/* ==========================================================================
   SMS PANEL — COMPACT NO-SCROLL SINGLE-SCREEN UI (WHITE & BLUE)
   Engineered to fit 100% within the viewport without scrolling.
   ========================================================================== */

:root {
  --bg-color: #f6f9fc;
  --card-bg: #ffffff;
  
  --primary-blue: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-dark: #1e3a8a;
  --primary-light: #60a5fa;
  --primary-soft: #eff6ff;

  --accent-cyan: #0284c7;
  --accent-cyan-soft: #e0f2fe;

  --success-green: #059669;
  --success-soft: #ecfdf5;
  --success-border: #a7f3d0;

  --text-dark: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;

  --border-light: #e2e8f0;
  --border-blue: rgba(37, 99, 235, 0.16);

  --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --shadow-card: 0 20px 40px -12px rgba(37, 99, 235, 0.12), 0 4px 16px -2px rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 2px 6px rgba(37, 99, 235, 0.08);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  height: 100dvh;
  margin: 0;
  padding: 0;
  overflow: hidden; /* Strict no-scroll for desktop & tablets */
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-dark);
  -webkit-font-smoothing: antialiased;
}

/* Ambient glow backgrounds */
.ambient-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

.glow-top {
  width: 480px;
  height: 480px;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(37, 99, 235, 0.22) 0%, rgba(56, 189, 248, 0.12) 60%, transparent 80%);
}

.glow-bottom {
  width: 380px;
  height: 380px;
  bottom: -100px;
  right: -50px;
  background: radial-gradient(circle, rgba(2, 132, 199, 0.15) 0%, transparent 75%);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-size: 32px 32px;
  background-image: 
    linear-gradient(to right, rgba(37, 99, 235, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.035) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

/* Master Centered Viewport Wrapper */
.viewport-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

/* The Main Single-Screen Maintenance Card */
.maintenance-card {
  width: 100%;
  max-width: 680px;
  max-height: calc(100dvh - 2rem);
  background: var(--card-bg);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: clamp(1.25rem, 2.5vh, 2rem) clamp(1.25rem, 3.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: clamp(0.7rem, 1.6vh, 1.25rem);
  text-align: center;
}

/* Header */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
  color: #ffffff;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-dark);
}

.brand-text span {
  color: var(--primary-blue);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.75rem;
  background: var(--primary-soft);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.pulse-indicator {
  width: 7px;
  height: 7px;
  background-color: #f59e0b;
  border-radius: 50%;
  box-shadow: 0 0 0 rgba(245, 158, 11, 0.6);
  animation: pulseAmber 1.6s infinite;
}

@keyframes pulseAmber {
  0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
  70% { box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* Hero Title & Subtitle */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.2vh, 1.95rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.hero-subtitle {
  font-size: clamp(0.85rem, 1.8vh, 0.95rem);
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 580px;
  margin: 0 auto;
}

.hero-subtitle strong {
  color: var(--primary-dark);
}

/* Security Guarantee Banner */
.security-banner {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
  border: 1.5px solid var(--success-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  text-align: left;
}

.shield-icon {
  width: 40px;
  height: 40px;
  background: #ffffff;
  color: var(--success-green);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 5px rgba(5, 150, 105, 0.15);
}

.security-text {
  display: flex;
  flex-direction: column;
}

.security-text strong {
  color: var(--success-green);
  font-size: clamp(0.85rem, 1.8vh, 0.925rem);
  font-weight: 700;
}

.security-text span {
  color: #065f46;
  font-size: clamp(0.75rem, 1.6vh, 0.825rem);
  line-height: 1.4;
}

/* Launch Box & Countdown */
.launch-box {
  background: var(--primary-soft);
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-md);
  padding: clamp(0.75rem, 1.8vh, 1.15rem) 1rem;
}

.launch-tagline {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: clamp(0.8rem, 1.8vh, 0.875rem);
  color: var(--primary-dark);
  margin-bottom: 0.65rem;
}

.launch-tagline strong {
  color: var(--primary-blue);
  font-weight: 800;
}

.countdown-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.time-unit-box {
  background: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: var(--radius-sm);
  min-width: 60px;
  padding: 0.35rem 0.25rem;
  box-shadow: var(--shadow-sm);
}

.time-unit-box .number {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vh, 1.7rem);
  font-weight: 800;
  line-height: 1;
  color: var(--text-dark);
}

.time-unit-box .active-number {
  color: var(--primary-blue);
  display: inline-block;
  transition: transform 0.15s ease;
}

.time-unit-box .label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  margin-top: 2px;
}

.colon {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-light);
  animation: colonBlink 1s infinite ease-in-out;
  user-select: none;
}

@keyframes colonBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.25; transform: scale(0.95); }
}

.time-unit-box .active-number.pulse {
  animation: tickPulse 0.35s ease-out;
}

@keyframes tickPulse {
  0% { transform: scale(1.1); color: #1d4ed8; }
  100% { transform: scale(1); color: var(--primary-blue); }
}

/* Features Highlights Row */
.features-row {
  display: flex;
  align-items: center;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 0.5rem;
  background: #ffffff;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: clamp(0.725rem, 1.6vh, 0.8rem);
  color: var(--text-muted);
}

.f-dot {
  width: 6px;
  height: 6px;
  background-color: var(--primary-blue);
  border-radius: 50%;
  flex-shrink: 0;
}

.feature-item strong {
  color: var(--text-dark);
}

/* Action Footer & Notify Form */
.action-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.quick-notify-form {
  display: flex;
  gap: 0.4rem;
  flex: 1;
  min-width: 240px;
}

.quick-notify-form input {
  flex: 1;
  padding: 0.55rem 0.85rem;
  font-size: clamp(0.8rem, 1.6vh, 0.875rem);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-sm);
  outline: none;
  font-family: var(--font-sans);
  background: #ffffff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.quick-notify-form input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.quick-notify-form button {
  padding: 0.55rem 1.15rem;
  background: var(--primary-blue);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: clamp(0.8rem, 1.6vh, 0.875rem);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s ease, transform 0.15s ease;
}

.quick-notify-form button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.support-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--border-blue);
  background: var(--primary-soft);
  color: var(--primary-dark);
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: clamp(0.78rem, 1.6vh, 0.825rem);
  font-weight: 600;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.support-link:hover {
  background: #ffffff;
  border-color: var(--primary-blue);
  color: var(--primary-blue);
}

/* System Status Note */
.system-status-note {
  font-size: 0.725rem;
  color: var(--text-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
}

/* Toast Popup */
.toast-popup {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #0f172a;
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
  z-index: 1000;
  pointer-events: none;
}

.toast-popup.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* Mobile Friendly Overrides for Smaller Screens */
@media (max-width: 480px) {
  body {
    overflow-y: auto; /* Allow gentle scroll on tiny phone screens under 500px height if needed */
  }

  .viewport-wrapper {
    height: auto;
    min-height: 100dvh;
    padding: 0.75rem;
  }

  .maintenance-card {
    padding: 1.2rem 1rem;
    gap: 0.85rem;
    max-height: none;
  }

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

  .features-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .action-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .support-link {
    justify-content: center;
  }
}