/* Silver Linings - Complete Stylesheet */

/* Import fonts FIRST - @import must come before all other rules */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

/* ========================================
   RESET
   ======================================== */

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  text-rendering: optimizeLegibility;
}

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

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

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

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

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

ul, ol {
  list-style: none;
}

/* ========================================
   VARIABLES
   ======================================== */

:root {
  /* Base Colors */
  --black-primary: #0a0a0a;
  --black-secondary: #1a1a1a;
  --black-tertiary: #252525;

  /* Silver Accent (the "lining") */
  --silver-bright: #e8e8e8;
  --silver-medium: #c0c0c0;
  --silver-dim: #808080;

  /* Text Colors */
  --text-primary: #d0d0d0;
  --text-secondary: #a0a0a0;
  --text-muted: #707070;

  /* Optional Secondary Accent */
  --accent-steel: #4a5d6e;

  /* Functional Colors */
  --focus-ring: #e8e8e8;
  --error: #d85c5c;
  --success: #5c9e7c;

  /* Font Families */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  /* Font Sizes (fluid typography using clamp) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.3vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.5vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.5rem + 2vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 2rem + 2.5vw, 4.5rem);

  /* Font Weights */
  --weight-light: 300;
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  /* Letter Spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 2px;
  --radius-md: 4px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;

  /* Container */
  --container-max-width: 1200px;
  --container-padding: var(--space-6);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0s;
    --transition-base: 0s;
    --transition-slow: 0s;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========================================
   BASE STYLES
   ======================================== */

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--black-primary);
  background-image:
    radial-gradient(ellipse at top, rgba(26, 26, 26, 0.8) 0%, rgba(10, 10, 10, 1) 50%);
  background-attachment: fixed;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--weight-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--silver-bright);
}

h1 {
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
}

h2 {
  font-size: var(--text-2xl);
}

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

h4 {
  font-size: var(--text-lg);
}

h5, h6 {
  font-size: var(--text-base);
}

p {
  margin-bottom: var(--space-4);
}

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

/* Links */
a {
  color: var(--silver-medium);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base);
}

a:hover {
  border-bottom-color: var(--silver-medium);
}

a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Container Utility */
.container {
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

/* Section Spacing */
section {
  padding-top: var(--space-24);
  padding-bottom: var(--space-24);
}

@media (min-width: 768px) {
  section {
    padding-top: var(--space-32);
    padding-bottom: var(--space-32);
  }
}

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

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

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

/* Selection */
::selection {
  background-color: var(--silver-medium);
  color: var(--black-primary);
}

/* ========================================
   COMPONENTS
   ======================================== */

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-align: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-slow);
  min-height: 44px;
  line-height: 1.5;
}

.btn-primary {
  background: var(--black-secondary);
  border: 1px solid var(--silver-medium);
  color: var(--silver-bright);
}

.btn-primary:hover {
  border-color: var(--silver-bright);
  box-shadow: 0 0 20px rgba(232, 232, 232, 0.15);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: transparent;
  border: none;
  color: var(--silver-medium);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.btn-ghost:hover {
  color: var(--silver-bright);
  text-decoration-color: var(--silver-bright);
}

/* Cards */
.card {
  background: var(--black-secondary);
  border: 1px solid rgba(192, 192, 192, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  position: relative;
  transition: border-color var(--transition-base);
}

.card:hover {
  border-color: rgba(192, 192, 192, 0.2);
}

.card--featured {
  border-left: 2px solid var(--silver-bright);
  box-shadow: -4px 0 20px rgba(232, 232, 232, 0.05);
}

.card__title {
  color: var(--silver-bright);
  margin-bottom: var(--space-4);
}

.card__description {
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
}

/* Badges */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  background: rgba(192, 192, 192, 0.1);
  color: var(--silver-medium);
  border: 1px solid rgba(192, 192, 192, 0.2);
}

.badge--primary {
  background: rgba(232, 232, 232, 0.1);
  color: var(--silver-bright);
  border-color: rgba(232, 232, 232, 0.3);
}

.badge--steel {
  background: rgba(74, 93, 110, 0.2);
  color: var(--accent-steel);
  border-color: var(--accent-steel);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--silver-medium);
  letter-spacing: var(--tracking-wide);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--black-secondary);
  border: 1px solid rgba(192, 192, 192, 0.2);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--silver-medium);
  box-shadow: 0 0 0 3px rgba(192, 192, 192, 0.1);
}

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

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--error);
}

/* Header Navigation */
.header {
  padding: var(--space-6) 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid rgba(192, 192, 192, 0.05);
}

.header__container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-8);
}

.header__logo {
  height: 40px;
  width: auto;
}

.nav__list {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--silver-medium);
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--silver-bright);
  border-bottom-color: var(--silver-bright);
}

/* Footer */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid rgba(192, 192, 192, 0.1);
  margin-top: var(--space-32);
}

.footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  text-align: center;
}

.footer__text {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.footer__link:hover {
  color: var(--silver-medium);
}

/* Silver Arc Decorative Elements */
.silver-arc {
  position: relative;
}

.silver-arc::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border: 1px solid var(--silver-bright);
  border-radius: 50%;
  opacity: 0.15;
  filter: blur(1px);
  pointer-events: none;
}

.silver-arc--top-left::before {
  top: -150px;
  left: -150px;
  border-right: none;
  border-bottom: none;
}

.silver-arc--top-right::before {
  top: -150px;
  right: -150px;
  border-left: none;
  border-bottom: none;
}

.silver-arc--bottom-left::before {
  bottom: -150px;
  left: -150px;
  border-right: none;
  border-top: none;
}

.silver-arc--bottom-right::before {
  bottom: -150px;
  right: -150px;
  border-left: none;
  border-top: none;
}

/* Responsive Navigation */
@media (max-width: 768px) {
  .nav__list {
    gap: var(--space-4);
    font-size: var(--text-xs);
  }

  .header__logo {
    height: 32px;
  }
}

/* ========================================
   PAGE-SPECIFIC STYLES
   ======================================== */

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero__content {
  position: relative;
  z-index: var(--z-base);
  max-width: 800px;
  padding: var(--space-8);
}

.hero__logo {
  width: 200px;
  height: auto;
  margin: 0 auto var(--space-8);
}

.hero__headline {
  font-size: var(--text-3xl);
  font-weight: var(--weight-semibold);
  color: var(--silver-bright);
  margin-bottom: var(--space-6);
  letter-spacing: var(--tracking-tight);
}

.hero__subheading {
  font-size: var(--text-lg);
  font-weight: var(--weight-light);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  letter-spacing: var(--tracking-wide);
}

.hero__cta {
  margin-top: var(--space-8);
}

/* Hero Background Arc */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border: 2px solid var(--silver-bright);
  border-radius: 50%;
  opacity: 0.08;
  filter: blur(2px);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(26, 26, 26, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

/* Services Section */
.services {
  background: rgba(26, 26, 26, 0.5);
  position: relative;
}

.section__title {
  text-align: center;
  margin-bottom: var(--space-16);
  font-size: var(--text-2xl);
  color: var(--silver-bright);
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Process Section */
.process {
  position: relative;
}

.process__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  position: relative;
}

@media (min-width: 768px) {
  .process__steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.process__step {
  text-align: center;
  position: relative;
}

.process__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border: 2px solid var(--silver-medium);
  border-radius: 50%;
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--silver-bright);
  margin-bottom: var(--space-4);
  position: relative;
  background: var(--black-secondary);
}

.process__step-title {
  font-size: var(--text-xl);
  color: var(--silver-bright);
  margin-bottom: var(--space-3);
}

.process__step-description {
  color: var(--text-primary);
}

/* Connecting line between steps (desktop only) */
@media (min-width: 768px) {
  .process__steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 20%;
    right: 20%;
    height: 1px;
    background: linear-gradient(
      to right,
      transparent,
      var(--silver-dim) 20%,
      var(--silver-dim) 80%,
      transparent
    );
    z-index: 0;
  }

  .process__number {
    z-index: 1;
  }
}

/* Why Section */
.why {
  background: rgba(26, 26, 26, 0.5);
}

.why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .why__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.why__item {
  padding: var(--space-6);
}

.why__item-title {
  font-size: var(--text-lg);
  color: var(--silver-bright);
  margin-bottom: var(--space-3);
}

.why__item-description {
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

/* Featured Work Section */
.work__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .work__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.project-card {
  background: var(--black-secondary);
  border: 1px solid rgba(192, 192, 192, 0.1);
  border-left: 2px solid var(--silver-bright);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.project-card:hover {
  border-color: rgba(192, 192, 192, 0.3);
  box-shadow: -4px 0 30px rgba(232, 232, 232, 0.08);
}

.project-card__header {
  margin-bottom: var(--space-6);
}

.project-card__title {
  font-size: var(--text-xl);
  color: var(--silver-bright);
  margin-bottom: var(--space-3);
}

.project-card__description {
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  line-height: var(--leading-relaxed);
}

.project-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.project-card__status {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--silver-medium);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  transition: color var(--transition-base);
}

.project-card__link:hover {
  color: var(--silver-bright);
}

/* Contact Section */
.contact {
  background: rgba(26, 26, 26, 0.5);
}

.contact__container {
  max-width: 600px;
  margin: 0 auto;
}

.contact__title {
  text-align: center;
  margin-bottom: var(--space-12);
}

.contact__form {
  margin-bottom: var(--space-12);
}

.contact__alternate {
  text-align: center;
  padding-top: var(--space-12);
  border-top: 1px solid rgba(192, 192, 192, 0.1);
}

.contact__email {
  font-size: var(--text-lg);
  color: var(--silver-medium);
  margin-bottom: var(--space-6);
}

.contact__projects {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* Fade-in Animation (optional, respects prefers-reduced-motion) */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
  }
}