/* =========================================
   FutureTech 2026 — styles.css
   ========================================= */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --blue: #3b82f6;
  --blue-dark: #2563eb;
  --emerald: #10b981;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-600: #475569;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --white: #ffffff;
  --amber-50: #fffbeb;
  --amber-200: #fde68a;
  --green-100: #dcfce7;
  --green-600: #16a34a;
  --font-display: "Syne", sans-serif;
  --font-body: "DM Sans", sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--slate-50);
  color: var(--slate-900);
}

/* --- Utility --- */
.hidden {
  display: none !important;
}
.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1rem;
}
.container--narrow {
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1rem;
}

/* --- Glass --- */
.glass {
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* =========================================
   HERO
   ========================================= */
.hero {
  background: linear-gradient(
    135deg,
    var(--slate-900) 0%,
    var(--slate-800) 100%
  );
  color: var(--white);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem 1rem;
  position: relative;
  overflow: hidden;
}

.hero-texture {
  position: absolute;
  inset: 0;
  opacity: 0.15;
  background-image: url("https://www.transparenttextures.com/patterns/carbon-fibre.png");
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.accent {
  color: var(--blue);
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--slate-300);
  margin-bottom: 2.5rem;
}

.hero-meta {
  margin-top: 2rem;
  color: var(--slate-400);
  font-size: 0.95rem;
}

/* --- Countdown --- */
.countdown {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.countdown-block {
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  min-width: 80px;
  text-align: center;
}

.countdown-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.countdown-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-300);
}

/* --- Buttons --- */
.btn-primary {
  display: inline-block;
  background: var(--blue);
  color: var(--white);
  padding: 1rem 2.25rem;
  border-radius: 9999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  transition:
    background 0.2s,
    transform 0.2s;
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.35);
}

.btn-primary:hover {
  background: var(--blue-dark);
  transform: scale(1.04);
}

.btn-secondary {
  background: var(--slate-800);
  color: var(--white);
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-family: var(--font-body);
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.btn-secondary:hover {
  background: var(--slate-900);
}

.btn-submit {
  display: block;
  width: 100%;
  background: var(--blue);
  color: var(--white);
  border: none;
  padding: 1rem;
  border-radius: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  transition: background 0.2s;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.25);
}

.btn-submit:hover {
  background: var(--blue-dark);
}

/* =========================================
   PROGRAM
   ========================================= */
.program {
  padding: 5rem 1rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 3.5rem;
}

.program-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .program-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.day-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  padding-left: 1rem;
  margin-bottom: 2rem;
}

.day-title--blue {
  border-left: 4px solid var(--blue);
}
.day-title--emerald {
  border-left: 4px solid var(--emerald);
}

.timeline {
  padding-left: 2rem;
  border-left: 1px solid var(--slate-200);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -2.35rem;
  top: 0.25rem;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
}

.dot--blue {
  background: var(--blue);
}
.dot--emerald {
  background: var(--emerald);
}
.dot--muted {
  background: var(--slate-300);
}

.timeline-time {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 0.2rem;
}

.timeline-time--emerald {
  color: var(--emerald);
}

.timeline-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.timeline-speaker {
  font-size: 0.875rem;
  color: var(--slate-600);
}

/* =========================================
   FAQ
   ========================================= */
.faq {
  padding: 5rem 1rem;
  background: var(--slate-100);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--white);
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

.faq-btn {
  width: 100%;
  padding: 1.1rem 1.5rem;
  text-align: left;
  background: none;
  border: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.15s;
}

.faq-btn:hover {
  background: var(--slate-50);
}

.faq-icon {
  font-size: 1.25rem;
  line-height: 1;
  color: var(--blue);
}

.faq-answer {
  padding: 0 1.5rem 1.1rem;
  font-size: 0.9rem;
  color: var(--slate-600);
  line-height: 1.6;
}

/* =========================================
   REGISTRATION
   ========================================= */
.register {
  padding: 5rem 1rem;
}

.register-card {
  background: var(--white);
  border-radius: 1.25rem;
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--slate-100);
}

@media (min-width: 640px) {
  .register-card {
    padding: 2.5rem;
  }
}

.reg-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--slate-800);
}

.form-input {
  padding: 0.75rem 0.9rem;
  border: 1.5px solid var(--slate-200);
  border-radius: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--slate-900);
  outline: none;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
  background: var(--white);
}

.form-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-select {
  cursor: pointer;
}

/* Ticket Section */
.ticket-section {
  background: var(--slate-100);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

.ticket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
}

@media (max-width: 400px) {
  .ticket-grid {
    grid-template-columns: 1fr;
  }
}

.ticket-option {
  cursor: pointer;
}

.ticket-radio {
  display: none;
}

.ticket-card {
  padding: 1rem;
  border: 2px solid var(--slate-200);
  border-radius: 0.75rem;
  text-align: center;
  transition:
    border-color 0.15s,
    background 0.15s;
  background: var(--white);
}

.ticket-radio:checked + .ticket-card {
  border-color: var(--blue);
  background: #eff6ff;
}

.ticket-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.ticket-price {
  font-weight: 700;
  color: var(--blue);
  font-size: 0.95rem;
}

/* VIP Extras */
.vip-extras {
  background: var(--amber-50);
  border: 1px solid var(--amber-200);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* Range Slider */
.range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 9999px;
  background: var(--slate-200);
  cursor: pointer;
  accent-color: var(--blue);
  margin-top: 0.5rem;
}

.accent-text {
  color: var(--blue);
  font-weight: 700;
}

/* Workshops */
.workshop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 0.5rem;
}

.workshop-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
}

.workshop-option input[type="checkbox"] {
  accent-color: var(--blue);
  width: 1rem;
  height: 1rem;
  cursor: pointer;
}

/* Promo */
.promo-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
}

.promo-input-group {
  flex: 1;
}

.promo-btn-wrap {
  flex-shrink: 0;
  padding-bottom: 0;
}

.promo-feedback {
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

.promo-feedback.success {
  color: var(--green-600);
}
.promo-feedback.error {
  color: #dc2626;
}

/* Total */
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--slate-200);
  padding-top: 1.5rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
}

.total-price {
  color: var(--blue);
}

/* GDPR */
.gdpr-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
}

.gdpr-cb {
  margin-top: 0.15rem;
  accent-color: var(--blue);
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
}

.gdpr-label span {
  font-size: 0.85rem;
  color: var(--slate-600);
  line-height: 1.5;
}

.link {
  color: var(--blue);
  text-decoration: underline;
}

/* =========================================
   MODAL
   ========================================= */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 50;
}

.modal.hidden {
  display: none !important;
}

.modal-inner {
  background: var(--white);
  border-radius: 1.25rem;
  padding: 2.5rem;
  max-width: 28rem;
  width: 100%;
  text-align: center;
}

.modal-check {
  width: 5rem;
  height: 5rem;
  background: var(--green-100);
  color: var(--green-600);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  margin: 0 auto 1.5rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.modal-body {
  color: var(--slate-600);
  margin-bottom: 1rem;
}

.ticket-nr {
  font-family: "Courier New", monospace;
  font-weight: 700;
  color: var(--blue);
}

.modal-note {
  font-size: 0.85rem;
  color: var(--slate-400);
  margin-bottom: 1.5rem;
}