/*
 * SAJECY SOLUTIONS - BALANCED DESIGN SYSTEM
 * Data Center & Network Infrastructure Specialists Who Deliver Complete IT Solutions
 * Version: 1.0
 */

/* ============================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================ */

:root {
  /* Primary Colors - Infrastructure Foundation */
  --primary-dark: #0D1B2A;
  --primary-blue: #1E3A8A;
  --primary-bright: #3B82F6;
  --accent-cyan: #06B6D4;

  /* Secondary Colors - Complete IT Services */
  --secondary-purple: #7C3AED;
  --secondary-green: #10B981;
  --secondary-amber: #F59E0B;

  /* Neutral Scale */
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;

  /* Gradient Overlays */
  --gradient-hero: linear-gradient(135deg, rgba(13, 27, 42, 0.95) 0%, rgba(30, 58, 138, 0.85) 100%);
  --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.9) 100%);
  --gradient-cta: linear-gradient(90deg, #3B82F6 0%, #06B6D4 100%);

  /* Typography */
  --font-display: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Courier New', monospace;

  /* Font Sizes - Mobile First */
  --text-hero: 36px;
  --text-h1: 30px;
  --text-h2: 24px;
  --text-h3: 20px;
  --text-body: 16px;
  --text-small: 14px;
  --text-tiny: 12px;

  /* Line Heights */
  --lh-hero: 40px;
  --lh-h1: 36px;
  --lh-h2: 32px;
  --lh-h3: 28px;
  --lh-body: 24px;
  --lh-small: 20px;
  --lh-tiny: 16px;

  /* Font Weights */
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-black: 900;

  /* Spacing System (8px Grid) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --space-32: 128px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* Desktop Scale (1024px+) */
@media (min-width: 1024px) {
  :root {
    --text-hero: 56px;
    --text-h1: 48px;
    --text-h2: 36px;
    --text-h3: 28px;
    --text-body: 18px;

    --lh-hero: 64px;
    --lh-h1: 56px;
    --lh-h2: 44px;
    --lh-h3: 36px;
    --lh-body: 28px;
  }
}

/* ============================================
   GLOBAL RESETS & BASE STYLES
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--lh-body);
  color: var(--gray-300);
  background-color: var(--primary-dark);
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  color: white;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-h1);
  line-height: var(--lh-h1);
  font-weight: var(--weight-black);
}

h2 {
  font-size: var(--text-h2);
  line-height: var(--lh-h2);
}

h3 {
  font-size: var(--text-h3);
  line-height: var(--lh-h3);
}

p {
  margin-bottom: var(--space-4);
  color: var(--gray-300);
}

a {
  color: var(--primary-bright);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-cyan);
}

a:focus {
  outline: 3px solid var(--primary-bright);
  outline-offset: 2px;
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 32px;
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Primary Button */
.btn-primary {
  background: var(--gradient-cta);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.btn-secondary:hover:not(:disabled) {
  background: white;
  color: var(--primary-dark);
}

/* Dark Button */
.btn-dark {
  background: var(--gray-800);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-dark:hover:not(:disabled) {
  background: var(--gray-700);
  border-color: var(--primary-bright);
}

/* Button Sizes */
.btn-sm {
  padding: 8px 20px;
  font-size: var(--text-small);
}

.btn-lg {
  padding: 16px 40px;
  font-size: var(--text-body);
}

/* Ripple Effect */
.btn::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background: var(--gradient-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-bright);
}

/* Service Cards */
.service-card {
  background: var(--gradient-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-bright);
}

.card-icon,
.service-icon {
  width: 60px;
  height: 60px;
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: var(--radius-md);
}

.card-icon svg,
.service-icon svg {
  width: 32px;
  height: 32px;
  color: var(--primary-bright);
}

.card-title,
.service-title {
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  color: white;
  margin-bottom: var(--space-3);
}

.card-description,
.service-description {
  font-size: var(--text-body);
  color: var(--gray-300);
  margin-bottom: var(--space-6);
  line-height: 1.6;
  flex-grow: 1;
}

.card-features,
.service-features {
  list-style: none;
  margin-bottom: var(--space-6);
}

.card-features li,
.service-features li {
  font-size: var(--text-small);
  color: var(--gray-400);
  padding-left: var(--space-6);
  margin-bottom: var(--space-2);
  position: relative;
}

.card-features li::before,
.service-features li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--secondary-green);
  font-weight: bold;
}

.card-cta,
.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--primary-bright);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  transition: all var(--transition-fast);
  margin-top: auto;
}

.card-cta:hover,
.service-link:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-group {
  margin-bottom: var(--space-6);
}

.form-label,
label {
  display: block;
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  color: var(--gray-300);
  margin-bottom: var(--space-2);
}

.form-input,
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
textarea,
select {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-body);
  transition: all var(--transition-base);
}

.form-input:focus,
input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-bright);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input:disabled,
input:disabled,
textarea:disabled,
select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-input.error,
input.error {
  border-color: #EF4444;
}

.form-input.success,
input.success {
  border-color: var(--secondary-green);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5' stroke='%23CBD5E1' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* ============================================
   BADGES & TAGS
   ============================================ */

.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-tiny);
  font-weight: var(--weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-bright);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--secondary-green);
  border-color: rgba(16, 185, 129, 0.2);
}

.badge-purple {
  background: rgba(124, 58, 237, 0.1);
  color: var(--secondary-purple);
  border-color: rgba(124, 58, 237, 0.2);
}

/* ============================================
   UTILITIES
   ============================================ */

/* Text Alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Display */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }

/* Flex Utilities */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }

/* Gap Utilities */
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Margin Utilities */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* Padding Utilities */
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-24 { padding-top: var(--space-24); padding-bottom: var(--space-24); }

/* Width Utilities */
.w-full { width: 100%; }
.max-w-full { max-width: 100%; }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-bright);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  top: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 1023px) {
  .lg-hidden { display: none !important; }
}

@media (min-width: 1024px) {
  .lg-show { display: block !important; }
}

@media (max-width: 767px) {
  .md-hidden { display: none !important; }
}

@media (min-width: 768px) {
  .md-show { display: block !important; }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  body {
    background: white;
    color: black;
  }

  .no-print {
    display: none !important;
  }
}