/*
Theme Name: Signal
Theme URI: https://example.com/signal
Author: Priyam
Description: A minimal, 3D-animated portfolio theme for performance marketing and growth marketing services. Elementor compatible.
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Tested up to: 6.8
Text Domain: signal
*/

/* ==========================================================================
   DESIGN TOKENS
   ========================================================================== */
:root {
  /* Color: graphite base, signal-teal for data/motion, amber reserved for CTAs only */
  --sig-bg: #0c0f11;
  --sig-surface: #14181b;
  --sig-surface-raised: #1b2023;
  --sig-border: #262b2f;
  --sig-text: #edefee;
  --sig-text-muted: #8b939a;
  --sig-text-faint: #5b6268;
  --sig-teal: #5eead4;
  --sig-teal-dim: rgba(94, 234, 212, 0.14);
  --sig-amber: #f2a93b;
  --sig-amber-dim: rgba(242, 169, 59, 0.14);

  /* Type */
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Courier New", monospace;

  --fs-hero: clamp(2.8rem, 6vw, 5.6rem);
  --fs-h2: clamp(2rem, 4vw, 3.2rem);
  --fs-h3: clamp(1.4rem, 2.4vw, 1.9rem);
  --fs-body: 1.05rem;
  --fs-small: 0.85rem;

  /* Layout */
  --container-max: 1240px;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 7rem;
  --radius: 6px;
}

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

html {
  scroll-behavior: smooth;
}

@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;
  }
}

body {
  margin: 0;
  background: var(--sig-bg);
  color: var(--sig-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 var(--space-2);
  color: var(--sig-text-muted);
}

/* Visible keyboard focus everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--sig-teal);
  outline-offset: 3px;
}

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */
.sig-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.sig-section {
  padding: var(--space-6) 0;
  position: relative;
}

.sig-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--sig-teal);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-2);
}

.sig-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--sig-teal);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--sig-teal);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.sig-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 0.9em 1.6em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.sig-btn:hover {
  transform: translateY(-2px);
}

.sig-btn-primary {
  background: var(--sig-amber);
  color: #14181b;
}

.sig-btn-primary:hover {
  background: #ffbe5c;
}

.sig-btn-ghost {
  background: transparent;
  border-color: var(--sig-border);
  color: var(--sig-text);
}

.sig-btn-ghost:hover {
  border-color: var(--sig-teal);
  color: var(--sig-teal);
}

/* ==========================================================================
   HEADER / NAV
   ========================================================================== */
.sig-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-2) 0;
  backdrop-filter: blur(10px);
  background: rgba(12, 15, 17, 0.72);
  border-bottom: 1px solid var(--sig-border);
}

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

.sig-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.sig-logo span {
  color: var(--sig-teal);
}

.sig-nav ul {
  display: flex;
  gap: var(--space-4);
}

.sig-nav a {
  font-size: 0.92rem;
  color: var(--sig-text-muted);
  transition: color 0.2s ease;
}

.sig-nav a:hover,
.sig-nav a.current-menu-item-link {
  color: var(--sig-text);
}

.sig-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--sig-text);
  font-size: 1.4rem;
  cursor: pointer;
}

@media (max-width: 820px) {
  .sig-nav {
    position: fixed;
    top: 58px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--sig-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-110%);
    transition: transform 0.35s ease;
  }
  .sig-nav.is-open {
    transform: translateY(0);
  }
  .sig-nav ul {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }
  .sig-nav a {
    font-size: 1.4rem;
  }
  .sig-nav-toggle {
    display: block;
  }
}

/* ==========================================================================
   HERO / SIGNATURE 3D ELEMENT
   ========================================================================== */
.sig-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 90px;
}

.sig-hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.9;
}

.sig-hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.sig-hero h1 {
  font-size: var(--fs-hero);
  color: var(--sig-text);
}

.sig-hero h1 em {
  font-style: normal;
  color: var(--sig-teal);
}

.sig-hero-lede {
  font-size: 1.15rem;
  max-width: 540px;
  margin-bottom: var(--space-4);
}

.sig-hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Ticker of metric labels drifting under the hero — real design material, not decoration */
.sig-ticker {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--sig-border);
  border-bottom: 1px solid var(--sig-border);
  overflow: hidden;
  padding: var(--space-2) 0;
  margin-top: var(--space-5);
}

.sig-ticker-track {
  display: flex;
  gap: var(--space-5);
  white-space: nowrap;
  animation: sig-scroll 28s linear infinite;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--sig-text-faint);
  letter-spacing: 0.05em;
}

@keyframes sig-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ==========================================================================
   REVEAL ANIMATION (GSAP-driven, class toggled via ScrollTrigger)
   ========================================================================== */
.sig-reveal {
  opacity: 0;
  transform: translateY(28px);
}

.sig-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

/* ==========================================================================
   PROCESS (numbered — this content is a genuine sequence)
   ========================================================================== */
.sig-process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (max-width: 900px) {
  .sig-process-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .sig-process-grid {
    grid-template-columns: 1fr;
  }
}

.sig-process-step {
  border: 1px solid var(--sig-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  background: var(--sig-surface);
}

.sig-process-step .sig-step-number {
  font-family: var(--font-mono);
  color: var(--sig-teal);
  font-size: 0.85rem;
  margin-bottom: var(--space-2);
  display: block;
}

/* ==========================================================================
   CARDS (services / portfolio)
   ========================================================================== */
.sig-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

@media (max-width: 900px) {
  .sig-grid-3 {
    grid-template-columns: 1fr;
  }
}

.sig-card {
  background: var(--sig-surface);
  border: 1px solid var(--sig-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.sig-card:hover {
  border-color: var(--sig-teal);
  transform: translateY(-4px);
}

.sig-card h3 {
  font-size: var(--fs-h3);
}

.sig-card .sig-metric {
  font-family: var(--font-mono);
  color: var(--sig-teal);
  font-size: 2rem;
  display: block;
  margin-bottom: var(--space-1);
}

/* ==========================================================================
   PORTFOLIO GRID
   ========================================================================== */
.sig-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

@media (max-width: 760px) {
  .sig-portfolio-grid {
    grid-template-columns: 1fr;
  }
}

.sig-portfolio-item {
  position: relative;
  border: 1px solid var(--sig-border);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.sig-portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.sig-portfolio-item:hover img {
  transform: scale(1.05);
}

.sig-portfolio-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-3);
  background: linear-gradient(to top, rgba(12, 15, 17, 0.92), transparent 60%);
}

.sig-portfolio-overlay .sig-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--sig-teal);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.sig-footer {
  border-top: 1px solid var(--sig-border);
  padding: var(--space-5) 0 var(--space-3);
}

.sig-footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.sig-footer-cta h2 {
  font-size: var(--fs-h2);
  max-width: 600px;
}

.sig-footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px solid var(--sig-border);
  font-size: 0.82rem;
  color: var(--sig-text-faint);
  font-family: var(--font-mono);
}

/* ==========================================================================
   CONTENT AREA (Elementor / default WP content fallback)
   ========================================================================== */
.sig-content {
  padding: var(--space-6) 0;
}

.sig-content .sig-container {
  max-width: 820px;
}

/* Remove WP block default margins from clashing inside Elementor canvas */
.elementor-page .sig-content {
  padding: 0;
}