;
  --footer-min-height: 300px;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */

body {
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    "Noto Sans",
    sans-serif,
    "Apple Color Emoji",
    "Segoe UI Emoji",
    "Segoe UI Symbol",
    "Noto Color Emoji";
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1 {
  font-size: var(--text-5xl);
  font-weight: var(--font-black);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
}

h4 {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
}

h5 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

h6 {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
}

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

p:last-child {
  margin-bottom: 0;
}

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

strong {
  font-weight: var(--font-bold);
}

a {
  color: var(--color-gold);
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-gold-hover);
}

::selection {
  background-color: var(--color-gold);
  color: var(--color-bg);
}

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Primary: gold background, dark text */
.btn-primary {
  background-color: var(--color-gold);
  color: var(--color-bg);
  border-color: var(--color-gold);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-gold-hover);
  border-color: var(--color-gold-hover);
  box-shadow: var(--shadow-gold);
}

/* Secondary: outline gold */
.btn-secondary {
  background-color: transparent;
  color: var(--color-gold);
  border-color: var(--color-gold);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-gold);
  color: var(--color-bg);
  box-shadow: var(--shadow-gold);
}

/* Danger */
.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-text);
  border-color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background-color: #c82333;
  border-color: #c82333;
  box-shadow: 0 4px 20px rgba(220, 53, 69, 0.3);
}

/* Small button variant */
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

/* Large button variant */
.btn-lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   Form Inputs
   -------------------------------------------------------------------------- */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.form-input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg-lighter);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  outline: none;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.form-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.form-input:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px var(--color-gold-dim);
  background-color: var(--color-bg-light);
}

.form-input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-input--error {
  border-color: var(--color-danger);
}

.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.2);
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23999999' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-help {
  display: block;
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.form-error {
  display: block;
  margin-top: var(--space-xs);
  font-size: var(--text-sm);
  color: var(--color-danger);
}

/* --------------------------------------------------------------------------
   Messages / Alerts
   -------------------------------------------------------------------------- */

.message {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border: 1px solid transparent;
  animation: messageSlideIn 0.4s ease forwards;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message--success {
  background-color: rgba(40, 167, 69, 0.15);
  border-color: rgba(40, 167, 69, 0.3);
  color: #5bdb7e;
}

.message--error {
  background-color: rgba(220, 53, 69, 0.15);
  border-color: rgba(220, 53, 69, 0.3);
  color: #f0727f;
}

.message--info {
  background-color: rgba(23, 162, 184, 0.15);
  border-color: rgba(23, 162, 184, 0.3);
  color: #5bc8db;
}

.message--warning {
  background-color: rgba(255, 193, 7, 0.15);
  border-color: rgba(255, 193, 7, 0.3);
  color: #ffd54f;
}

/* --------------------------------------------------------------------------
   Badge
   -------------------------------------------------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2em 0.6em;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background-color: var(--color-gold);
  color: var(--color-bg);
}

.badge--danger {
  background-color: var(--color-danger);
  color: var(--color-text);
}

.badge--success {
  background-color: var(--color-success);
  color: var(--color-text);
}

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

.badge--pink {
  background-color: var(--color-pink);
  color: var(--color-text);
}

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

.badge--outline {
  background-color: transparent;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */

/* Text alignment */
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

/* Text colors */
.text-gold    { color: var(--color-gold); }
.text-muted   { color: var(--color-text-muted); }
.text-danger  { color: var(--color-danger); }
.text-success { color: var(--color-success); }

/* Margin top */
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

/* Margin bottom */
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

/* Padding */
.p-1 { padding: var(--space-sm); }
.p-2 { padding: var(--space-md); }
.p-3 { padding: var(--space-lg); }
.p-4 { padding: var(--space-xl); }

/* Display */
.d-flex        { display: flex; }
.d-block       { display: block; }
.d-inline      { display: inline; }
.d-inline-block { display: inline-block; }
.d-none        { display: none; }

/* Flex utilities */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

/* Width */
.w-100 { width: 100%; }

/* Font weight */
.fw-bold      { font-weight: var(--font-bold); }
.fw-semibold  { font-weight: var(--font-semibold); }
.fw-normal    { font-weight: var(--font-normal); }

/* Visibility (for screen readers) */
.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;
}

/* --------------------------------------------------------------------------
   Form Row (2-column grid)
   -------------------------------------------------------------------------- */

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Form Actions
   -------------------------------------------------------------------------- */

.form-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

/* --------------------------------------------------------------------------
   Checkbox Label
   -------------------------------------------------------------------------- */

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  text-transform: none;
  letter-spacing: normal;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-gold);
  cursor: pointer;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Message Close Button
   -------------------------------------------------------------------------- */

.message__close {
  margin-left: auto;
  padding: 0 var(--space-xs);
  font-size: var(--text-xl);
  line-height: 1;
  color: inherit;
  opacity: 0.6;
  cursor: pointer;
  background: none;
  border: none;
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
}

.message__close:hover {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   Light Theme
   -------------------------------------------------------------------------- */

[data-theme="light"] {
  --color-bg:          #f8f8f8;
  --color-bg-light:    #ffffff;
  --color-bg-lighter:  #eeeeee;
  --color-text:        #1a1a1a;
  --color-text-muted:  #666666;
  --color-gold:        #B8960F;
  --color-gold-hover:  #9A7D0A;
  --color-gold-dim:    rgba(184, 150, 15, 0.15);

  --shadow-sm:  0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl:  0 12px 40px rgba(0, 0, 0, 0.15);
  --shadow-gold: 0 4px 20px rgba(184, 150, 15, 0.15);
}

[data-theme="light"] .message--success {
  background-color: rgba(40, 167, 69, 0.1);
  border-color: rgba(40, 167, 69, 0.3);
  color: #1b7a32;
}

[data-theme="light"] .message--error {
  background-color: rgba(220, 53, 69, 0.1);
  border-color: rgba(220, 53, 69, 0.3);
  color: #b02a37;
}

[data-theme="light"] .message--info {
  background-color: rgba(23, 162, 184, 0.1);
  border-color: rgba(23, 162, 184, 0.3);
  color: #0e6e7d;
}

[data-theme="light"] .message--warning {
  background-color: rgba(255, 193, 7, 0.1);
  border-color: rgba(255, 193, 7, 0.3);
  color: #856404;
}

[data-theme="light"] .badge--danger,
[data-theme="light"] .badge--success,
[data-theme="light"] .badge--purple,
[data-theme="light"] .badge--pink,
[data-theme="light"] .badge--green {
  color: #ffffff;
}

[data-theme="light"] select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666666' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
}