/* forms.css - Ultra Advanced Classical Professional Form Framework */
/* Version 4.0 - Masterpiece Form System with Classical Elegance & Modern Power */

:root {
  /* 🎨 CLASSICAL COLOR PALETTE - Inspired by Historical Manuscripts */
  --form-bg-parchment: #fefef5;
  --form-bg-ivory: #fffff0;
  --form-bg-velvet: #2c1810;
  --form-bg-marble: #f5f2ed;
  --form-bg-gold-leaf: #fff9e6;
  
  /* 🖋️ INK & BORDER COLORS */
  --form-ink-primary: #2c1810;
  --form-ink-secondary: #4a3526;
  --form-ink-muted: #8b7355;
  --form-border-gold: #d4af37;
  --form-border-silver: #c0c0c0;
  --form-border-bronze: #cd7f32;
  --form-border-wood: #8b4513;
  
  /* 📜 PAPER TEXTURES & SHADOWS */
  --form-shadow-classic: 
    0 4px 8px rgba(0, 0, 0, 0.08),
    0 6px 12px rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  
  --form-shadow-elegant:
    0 8px 25px rgba(0, 0, 0, 0.12),
    0 12px 30px rgba(0, 0, 0, 0.08),
    inset 0 2px 0 rgba(255, 255, 255, 0.9),
    inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  
  --form-shadow-embossed:
    inset 0 2px 4px rgba(255, 255, 255, 0.6),
    inset 0 -2px 4px rgba(0, 0, 0, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.1);
  
  /* 🏛️ TYPOGRAPHY */
  --form-font-serif: 'Playfair Display', 'Times New Roman', serif;
  --form-font-sans: 'Inter', 'Helvetica Neue', sans-serif;
  --form-font-script: 'Dancing Script', cursive;
  --form-font-monospace: 'Courier New', monospace;
  
  /* 📐 PRECISE DIMENSIONS */
  --form-padding-sm: 0.75rem 1rem;
  --form-padding-md: 1rem 1.25rem;
  --form-padding-lg: 1.25rem 1.5rem;
  --form-padding-xl: 1.5rem 2rem;
  
  --form-radius-gentle: 6px;
  --form-radius-classic: 8px;
  --form-radius-grand: 12px;
  --form-radius-ornate: 4px 12px 4px 12px;
  
  /* 🎭 MASTERPIECE ANIMATIONS */
  --ease-calligraphy: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-illumination: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-manuscript: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-scroll: cubic-bezier(0.19, 1, 0.22, 1);
}

/* 🏛️ FORM CONTAINER MASTERPIECE */
.form-container {
  background: var(--form-bg-parchment);
  border: 2px solid var(--form-border-wood);
  border-radius: var(--form-radius-grand);
  padding: 2.5rem;
  box-shadow: var(--form-shadow-classic);
  position: relative;
  font-family: var(--form-font-serif);
}

.form-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
  pointer-events: none;
  border-radius: inherit;
}

/* 📜 FORM GROUP ARCHITECTURE */
.form-group {
  margin-bottom: 2rem;
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--form-ink-primary);
  margin-bottom: 0.75rem;
  font-family: var(--form-font-sans);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.form-label::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 30px;
  height: 1px;
  background: var(--form-border-gold);
  transition: width 0.4s var(--ease-calligraphy);
}

.form-group:focus-within .form-label::after {
  width: 100%;
}

/* 🖋️ TEXT INPUTS MASTERPIECE */
.form-input {
  width: 100%;
  padding: var(--form-padding-md);
  font-size: 1rem;
  font-family: var(--form-font-sans);
  background: var(--form-bg-ivory);
  border: 2px solid var(--form-border-wood);
  border-radius: var(--form-radius-classic);
  color: var(--form-ink-primary);
  transition: all 0.4s var(--ease-calligraphy);
  box-shadow: var(--form-shadow-embossed);
  position: relative;
}

.form-input::placeholder {
  color: var(--form-ink-muted);
  font-style: italic;
}

.form-input:focus {
  outline: none;
  border-color: var(--form-border-gold);
  box-shadow: 
    var(--form-shadow-embossed),
    0 0 0 3px rgba(212, 175, 55, 0.1),
    0 0 20px rgba(212, 175, 55, 0.2);
  transform: translateY(-1px);
}

/* 🎨 INPUT VARIANTS */
.form-input-renaissance {
  background: var(--form-bg-parchment);
  border: 2px solid var(--form-border-wood);
  font-family: var(--form-font-serif);
  position: relative;
}

.form-input-renaissance::before {
  content: '';
  position: absolute;
  top: 1px;
  left: 1px;
  right: 1px;
  bottom: 1px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: calc(var(--form-radius-classic) - 2px);
  pointer-events: none;
}

.form-input-baroque {
  background: var(--form-bg-velvet);
  color: #f8f4e9;
  border: 2px solid var(--form-border-gold);
  position: relative;
  overflow: hidden;
}

.form-input-baroque::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, #d4af37, #f9e076, #d4af37);
  border-radius: var(--form-radius-grand);
  z-index: -1;
  opacity: 0.1;
  transition: opacity 0.4s var(--ease-illumination);
}

.form-input-baroque:focus::after {
  opacity: 0.3;
}

.form-input-gold {
  background: linear-gradient(135deg, #fff9e6 0%, #fff0c8 100%);
  border: 2px solid var(--form-border-gold);
  color: var(--form-ink-primary);
}

.form-input-silver {
  background: linear-gradient(135deg, #f8f9fc 0%, #e8e8e8 100%);
  border: 2px solid var(--form-border-silver);
}

/* 📝 TEXTAREA MASTERPIECE */
.form-textarea {
  width: 100%;
  padding: var(--form-padding-md);
  font-size: 1rem;
  font-family: var(--form-font-sans);
  background: var(--form-bg-ivory);
  border: 2px solid var(--form-border-wood);
  border-radius: var(--form-radius-classic);
  color: var(--form-ink-primary);
  transition: all 0.4s var(--ease-calligraphy);
  box-shadow: var(--form-shadow-embossed);
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--form-border-gold);
  box-shadow: 
    var(--form-shadow-embossed),
    0 0 0 3px rgba(212, 175, 55, 0.1),
    0 0 20px rgba(212, 175, 55, 0.2);
}

/* ✅ CHECKBOXES & RADIOS MASTERPIECE */
.form-check {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  cursor: pointer;
  position: relative;
}

.form-check-input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.form-check-box {
  width: 20px;
  height: 20px;
  border: 2px solid var(--form-border-wood);
  border-radius: 4px;
  background: var(--form-bg-ivory);
  position: relative;
  transition: all 0.3s var(--ease-calligraphy);
  box-shadow: var(--form-shadow-embossed);
}

.form-check-input:checked ~ .form-check-box {
  background: var(--form-border-gold);
  border-color: var(--form-border-gold);
}

.form-check-input:checked ~ .form-check-box::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-weight: bold;
  font-size: 12px;
}

.form-check-radio {
  width: 20px;
  height: 20px;
  border: 2px solid var(--form-border-wood);
  border-radius: 50%;
  background: var(--form-bg-ivory);
  position: relative;
  transition: all 0.3s var(--ease-calligraphy);
  box-shadow: var(--form-shadow-embossed);
}

.form-check-input:checked ~ .form-check-radio {
  background: var(--form-border-gold);
  border-color: var(--form-border-gold);
}

.form-check-input:checked ~ .form-check-radio::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: white;
  border-radius: 50%;
}

/* 🎯 SELECT DROPDOWN MASTERPIECE */
.form-select {
  width: 100%;
  padding: var(--form-padding-md);
  font-size: 1rem;
  font-family: var(--form-font-sans);
  background: var(--form-bg-ivory);
  border: 2px solid var(--form-border-wood);
  border-radius: var(--form-radius-classic);
  color: var(--form-ink-primary);
  transition: all 0.4s var(--ease-calligraphy);
  box-shadow: var(--form-shadow-embossed);
  appearance: none;
  background-image: 
    linear-gradient(45deg, transparent 50%, var(--form-ink-muted) 50%),
    linear-gradient(135deg, var(--form-ink-muted) 50%, transparent 50%);
  background-position: 
    calc(100% - 20px) center,
    calc(100% - 15px) center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.form-select:focus {
  outline: none;
  border-color: var(--form-border-gold);
  box-shadow: 
    var(--form-shadow-embossed),
    0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* 📋 RANGE SLIDER MASTERPIECE */
.form-range {
  width: 100%;
  height: 6px;
  background: var(--form-bg-ivory);
  border: 2px solid var(--form-border-wood);
  border-radius: var(--form-radius-pill);
  outline: none;
  box-shadow: var(--form-shadow-embossed);
  appearance: none;
}

.form-range::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--form-border-gold);
  border: 2px solid var(--form-border-wood);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transition: all 0.3s var(--ease-calligraphy);
}

.form-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 
    0 4px 8px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* 🏷️ FORM ELEGANT VARIANTS */
.form-variant-renaissance {
  background: var(--form-bg-parchment);
  border: 3px double var(--form-border-wood);
  font-family: var(--form-font-serif);
}

.form-variant-baroque {
  background: var(--form-bg-velvet);
  color: #f8f4e9;
  border: 2px solid var(--form-border-gold);
  position: relative;
}

.form-variant-baroque::before {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  background: linear-gradient(45deg, #d4af37, #f9e076, #d4af37);
  border-radius: calc(var(--form-radius-grand) + 4px);
  z-index: -1;
  opacity: 0.1;
}

.form-variant-gold {
  background: linear-gradient(135deg, #fff9e6 0%, #fff0c8 100%);
  border: 2px solid var(--form-border-gold);
}

.form-variant-silver {
  background: linear-gradient(135deg, #f8f9fc 0%, #e8e8e8 100%);
  border: 2px solid var(--form-border-silver);
}

/* 🌟 ULTRA ADVANCED ANIMATIONS */
@keyframes formFieldFocus {
  0% {
    transform: translateY(0);
    box-shadow: var(--form-shadow-embossed);
  }
  100% {
    transform: translateY(-2px);
    box-shadow: 
      var(--form-shadow-embossed),
      0 8px 25px rgba(212, 175, 55, 0.15);
  }
}

@keyframes formLabelFloat {
  0% {
    transform: translateY(0) scale(1);
    color: var(--form-ink-primary);
  }
  100% {
    transform: translateY(-100%) scale(0.85);
    color: var(--form-border-gold);
  }
}

@keyframes formInkFlow {
  0% {
    background-size: 0% 2px;
  }
  100% {
    background-size: 100% 2px;
  }
}

@keyframes formPulseGlow {
  0%, 100% {
    box-shadow: 
      var(--form-shadow-embossed),
      0 0 0 rgba(212, 175, 55, 0);
  }
  50% {
    box-shadow: 
      var(--form-shadow-embossed),
      0 0 20px rgba(212, 175, 55, 0.3);
  }
}

/* 🎪 ANIMATION CLASSES */
.form-animate-focus:focus {
  animation: formFieldFocus 0.4s var(--ease-illumination) forwards;
}

.form-animate-glow {
  animation: formPulseGlow 2s var(--ease-calligraphy) infinite;
}

.form-floating-label {
  position: relative;
}

.form-floating-label .form-label {
  position: absolute;
  top: 1rem;
  left: 1.25rem;
  transition: all 0.3s var(--ease-calligraphy);
  pointer-events: none;
  background: var(--form-bg-ivory);
  padding: 0 0.5rem;
}

.form-floating-label .form-input:focus ~ .form-label,
.form-floating-label .form-input:not(:placeholder-shown) ~ .form-label {
  animation: formLabelFloat 0.3s var(--ease-calligraphy) forwards;
}

/* 🛠️ FORM VALIDATION STATES */
.form-input.valid {
  border-color: #10b981;
  box-shadow: 
    var(--form-shadow-embossed),
    0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-input.invalid {
  border-color: #ef4444;
  box-shadow: 
    var(--form-shadow-embossed),
    0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-feedback {
  display: block;
  font-size: 0.875rem;
  margin-top: 0.5rem;
  font-family: var(--form-font-sans);
}

.form-feedback.valid {
  color: #10b981;
}

.form-feedback.invalid {
  color: #ef4444;
}

/* 📦 FORM LAYOUT SYSTEMS */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.form-col-2 {
  grid-template-columns: 1fr 1fr;
}

.form-col-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.form-inline {
  display: flex;
  gap: 1rem;
  align-items: end;
}

/* 🎭 FORM INTERACTIVE ELEMENTS */
.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(139, 115, 85, 0.2);
}

.form-btn {
  padding: 0.875rem 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 2px solid;
  border-radius: var(--form-radius-classic);
  cursor: pointer;
  transition: all 0.4s var(--ease-calligraphy);
  font-family: var(--form-font-sans);
}

.form-btn-primary {
  background: var(--form-border-gold);
  color: var(--form-ink-primary);
  border-color: var(--form-border-gold);
}

.form-btn-secondary {
  background: transparent;
  color: var(--form-ink-primary);
  border-color: var(--form-border-wood);
}

.form-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 📱 ULTRA RESPONSIVE DESIGN */
@media (max-width: 768px) {
  .form-container {
    padding: 2rem 1.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .form-col-2,
  .form-col-3 {
    grid-template-columns: 1fr;
  }
  
  .form-inline {
    flex-direction: column;
    align-items: stretch;
  }
  
  .form-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .form-container {
    padding: 1.5rem 1rem;
  }
  
  .form-input,
  .form-textarea,
  .form-select {
    padding: var(--form-padding-sm);
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
}

/* 🌙 DARK MODE SOPHISTICATION */
@media (prefers-color-scheme: dark) {
  .form-container {
    --form-bg-parchment: #1a1208;
    --form-bg-ivory: #2a1f10;
    --form-ink-primary: #f8f4e9;
    --form-ink-secondary: #d4c6b8;
    --form-ink-muted: #8b7355;
  }
  
  .form-input,
  .form-textarea,
  .form-select {
    background: var(--form-bg-ivory);
    color: var(--form-ink-primary);
    border-color: #5d4037;
  }
}

/* ♿ ULTRA ACCESSIBILITY */
@media (prefers-reduced-motion: reduce) {
  .form-input,
  .form-textarea,
  .form-select,
  .form-check-box,
  .form-check-radio {
    transition: none;
    animation: none;
  }
  
  .form-label::after {
    display: none;
  }
}

@media (prefers-contrast: high) {
  .form-input,
  .form-textarea,
  .form-select {
    border-width: 3px;
  }
  
  .form-check-box,
  .form-check-radio {
    border-width: 3px;
  }
}

/* 🎨 CUSTOM PROPERTY OVERRIDES */
.form-container[style*="--form-bg"] {
  background: var(--form-bg, var(--form-bg-parchment));
}

.form-input[style*="--input-bg"] {
  background: var(--input-bg, var(--form-bg-ivory));
}

/* 🏛️ UTILITY CLASSES FOR PERFECTION */
.form-textured {
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(255,255,255,0.1) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, rgba(0,0,0,0.05) 1px, transparent 1px);
  background-size: 50px 50px, 30px 30px;
}

.form-embossed {
  box-shadow: 
    inset 0 2px 4px rgba(255,255,255,0.8),
    inset 0 -2px 4px rgba(0,0,0,0.1),
    var(--form-shadow-classic);
}

.form-debossed {
  box-shadow: 
    inset 0 -2px 4px rgba(255,255,255,0.5),
    inset 0 2px 4px rgba(0,0,0,0.1),
    var(--form-shadow-classic);
}

.form-gold-foil {
  position: relative;
}

.form-gold-foil::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, 
    transparent 0%,
    rgba(212, 175, 55, 0.05) 50%,
    transparent 100%);
  pointer-events: none;
  z-index: 1;
}

/* 🎭 PRINT PERFECTION */
@media print {
  .form-container {
    background: white !important;
    color: black !important;
    border: 2px solid black !important;
    box-shadow: none !important;
  }
  
  .form-input,
  .form-textarea,
  .form-select {
    background: white !important;
    color: black !important;
    border: 2px solid black !important;
    box-shadow: none !important;
  }
}