/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-block;
  padding: 16px 32px;
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
  border: none;
  border-radius: 0;
  position: relative;
  overflow: hidden;
}

/* Shimmer sweep on hover */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.08) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s var(--ease-smooth);
  pointer-events: none;
}
.btn:hover::after {
  transform: translateX(100%);
}

.btn-primary {
  background-color: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 71, 63, 0.35);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline {
  background-color: transparent;
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
}

.btn-outline:hover {
  background-color: var(--accent-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 71, 63, 0.25);
}

.btn-outline:active {
  transform: translateY(0);
  box-shadow: none;
}


/* =============================================
   CARDS
   ============================================= */
.card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2rem;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
  position: relative;
}

/* Animated tracing border */
.card::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px; bottom: -1px;
  background:
    linear-gradient(var(--accent-color), var(--accent-color)) top center / 0% 2px no-repeat,
    linear-gradient(var(--accent-color), var(--accent-color)) bottom center / 0% 2px no-repeat,
    linear-gradient(var(--accent-color), var(--accent-color)) center left / 2px 0% no-repeat,
    linear-gradient(var(--accent-color), var(--accent-color)) center right / 2px 0% no-repeat;
  pointer-events: none;
  z-index: 5;
  transition: background-size 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 12px 40px rgba(232, 71, 63, 0.15),
    0 2px 8px rgba(0, 0, 0, 0.4),
    0 1px 0 rgba(255, 255, 255, 0.05);
  background-color: var(--surface-elevated);
}

/* Subtle inner top highlight on all cards */
.card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.07), transparent);
  pointer-events: none;
}

.card:hover::before {
  background-size: 100% 2px, 100% 2px, 2px 100%, 2px 100%;
}


/* =============================================
   NAVBAR
   ============================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(13, 13, 16, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: padding var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  padding: 0.9rem 2rem;
  background-color: rgba(13, 13, 16, 0.95);
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.45), 0 1px 0 rgba(255, 255, 255, 0.06);
}

.logo {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: white;
  transition: color var(--transition-fast), letter-spacing var(--transition-fast);
}

.logo:hover {
  color: var(--accent-color);
  letter-spacing: 4px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--text-secondary);
  transition: color var(--transition-fast), letter-spacing var(--transition-fast);
  position: relative;
}

/* Underline slide-in effect */
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-color);
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--accent-color);
}


/* =============================================
   FORM
   ============================================= */
.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 1rem;
  color: white;
  font-family: var(--font-body);
  border-radius: 0;
  outline: none;
  transition:
    border-color var(--transition-base),
    background-color var(--transition-base),
    box-shadow var(--transition-base);
}

.form-control::placeholder {
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-color);
  background-color: var(--surface-elevated);
  box-shadow: 0 0 0 3px rgba(232, 71, 63, 0.12), 0 0 0 1px rgba(232, 71, 63, 0.2);
}

.form-control:focus::placeholder {
  color: var(--text-secondary);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}


/* =============================================
   PROGRESS BARS
   ============================================= */
.progress-container {
  margin-bottom: 1.25rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.progress-container:hover .progress-header {
  color: var(--text-primary);
}

.progress-track {
  width: 100%;
  height: 4px;
  background-color: var(--surface-overlay);
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  width: 0;
  transition: width 1.2s var(--ease-out);
  border-radius: 2px;
  position: relative;
}

/* Shimmer on progress fill */
.progress-fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 40px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0%   { opacity: 0; transform: translateX(0); }
  50%  { opacity: 1; }
  100% { opacity: 0; transform: translateX(-40px); }
}


/* =============================================
   SOCIAL ICONS (FOOTER)
   ============================================= */
.social-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition:
    border-color var(--transition-base),
    color var(--transition-base),
    background-color var(--transition-base),
    transform var(--transition-fast),
    box-shadow var(--transition-base);
  color: var(--text-secondary);
}

.social-icon:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: rgba(232, 71, 63, 0.08);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(232, 71, 63, 0.2);
}


/* =============================================
   HELPERS
   ============================================= */
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-2 { margin-bottom: 1rem; }