/* ============================================
   RATE TRACKER — SALES PARTNER LANDING PAGE
   Brand: Dark bg, Green accents (#45B72E)
   Fonts: Poppins (headings), Open Sans (body)
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    8rem);

  /* Spacing (4px base) */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Rate Tracker Brand Colors */
  --color-bg:             #181818;
  --color-surface:        #212121;
  --color-surface-2:      #2a2a2a;
  --color-surface-3:      #333333;
  --color-border:         rgba(255, 255, 255, 0.08);
  --color-border-strong:  rgba(255, 255, 255, 0.15);

  --color-text:           #f0f0f0;
  --color-text-muted:     #a0a0a0;
  --color-text-faint:     #666666;

  /* Primary — Rate Tracker Green */
  --color-primary:        #45B72E;
  --color-primary-hover:  #3da027;
  --color-primary-glow:   rgba(69, 183, 46, 0.15);
  --color-primary-soft:   rgba(69, 183, 46, 0.08);

  /* Secondary accents */
  --color-blue:           #147EFF;
  --color-light-green:    #5FF540;
  --color-yellow:         #F9D332;
  --color-orange:         #FFB932;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-green: 0 4px 24px rgba(69, 183, 46, 0.2);

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Poppins', 'Helvetica Neue', sans-serif;
  --font-body: 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* --- Global Styles --- */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
}

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

.container {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--content-default);
}

/* --- Scroll Reveal Animations --- */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* Fallback for no scroll-timeline support */
@supports not (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: fade-in-simple 0.8s var(--ease-out) forwards;
  }
  .fade-in.visible {
    opacity: 1;
  }
}

@keyframes fade-in-simple {
  to { opacity: 1; }
}

/* ============================================
   HEADER / NAV
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(24, 24, 24, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  max-width: var(--content-wide);
  margin: 0 auto;
}

.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__logo-img {
  height: 56px;
  width: auto;
  display: block;
  object-fit: contain;
}

@media (max-width: 768px) {
  .site-header__logo-img {
    height: 44px;
  }
}

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

.site-nav__links {
  display: flex;
  list-style: none;
  gap: var(--space-6);
}

.site-nav__links a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--transition-interactive);
}
.site-nav__links a:hover {
  color: var(--color-text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-interactive),
              color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border: none;
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-green);
  transform: translateY(-1px);
  color: #fff;
}
.btn--primary:active {
  transform: translateY(0);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

/* Mobile nav */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  height: 20px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}
.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s var(--ease-out);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: calc(var(--space-16) + var(--space-8));
  padding-bottom: var(--space-16);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(24, 24, 24, 0.6) 0%,
    rgba(24, 24, 24, 0.4) 40%,
    rgba(24, 24, 24, 0.9) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary-soft);
  border: 1px solid rgba(69, 183, 46, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-6);
}

.hero__badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}

.hero__title .highlight {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: var(--space-10);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.hero__stat {
  text-align: left;
}

.hero__stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.hero__stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================
   PAIN POINTS SECTION
   ============================================ */
.pain-points {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-bg);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.6;
}

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

.pain-points__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.pain-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.pain-card:hover {
  border-color: rgba(69, 183, 46, 0.2);
  box-shadow: 0 0 32px var(--color-primary-glow);
}

.pain-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
}

.pain-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.pain-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   WHY PARTNER SECTION
   ============================================ */
.why-partner {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-surface);
}

.why-partner__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.why-partner__image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.why-partner__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xl);
}

.why-partner__content {
  padding-block: var(--space-4);
}

.benefit-list {
  list-style: none;
  padding: 0;
  margin-top: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.benefit-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.benefit-item__check {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  border: 1px solid rgba(69, 183, 46, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-top: 2px;
}

.benefit-item__content h4 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.benefit-item__content p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-bg);
}

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

.how-it-works__header .section-subtitle {
  margin-inline: auto;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.66% + var(--space-4));
  right: calc(16.66% + var(--space-4));
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary) 0%, rgba(69, 183, 46, 0.2) 100%);
}

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

.step__number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  position: relative;
  z-index: 1;
}

.step__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.step__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 280px;
  margin: 0 auto;
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
  position: relative;
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  overflow: hidden;
}

.testimonials__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.testimonials__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.testimonials__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-bg) 0%, rgba(24, 24, 24, 0.85) 30%, rgba(24, 24, 24, 0.85) 70%, var(--color-bg) 100%);
}

.testimonials__inner {
  position: relative;
  z-index: 1;
}

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

.testimonials__header .section-subtitle {
  margin-inline: auto;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.testimonial-card {
  background: rgba(33, 33, 33, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.testimonial-card__stars {
  display: flex;
  gap: 4px;
  margin-bottom: var(--space-4);
  color: var(--color-yellow);
}

.testimonial-card__quote {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-surface-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
}

.testimonial-card__name {
  font-size: var(--text-sm);
  font-weight: 600;
}

.testimonial-card__role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ============================================
   MISSION SECTION
   ============================================ */
.mission {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-surface);
}

.mission__inner {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.mission__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary-soft);
  border: 1px solid rgba(69, 183, 46, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--color-primary);
}

.mission__quote {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.mission__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  background: var(--color-bg);
  text-align: center;
}

.cta__inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.cta__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.cta__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.cta__note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-6);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.site-footer__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-footer__left {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.site-footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.site-footer__links {
  display: flex;
  gap: var(--space-4);
  list-style: none;
}

.site-footer__links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  transition: color var(--transition-interactive);
}
.site-footer__links a:hover {
  color: var(--color-text-muted);
}

.site-footer__attribution {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.site-footer__attribution a {
  color: var(--color-text-faint);
  transition: color var(--transition-interactive);
}
.site-footer__attribution a:hover {
  color: var(--color-text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .pain-points__grid {
    grid-template-columns: 1fr 1fr;
  }
  .testimonials__grid {
    grid-template-columns: 1fr 1fr;
  }
  .testimonials__grid .testimonial-card:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
    margin-inline: auto;
  }
}

@media (max-width: 768px) {
  .site-nav__links { display: none; }
  .mobile-toggle { display: flex; }
  .site-nav .btn--primary { font-size: var(--text-xs); padding: var(--space-2) var(--space-4); }

  .hero {
    min-height: auto;
    padding-top: calc(var(--space-16) + var(--space-12));
    padding-bottom: var(--space-12);
  }

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

  .hero__stats {
    gap: var(--space-6);
    flex-wrap: wrap;
  }

  .pain-points__grid {
    grid-template-columns: 1fr;
  }

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

  .why-partner__image {
    order: -1;
    max-height: 300px;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .steps::before {
    display: none;
  }

  .testimonials__grid {
    grid-template-columns: 1fr;
  }
  .testimonials__grid .testimonial-card:last-child {
    max-width: none;
  }

  .cta__actions {
    flex-direction: column;
    align-items: center;
  }

  .site-footer__inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   PARTNER FORM
   ============================================ */
.partner-form {
  max-width: 480px;
  margin: 0 auto var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  text-align: left;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.form-input {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-base);
  font-family: var(--font-body);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
  outline: none;
  width: 100%;
}

.form-input::placeholder {
  color: var(--color-text-faint);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(69, 183, 46, 0.15);
}

.form-input--error {
  border-color: #e74c3c;
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.15);
}

.form-error {
  font-size: var(--text-xs);
  color: #e74c3c;
  display: none;
  margin-top: var(--space-1);
}

.btn--full {
  width: 100%;
  justify-content: center;
}

.btn__loading {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Success state */
.form-success {
  text-align: center;
  padding: var(--space-8) 0;
}

.form-success__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(69, 183, 46, 0.1);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--color-primary);
}

.form-success__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}

.form-success__text {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 440px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Halftone dot overlay (brand book style element) */
.halftone-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.03;
  background-image: radial-gradient(circle, var(--color-primary) 1px, transparent 1px);
  background-size: 20px 20px;
  z-index: 0;
}