/* ============================================
   AimedAds — Design Tokens & Components
   Dark ad-tech aesthetic with cyan + coral accents
   ============================================ */

: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);

  /* 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;

  /* Dark palette — ad-tech / performance marketing */
  --color-bg: #0A0B10;
  --color-surface: #12131A;
  --color-surface-2: #1A1B24;
  --color-surface-3: #22232E;
  --color-border: rgba(255, 255, 255, 0.07);
  --color-border-strong: rgba(255, 255, 255, 0.12);

  --color-text: #E8E9F0;
  --color-text-muted: #8B8DA0;
  --color-text-faint: #52546A;

  /* Accent: Cyan (tech / data) */
  --color-accent: #00CFFF;
  --color-accent-hover: #00B0DB;
  --color-accent-glow: rgba(0, 207, 255, 0.15);

  /* CTA: Coral (action / energy) */
  --color-cta: #FF5C3A;
  --color-cta-hover: #E04A2B;
  --color-cta-glow: rgba(255, 92, 58, 0.15);

  /* Semantic */
  --color-success: #3DDC84;
  --color-warning: #FFB347;

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

  /* 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);

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

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

/* ============================================
   GLOBAL
   ============================================ */

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}

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

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-inline: var(--space-8);
  }
}

/* ============================================
   HEADER / NAV
   ============================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}
.site-header.nav-open {
  background: var(--color-bg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}
.logo svg {
  width: 36px;
  height: 36px;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-lg);
  letter-spacing: -0.02em;
}
.logo-text span {
  color: var(--color-accent);
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
}
.nav-desktop a {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.nav-desktop a:hover {
  color: var(--color-text);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-cta);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  white-space: nowrap;
}
.btn-cta:hover {
  background: var(--color-cta-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--color-cta-glow);
}

.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--color-text);
}
@media (min-width: 768px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  top: 0;
  background: var(--color-bg);
  z-index: 99;
  padding: calc(60px + var(--space-8)) var(--space-6) var(--space-8);
  flex-direction: column;
  gap: var(--space-2);
}
.mobile-nav.open {
  display: flex;
}
.mobile-nav a {
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: 600;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  border-bottom: none;
}
.mobile-nav a:hover,
.mobile-nav a:active {
  background: var(--color-surface-2);
  color: var(--color-accent);
}

/* ============================================
   HERO
   ============================================ */

.hero {
  position: relative;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) 0 clamp(var(--space-12), 8vw, var(--space-24));
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-bg::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 70%;
  height: 70%;
  border-radius: 50%;
  background: radial-gradient(ellipse, var(--color-accent-glow) 0%, transparent 70%);
  filter: blur(80px);
}
.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 50%;
  height: 50%;
  border-radius: 50%;
  background: radial-gradient(ellipse, var(--color-cta-glow) 0%, transparent 70%);
  filter: blur(80px);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: var(--space-6);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-6);
}
.hero h1 .accent {
  color: var(--color-accent);
}

.hero-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  text-decoration: none;
}
.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-glow);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.stat-item {
  text-align: left;
}
.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================
   SECTION SHARED
   ============================================ */

.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) 0;
}

.section-header {
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* Divider between sections */
.section + .section {
  border-top: 1px solid var(--color-border);
}

/* ============================================
   AD FORMATS
   ============================================ */

.formats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .formats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.format-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}
.format-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.format-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--color-accent);
}

.format-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.format-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.format-features {
  list-style: none;
  padding: 0;
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.format-features li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}
.format-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.45em;
}

/* ============================================
   VERTICALS
   ============================================ */

.verticals-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 600px) {
  .verticals-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .verticals-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .verticals-grid .vertical-card:nth-child(4),
  .verticals-grid .vertical-card:nth-child(5) {
    /* last two cards centered */
  }
}

.vertical-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  align-items: flex-start;
}
.vertical-card:hover {
  border-color: var(--color-border-strong);
}

.vertical-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cta);
  background: var(--color-cta-glow);
  border-radius: var(--radius-md);
}

.vertical-content h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}
.vertical-content p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   TARGETING
   ============================================ */

.targeting-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .targeting-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

.targeting-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.targeting-card:hover {
  border-color: var(--color-border-strong);
}

.targeting-icon-wrap {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  color: var(--color-accent);
  border-radius: var(--radius-md);
}

.targeting-content h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-1);
}
.targeting-content p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   OPTIMIZATION
   ============================================ */

.optim-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.optim-intro p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 720px;
  line-height: 1.75;
}

.optim-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .optim-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.optim-card {
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.optim-card:hover {
  border-color: var(--color-border-strong);
}

.optim-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  background: var(--color-accent-glow);
  border-radius: var(--radius-md);
}

.optim-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
}

.optim-card p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   WHY VIDEO
   ============================================ */

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .why-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.why-card {
  padding: var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: left;
}

.why-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-3);
  letter-spacing: -0.02em;
}

.why-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.why-card p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   FAQ
   ============================================ */

.faq-list {
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.faq-item:hover {
  border-color: var(--color-border-strong);
}
.faq-item[open] {
  border-color: var(--color-border-strong);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  list-style: none;
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question::marker {
  content: '';
}
.faq-question:hover {
  color: var(--color-accent);
}

.faq-chevron {
  flex-shrink: 0;
  color: var(--color-text-faint);
  transition: transform 250ms ease;
}
.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.faq-answer {
  padding: 0 var(--space-5) var(--space-5);
}
.faq-answer p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.75;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: flex-start;
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

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

.contact-detail {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.contact-detail svg {
  flex-shrink: 0;
  color: var(--color-accent);
  width: 20px;
  height: 20px;
}

.contact-form {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-faint);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238B8DA0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.btn-submit {
  width: 100%;
  padding: var(--space-3) var(--space-6);
  background: var(--color-cta);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
}
.btn-submit:hover {
  background: var(--color-cta-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--color-cta-glow);
}

.form-note {
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-align: center;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  padding: var(--space-8) 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-company {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-links {
  display: flex;
  gap: var(--space-4);
}
.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.footer-links a:hover {
  color: var(--color-accent);
}

/* ============================================
   ANIMATIONS (scroll reveal)
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}