/* ============================================================
   PORTA — Design System Stylesheet
   Version: 3.0  |  Updated: 2026
   File: porta.css  (place in project root)

   Requires:
     - Tailwind CDN (already in HTML)
     - Google Fonts: Plus Jakarta Sans + Inter + Material Symbols
   ============================================================ */


/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  /* Brand */
  --color-primary:          #554AD9;
  --color-primary-dim:      #443BAE;
  --color-primary-tint:     #DDDBF7;
  --color-primary-subtle:   rgba(85, 74, 217, 0.08);
  --color-primary-border:   rgba(85, 74, 217, 0.25);
  --color-accent-lime:      #CAFD00;

  /* Surfaces */
  --color-bg:               #F2F2F2;
  --color-surface:          #FFFFFF;
  --color-surface-low:      #EBEBEB;
  --color-surface-mid:      #F0F0F0;
  --color-surface-high:     #E8E8E8;
  --color-surface-bright:   #FCFCFC;
  --color-surface-variant:  #EEEEEE;

  /* Text */
  --color-text:             #1C1C1C;
  --color-text-secondary:   #4A4A4A;
  --color-text-muted:       #6B6B6B;
  --color-text-on-primary:  #FFFFFF;

  /* Borders */
  --color-border:           rgba(0, 0, 0, 0.08);
  --color-border-mid:       rgba(0, 0, 0, 0.12);
  --color-border-strong:    rgba(0, 0, 0, 0.20);

  /* Supporting */
  --color-secondary:        #6B72C8;
  --color-tertiary:         #007A8C;
  --color-error:            #CC3300;
  --color-error-bg:         #FFDDD6;
  --color-success:          #1A6B45;
  --color-success-bg:       #EEF7F2;

  /* Typography */
  --font-headline:          'Plus Jakarta Sans', sans-serif;
  --font-body:              'Inter', sans-serif;

  /* Layout */
  --max-width:              80rem;
  --nav-height:             72px;

  /* Spacing */
  --space-xs:   4px;
  --space-sm:   8px;
  --space-md:   16px;
  --space-lg:   24px;
  --space-xl:   40px;
  --space-2xl:  64px;
  --space-3xl:  96px;

  /* Radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-2xl:  20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:      0 1px 4px rgba(0,0,0,0.06);
  --shadow-md:      0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:      0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl:      0 20px 60px rgba(0,0,0,0.12);
  --shadow-primary: 0 6px 24px rgba(85,74,217,0.28);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.40s ease;
}


/* ── Base reset ─────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a { color: var(--color-primary); text-decoration: none; }


/* ── Tech grid background ───────────────────────────────────── */
.tech-grid {
  background-image:
    linear-gradient(to right, rgba(0,0,0,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}


/* ── Material Symbols ───────────────────────────────────────── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}


/* ── Glass cards ────────────────────────────────────────────── */
.glass-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.heavy-glass {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(0, 0, 0, 0.09);
}


/* ── Ambient glows ──────────────────────────────────────────── */
.ambient-glow-primary {
  background: radial-gradient(circle, rgba(85, 74, 217, 0.08) 0%, rgba(85, 74, 217, 0) 70%);
}

.ambient-glow-secondary {
  background: radial-gradient(circle, rgba(107, 114, 200, 0.08) 0%, rgba(107, 114, 200, 0) 70%);
}


/* ── Video glow ─────────────────────────────────────────────── */
.vsl-glow {
  box-shadow: 0 0 40px rgba(85, 74, 217, 0.18);
}


/* ── Spinning badge (fixed circular element) ────────────────── */
.curved-text {
  fill: #1c1c1c;
  font-weight: 900;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 11px;
  letter-spacing: 3.5px;
}


/* ── Savings calculator ─────────────────────────────────────── */
.porta-calc input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 10px;
  border-radius: var(--radius-full);
  background: linear-gradient(to right, rgba(184,0,0,0.18), rgba(184,0,0,0.70));
  border: 1px solid rgba(0,0,0,0.12);
  cursor: pointer;
}

.porta-calc input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 3px solid #ffffff;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.15), 0 8px 24px rgba(85,74,217,0.28);
  cursor: grab;
  transition: transform var(--transition-fast);
}

.porta-calc input[type="range"]::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.1);
}

.porta-calc input[type="range"]::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: 3px solid #ffffff;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.15), 0 8px 24px rgba(85,74,217,0.28);
  cursor: grab;
}

.porta-calc .gauge-needle {
  transition: transform 0.4s ease;
  transform-origin: 130px 130px;
}

.porta-calc .gauge-needle-fixed {
  transition: none;
}


/* ── Animated squares (How it Works) ───────────────────────── */
@keyframes fillPulse {
  0%, 100% { opacity: 0.05; }
  50%       { opacity: 1;    }
}

.sq-fill-1 { animation: fillPulse 1.6s ease-in-out infinite 0s;    }
.sq-fill-2 { animation: fillPulse 1.6s ease-in-out infinite 0.33s; }
.sq-fill-3 { animation: fillPulse 1.6s ease-in-out infinite 0.66s; }


/* ── Hero buttons — always in a row ─────────────────────────── */
.hero-actions {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.hero-btn {
  font-family: var(--font-headline);
  font-weight: 700;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  /* Mobile: compact */
  padding: 14px 20px;
  font-size: 0.9375rem;
}

.hero-btn:hover { transform: scale(1.02); }

.hero-btn-primary {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
}

.hero-btn-primary:hover {
  box-shadow: 0 0 12px rgba(0,0,0,0.25);
}

.hero-btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-mid);
}

.hero-btn-secondary:hover {
  background: #f7f7f7;
  box-shadow: 0 0 12px rgba(0,0,0,0.12);
}

@media (min-width: 640px) {
  .hero-btn {
    padding: 16px 32px;
    font-size: 1.0625rem;
  }
}


/* ── Section badge / label ──────────────────────────────────── */
.section-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(85,74,217,0.10);
  border: 1px solid rgba(85,74,217,0.20);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

@media (max-width: 639px) {
  .section-badge {
    font-size: 9px;
    letter-spacing: 0.12em;
    padding: 4px 10px;
  }
}

/* Small inline chips inside cards */
.chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-xl);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chip-primary {
  background: rgba(85,74,217,0.08);
  color: var(--color-primary);
  border: 1px solid rgba(85,74,217,0.20);
}

.chip-surface {
  background: var(--color-surface-low);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}


/* ── Buttons (generic) ──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 0.9375rem;
  padding: 12px 24px;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  line-height: 1;
}

.btn:hover  { transform: translateY(-1px); }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dim);
  box-shadow: 0 10px 32px rgba(85,74,217,0.35);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-mid);
}
.btn-secondary:hover { background: var(--color-surface-low); }

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary-border);
}
.btn-ghost:hover { background: var(--color-primary-tint); }

.btn-sm   { font-size: 0.8125rem; padding: 8px 16px;   }
.btn-lg   { font-size: 1.0625rem; padding: 16px 32px;  }
.btn-full { width: 100%; }


/* ── Contact lightbox pills ─────────────────────────────────── */
.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border: 1.5px solid #d4d4d4;
  border-radius: var(--radius-full);
  background: #fafafa;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.contact-pill:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-tint);
}

.contact-pill.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

#contact-overlay.open {
  display: flex !important;
}


/* ── How it Works — flow timeline ───────────────────────────── */
.flow-dot-open {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2.5px solid var(--color-primary);
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  z-index: 1;
}

.flow-dot-open .inner {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
}

.flow-dot-closed {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-line {
  width: 2px;
  flex: 1;
  min-height: 24px;
  background: linear-gradient(to bottom, var(--color-primary), rgba(85,74,217,0.45));
  margin-top: 2px;
}


/* ── Layout helpers ─────────────────────────────────────────── */
.porta-container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 4vw, 2rem);
  padding-right: clamp(1rem, 4vw, 2rem);
}

.porta-section    { padding-top: var(--space-3xl);  padding-bottom: var(--space-3xl);  }
.porta-section-sm { padding-top: var(--space-2xl);  padding-bottom: var(--space-2xl);  }
.porta-divider    { border: none; border-top: 1px solid var(--color-border); }


/* ── Footer ─────────────────────────────────────────────────── */
.porta-footer {
  background: #1c1c1c;
  padding: 48px clamp(1rem, 4vw, 2rem);
  border-top: 1px solid rgba(0,0,0,0.20);
}

.porta-footer__logo {
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

.porta-footer__logo span { color: var(--color-primary-tint); }

.porta-footer__link {
  color: rgba(255,255,255,0.45);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.porta-footer__link:hover { color: var(--color-primary-tint); }


/* ── Legal subpages ─────────────────────────────────────────── */
.legal-hero {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-2xl);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-2xl) clamp(1rem, 4vw, 2rem) var(--space-3xl);
}

.legal-content h2 {
  font-family: var(--font-headline);
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--color-text);
  margin: var(--space-2xl) 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary-tint);
  letter-spacing: -0.02em;
}

.legal-content h2:first-of-type { margin-top: 0; }

.legal-content h3 {
  font-family: var(--font-headline);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--space-lg) 0 var(--space-sm);
}

.legal-content p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.legal-content ul, .legal-content ol {
  margin: var(--space-sm) 0 var(--space-md) var(--space-lg);
}

.legal-content ul { list-style: disc; }
.legal-content ol { list-style: decimal; }

.legal-content li {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.legal-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-callout {
  background: var(--color-primary-tint);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-md) var(--space-lg);
  margin: var(--space-lg) 0;
}

.legal-callout p { margin: 0; color: var(--color-text); font-weight: 500; }

.legal-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

.legal-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}


/* ── Animations ─────────────────────────────────────────────── */
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes marquee {
  0%   { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 8px rgba(85,74,217,0.35); }
  50%       { box-shadow: 0 0 20px rgba(85,74,217,0.65); }
}

.animate-spin-slow  { animation: spin 20s linear infinite; }
.animate-marquee    { animation: marquee 20s linear infinite; }
.animate-fade-up    { animation: fadeInUp 0.5s ease both; }
.animate-pulse-glow { animation: pulseGlow 2.5s ease-in-out infinite; }


/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 767px) {
  :root {
    --space-3xl: 64px;
    --space-2xl: 48px;
  }
}

@media (max-width: 479px) {
  .btn-lg { padding: 14px 20px; font-size: 1rem; }
}


/* ── Accessibility ──────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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