/* ==========================================================================
   TABLE OF CONTENTS
   ==========================================================================
   1.  VARIABLES (CUSTOM PROPERTIES)
   2.  GENERAL & RESET STYLES
   3.  REUSABLE COMPONENTS (Buttons, Forms)
   4.  HEADER & NAVIGATION
   5.  MAIN CONTENT SECTIONS
       - Generic Page & Hero Styles
       - Services Page Styles
       - Projects Page Styles
       - About Page Styles
       - Blog Page Styles
       - Contact Page Styles
       - Login/Register Page Styles
   6.  FOOTER
   7.  RESPONSIVE STYLES
   ========================================================================== */

/* ==========================================================================
   1. VARIABLES (CUSTOM PROPERTIES)
   ========================================================================== */
:root {
  /* Colors */
  --color-primary: #06b6d4;
  --color-primary-dark: #0891b2;
  --color-secondary: #8b5cf6;
  --color-text-dark: #1f2937;
  --color-text-body: #4b5563;
  --color-text-muted: #6b7280;
  --color-text-light: #f9fafb;
  --color-border: #e5e7eb;
  --color-bg-light: #f9fafb;
  --color-bg-white: #ffffff;
  --color-bg-off-white: #f8f9fa;
  --color-bg-hero: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  --color-bg-footer: linear-gradient(135deg, #1f2937 0%, #111827 100%);

  /* Typography */
  --font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Spacing */
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Borders & Shadows */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --box-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --box-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --box-shadow-hover: 0 10px 25px rgba(6, 182, 212, 0.15);

  /* Transitions */
  --transition-fast: all 0.3s ease;

  /* Layout */
  --container-width: 1400px;
}

/* ==========================================================================
   2. GENERAL & RESET STYLES
   ========================================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-sans);
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
}

/* Base styles for page content containers */
main > article,
.main-article,
.about-page,
.login-page,
.contact-article,
.blog-page,
.implemet-projects,
.service-page-container {
  max-width: var(--container-width);
  margin: 0 auto;
  background-color: var(--color-bg-white);
  padding: var(--spacing-xl) var(--spacing-lg);
}

.main-article {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Keyframe Animations */
@keyframes blink {
  0%,
  49% {
    opacity: 1;
  }
  50%,
  100% {
    opacity: 0;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

/* ==========================================================================
   3. REUSABLE COMPONENTS (Buttons, Forms)
   ========================================================================== */

/* --- Buttons --- */
.btn-primary,
.btn-secondary {
  padding: var(--spacing-md) 2.5rem;
  font-size: 1.1rem;
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-bg-white);
  box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
  background: var(--color-bg-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-bg-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.3);
}

.btn-icon {
  width: 20px;
  height: 20px;
}

.btn-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.back-to-top {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background-color: var(--color-primary);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex; /* Changed from none to flex */
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.4);
  transition: var(--transition-fast);
  z-index: 999;
  /* Start hidden */
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-5px);
  box-shadow: 0 6px 16px rgba(6, 182, 212, 0.5);
}

.back-to-top:active {
  transform: translateY(-2px);
}

/* --- Forms --- */
.form-container,
.contact-section form {
  background-color: var(--color-bg-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.form-container {
  max-width: 480px;
  width: 100%;
  padding: 3rem 2.5rem;
  background-color: var(--color-bg-white);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-container fieldset,
.contact-section fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.form-container legend {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-body);
  margin-bottom: 1.5rem;
  text-align: center;
  width: 100%;
}

.contact-section legend {
  display: none;
}

.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.form-group label,
.contact-section label {
  display: block;
  font-size: 0.875rem;
  font-weight: var(--font-weight-semibold);
  color: #374151;
  margin-bottom: var(--spacing-sm);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: var(--spacing-md);
  pointer-events: none;
}

.input-icon svg {
  width: 20px;
  height: 20px;
  fill: #9ca3af;
  transition: fill 0.3s ease;
}

.form-container input[type="text"],
.form-container input[type="password"],
.form-container input[type="email"],
.form-container input[type="tel"],
.contact-section input[type="text"],
.contact-section input[type="email"],
.contact-section select,
.contact-section textarea {
  width: 100%;
  padding: 0.875rem var(--spacing-md);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  transition: var(--transition-fast);
  font-family: inherit;
  background-color: var(--color-bg-white);
}

.form-container input,
.contact-section input,
.contact-section select {
  padding-left: var(--spacing-xl);
}

.contact-section select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='%2306B6D4'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: var(--spacing-xl);
}

.contact-section textarea {
  resize: vertical;
  min-height: 150px;
}

.form-container input:focus,
.contact-section input:focus,
.contact-section select:focus,
.contact-section textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-container input:focus + .input-icon svg,
.contact-section input:focus + .input-icon svg,
.contact-section select:focus + .input-icon svg {
  fill: var(--color-primary);
}

.form-container button[type="submit"],
.contact-section button[type="submit"] {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-bg-white);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
  margin-top: var(--spacing-md);
}

.form-container button[type="submit"]:hover,
.contact-section button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.3);
}

.form-container button[type="submit"]:active,
.contact-section button[type="submit"]:active {
  transform: translateY(0);
}

.password-toggle {
  position: absolute;
  right: var(--spacing-md);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.password-toggle svg {
  width: 20px;
  height: 20px;
  fill: #9ca3af;
  transition: fill 0.3s ease;
}

.password-toggle:hover svg {
  fill: var(--color-primary);
}

/* --- Form Validation & Messages --- */
.form-container p {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.form-container p a {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: color 0.3s ease;
}

.form-container p a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.form-container input.error, .contact-section .error {
  border-color: #ef4444;
}
.form-container input.success, .contact-section .success {
  border-color: #10b981;
}

.error-message {
  display: none;
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: 0.25rem;
}
.error-message.show {
  display: block;
}

.success-message {
  display: none;
  background-color: #d1fae5;
  border: 2px solid #10b981;
  color: #065f46;
  padding: var(--spacing-md);
  border-radius: 8px;
  margin-bottom: 1.5rem;
  text-align: center;
  font-weight: var(--font-weight-semibold);
}

.success-message.show {
  display: block;
  animation: slideDown 0.3s ease-out;
}

/* ==========================================================================
   4. HEADER & NAVIGATION
   ========================================================================== */
.header-banner {
  background-color: var(--color-bg-white);
  box-shadow: var(--box-shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}

.header-banner.scrolled {
  box-shadow: var(--box-shadow-md);
}

/* --- Sub Navigation --- */
.sub-nav {
  background-color: var(--color-bg-off-white);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

.sub-nav ul {
  list-style: none;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.sub-nav li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.sub-nav .nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
}

.sub-nav .nav-icon svg {
  width: 16px;
  height: 16px;
  fill: var(--color-primary);
}

.sub-nav a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.sub-nav a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.sub-nav a:hover .nav-icon svg {
  fill: var(--color-primary-dark);
}

/* --- Main Navigation --- */
.main-nav {
  padding: var(--spacing-md) 0;
}

.main-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.5rem;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.main-nav a {
  color: var(--color-text-dark);
  text-decoration: none;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  transition: var(--transition-fast);
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.3s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--color-primary);
  background-color: #f0f9ff;
}

.main-nav a:hover::after {
  width: 80%;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-dark);
  cursor: pointer;
  padding: var(--spacing-sm);
  position: absolute;
  right: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
}

/* ==========================================================================
   5. MAIN CONTENT SECTIONS
   ========================================================================== */

/* --- Generic Page & Hero Styles --- */
.hero-section,
.about-hero,
.projects-hero,
.blog-header {
  text-align: center;
  padding: 4rem var(--spacing-lg) 5rem;
  background: var(--color-bg-hero);
  border-radius: var(--border-radius-lg);
  margin-bottom: 5rem;
}

.hero-section h1,
.projects-hero h1 {
  font-size: 4rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-intro,
.projects-intro {
  font-size: 1.35rem;
  line-height: 1.8;
  color: var(--color-text-dark);
  max-width: 900px;
  margin: 0 auto 2.5rem;
  min-height: 100px;
}
.projects-intro {
  margin-bottom: 0;
}

.typewriter-text,
.projects-typewriter-text,
.blog-typewriter-text {
  display: inline;
  font-weight: var(--font-weight-medium);
  color: var(--color-primary-dark);
}

.typewriter-cursor,
.projects-typewriter-cursor,
.blog-typewriter-cursor {
  display: inline-block;
  width: 3px;
  height: 1.2em;
  background-color: var(--color-primary);
  margin-left: 2px;
  animation: blink 1s infinite;
  vertical-align: middle;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.main-article > h1 {
  font-size: 3.5rem;
  font-weight: var(--font-weight-extrabold);
  text-align: center;
  margin-bottom: 4rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* --- Services Page Styles --- */
.service-hero-section {
    text-align: center;
    padding: 3rem var(--spacing-lg) 4rem;
    background: var(--color-bg-hero);
    border-radius: var(--border-radius-lg);
    margin-bottom: 5rem;
}

.service-hero-section h1 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-dark);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
}

.service-typewriter-wrapper {
    min-height: 80px; /* Prevents layout shift */
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-typewriter {
    font-size: 3rem; /* UPDATED: Smaller than before */
    font-weight: var(--font-weight-extrabold);
    color: var(--color-secondary); /* UPDATED: Changed to magenta */
    letter-spacing: -0.02em;
}

.service-typewriter-source {
    display: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.service-card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: var(--transition-fast);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(139, 92, 246, 0.2);
    border-color: var(--color-secondary);
}

.service-card-icon {
    margin: 0 auto 1.5rem;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card-icon img {
    max-height: 100%;
    max-width: 200px;
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-secondary);
    margin-bottom: 1rem;
}

.service-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-body);
}


/* --- Homepage Services & Project Section Styles (Shared Layout) --- */
.service,
.project-section {
  margin-bottom: 5rem;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.service:hover,
.project-section:hover {
  transform: translateY(-5px);
  box-shadow: var(--box-shadow-hover);
  border-color: var(--color-primary);
}

.service:nth-child(even),
.project-section:nth-child(even) {
  flex-direction: row-reverse;
}

.service-content,
.project-content {
  flex: 1;
  min-width: 0;
}

.service figure,
.project-image {
  flex: 1;
  margin: 0;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service figure {
  display: block;
}

.service h2,
.project-section h3 {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}
.service h2 {
  margin-bottom: var(--spacing-sm);
}
.project-section h3 {
  font-size: 2.25rem;
}

.service h3 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
}

.service p,
.project-section p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-body);
  margin-bottom: var(--spacing-lg);
  max-width: 800px;
}

.service figure img,
.project-section figure img {
  width: 100%;
  max-width: 450px;
  height: 350px;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: var(--box-shadow-sm);
  transition: transform 0.3s ease;
}
.project-section figure img {
  box-shadow: none;
  height: auto;
}

.service:hover figure img,
.project-section:hover figure img {
  transform: scale(1.03);
}

figcaption {
  margin-top: var(--spacing-md);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-style: italic;
}

.project-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem var(--spacing-lg);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  border: 2px solid var(--color-primary);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: none;
  background: var(--color-bg-white);
  color: var(--color-primary);
}
.project-link-btn:hover {
  background: var(--color-primary);
  color: var(--color-bg-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(6, 182, 212, 0.3);
}
.project-link-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* --- About Page Styles --- */
.about-hero {
  padding: 3rem var(--spacing-lg) 4rem;
  margin-bottom: 4rem;
}

.about-hero h1 {
  font-size: 3rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.about-hero h2 {
  font-size: 1.75rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
}

.about-hero p {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-body);
  max-width: 800px;
  margin: 0 auto 1.5rem;
}

.about-hero p:last-child {
  font-size: 1.25rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  margin-top: var(--spacing-lg);
}

.capabilities-section {
  padding: var(--spacing-lg) 0;
}

.capabilities-section > h1 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.02em;
}

.capability-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-top: var(--spacing-lg);
}

.capability-card {
  background-color: var(--color-bg-off-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  text-align: center;
  transition: var(--transition-fast);
}

.capability-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 28px rgba(6, 182, 212, 0.2);
  border-color: var(--color-primary);
}

.capability-card figure {
  margin: 0 0 1.5rem 0;
}

.capability-card img {
  width: 100%;
  max-width: 280px;
  height: 220px;
  object-fit: contain;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.capability-card:hover img {
  transform: scale(1.05);
}

.capability-card h2 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-md);
}

.capability-card p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* --- Blog Page Styles --- */
.blog-header {
  margin-bottom: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

.blog-header-content {
  flex: 1;
  text-align: center;
}

.blog-header h1 {
  font-size: 3rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.blog-subheading {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.blog-header p {
  font-size: 1.25rem;
  color: var(--color-text-dark);
  max-width: 800px;
  margin: 0 auto;
  min-height: 80px;
  line-height: 1.8;
}

.blog-topics-sidebar {
  flex: 0 0 280px;
  text-align: left;
}

.blog-topics-title {
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.blog-topics-title svg {
  width: 24px;
  height: 24px;
  fill: var(--color-primary);
}

.blog-topic-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.blog-topic-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background-color: var(--color-bg-white);
  border: 2px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text-dark);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.blog-topic-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(6, 182, 212, 0.1),
    transparent
  );
  transition: left 0.5s ease;
}

.blog-topic-btn:hover::before {
  left: 100%;
}

.blog-topic-btn:hover {
  border-color: var(--color-primary);
  transform: translateX(5px);
  box-shadow: 0 4px 12px rgba(6, 182, 212, 0.2);
}

.blog-topic-icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.blog-topic-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--color-primary);
  transition: var(--transition-fast);
}

.blog-topic-btn:hover .blog-topic-icon svg {
  fill: var(--color-primary-dark);
  transform: scale(1.1);
}

.blog-topic-arrow {
  margin-left: auto;
  width: 18px;
  height: 18px;
  transition: transform 0.3s ease;
}

.blog-topic-arrow svg {
  width: 100%;
  height: 100%;
  fill: #9ca3af;
}

.blog-topic-btn:hover .blog-topic-arrow {
  transform: translateX(3px);
}
.blog-topic-btn:hover .blog-topic-arrow svg {
  fill: var(--color-primary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.blog-card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: var(--transition-fast);
  cursor: pointer;
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(6, 182, 212, 0.15);
  border-color: var(--color-primary);
}

.blog-card-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.blog-card-image svg {
  width: 120px;
  height: 120px;
  fill: rgba(255, 255, 255, 0.9);
  z-index: 1;
}

.blog-card-content {
  padding: var(--spacing-lg);
}

.blog-meta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.blog-category {
  background-color: #e0f2fe;
  color: var(--color-primary-dark);
  padding: 0.35rem 0.875rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: var(--font-weight-semibold);
}

.blog-date {
  color: #9ca3af;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.blog-date svg {
  width: 14px;
  height: 14px;
  fill: #9ca3af;
}

.blog-card h2 {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.blog-excerpt {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

.blog-read-more {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: gap 0.3s ease;
}

.blog-read-more:hover {
  gap: 0.75rem;
}
.blog-read-more svg {
  width: 18px;
  height: 18px;
  fill: var(--color-primary);
}

/* --- Blog Modal --- */
.blog-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
  z-index: 2000;
  overflow-y: auto;
  padding: var(--spacing-lg);
}

.blog-modal.active {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

.blog-modal-content {
  background-color: var(--color-bg-white);
  max-width: 900px;
  width: 100%;
  border-radius: var(--border-radius-lg);
  position: relative;
  margin: var(--spacing-lg) auto;
  animation: slideUp 0.3s ease-out;
}

.blog-modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background-color: #f3f4f6;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 1;
}

.blog-modal-close:hover {
  background-color: var(--color-primary);
}
.blog-modal-close svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text-muted);
}
.blog-modal-close:hover svg {
  fill: var(--color-bg-white);
}

.blog-modal-header {
  height: 300px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px 16px 0 0;
}

.blog-modal-header svg {
  width: 150px;
  height: 150px;
  fill: rgba(255, 255, 255, 0.9);
}

.blog-modal-body {
  padding: var(--spacing-xl);
}

.blog-modal-body .blog-meta {
  margin-bottom: 1.5rem;
}

.blog-modal-body h2 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-dark);
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.blog-modal-body .blog-content {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-body);
}

.blog-modal-body .blog-content h3 {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.blog-modal-body .blog-content p {
  margin-bottom: 1.5rem;
}

.blog-modal-body .blog-content ul {
  margin-left: var(--spacing-lg);
  margin-bottom: 1.5rem;
}

.blog-modal-body .blog-content li {
  margin-bottom: 0.75rem;
}

/* --- Contact Page Styles --- */
.contact-article,
.login-page {
  min-height: 60vh;
}
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-page > h1 {
  display: none;
}

.contact-section {
  max-width: 700px;
  margin: 0 auto;
}

.contact-section h1 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.contact-section > p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

/* ==========================================================================
   6. FOOTER
   ========================================================================== */
.implement-footer {
  background: var(--color-bg-footer);
  color: var(--color-text-light);
  padding: 4rem var(--spacing-md) var(--spacing-lg);
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  max-width: var(--container-width);
  margin: 0 auto var(--spacing-xl);
  padding: 0 var(--spacing-lg);
}

.footer-copyright {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid #374151;
  color: #9ca3af;
  font-size: 0.875rem;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.implement-footer section {
  animation: fadeInUp 0.6s ease-out;
}

.implement-footer h2 {
  color: var(--color-primary);
  font-size: 1.25rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.implement-footer h2::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--color-secondary);
  border-radius: 2px;
}

.implement-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.implement-footer li {
  margin-bottom: 0.75rem;
}

.implement-footer a {
  color: #d1d5db;
  text-decoration: none;
  transition: var(--transition-fast);
  display: inline-block;
  position: relative;
}

.iMplement-solutions p {
  display: none;
}

.address address {
  font-style: normal;
  line-height: 1.8;
  color: #d1d5db;
}

.address p {
  margin-bottom: 0.75rem;
}

.address .contact-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--spacing-md);
}

.address .contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  min-width: 35px;
  background-color: #374151;
  border-radius: 50%;
  transition: var(--transition-fast);
}

.address .contact-icon svg {
  width: 18px;
  height: 18px;
  fill: var(--color-primary);
}

.address .contact-info:hover .contact-icon {
  background-color: var(--color-primary);
  transform: scale(1.1);
}

.address .contact-info:hover .contact-icon svg {
  fill: var(--color-bg-white);
}

.address .contact-info a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.address .contact-info:hover a {
  color: var(--color-primary);
}

.social-links ul {
  display: flex;
  gap: 1.5rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
  background-color: #374151;
  border-radius: 50%;
  transition: var(--transition-fast);
  position: relative;
}

.social-links a:hover {
  background-color: var(--color-primary);
  transform: translateY(-5px) rotate(5deg);
  box-shadow: 0 8px 16px rgba(6, 182, 212, 0.4);
}

.social-links a svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text-light);
}

/* Specific Footer Link Hover Effects */
.implement-footer .resources a::before,
.implement-footer .iMplement-solutions a::before {
  content: "→";
  position: absolute;
  left: -20px;
  opacity: 0;
  transition: var(--transition-fast);
  color: var(--color-primary);
}

.implement-footer .resources a:hover,
.implement-footer .iMplement-solutions a:hover {
  color: var(--color-primary);
  padding-left: 20px;
}

.implement-footer .resources a:hover::before,
.implement-footer .iMplement-solutions a:hover::before {
  opacity: 1;
  left: 0;
}

/* ==========================================================================
   7. RESPONSIVE STYLES
   ========================================================================== */
@media (max-width: 968px) {
  .sub-nav ul {
    justify-content: center;
    gap: 1rem;
    font-size: 0.8rem;
  }
  .main-nav ul {
    gap: 1.5rem;
  }
  .main-nav a {
    font-size: 0.95rem;
    padding: 0.4rem 0.8rem;
  }
  .project-section {
    padding: 2.5rem;
    gap: 2rem;
  }
  .project-section h3 {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  /* --- General Page Layout --- */
  main > article,
  .main-article,
  .about-page,
  .login-page,
  .contact-article,
  .blog-page,
  .implemet-projects,
  .service-page-container {
    padding: var(--spacing-lg) 1.5rem;
  }

  /* --- Header & Mobile Navigation --- */
  .sub-nav ul {
    gap: 0.75rem;
    padding: 0.5rem 1rem;
  }
  .sub-nav li {
    font-size: 0.75rem;
  }
  .main-nav {
    position: relative;
    padding: 1rem 2rem;
  }
  .mobile-menu-toggle {
    display: block;
    z-index: 1001;
  }

  /* --- Animated Mobile Menu --- */
  .main-nav ul {
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    margin-top: 1rem;
    background-color: var(--color-bg-white);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    box-shadow: var(--box-shadow-md);
    
    /* Animation Properties */
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out, opacity 0.3s ease-in-out, visibility 0.4s;
  }

  .main-nav ul.active {
    max-height: 50vh; /* Use a relative unit that will be tall enough */
    opacity: 1;
    visibility: visible;
  }

  .main-nav li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }
  .main-nav li:last-child {
    border-bottom: none;
  }
  .main-nav a {
    display: block;
    width: 100%;
    padding: 1rem;
    border-radius: 0;
  }
  .main-nav a::after {
    display: none;
  }

  /* --- Content Sections --- */
  .main-article > h1 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
  }
  .hero-section,
  .projects-hero {
    padding: 3rem 1.5rem 4rem;
  }
  .hero-section h1,
  .projects-hero h1 {
    font-size: 2.75rem;
  }
  .hero-intro,
  .projects-intro {
    font-size: 1.15rem;
    min-height: 120px;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }

  .service,
  .service:nth-child(even),
  .project-section,
  .project-section:nth-child(even) {
    flex-direction: column !important;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    text-align: center;
  }
  
  .service p, .project-section p {
      margin-left: auto;
      margin-right: auto;
  }

  .service-content {
    width: 100%;
  }
  .service figure {
    width: 100%;
  }
  figure img {
    max-width: 100%;
    height: auto;
    min-height: 250px;
  }
  .service h2 {
    font-size: 1.5rem;
  }
  .service h3 {
    font-size: 1.25rem;
  }
  .service p {
    font-size: 1rem;
  }

  .service-hero-section {
      padding: 2rem 1.5rem 3rem;
  }
  .service-typewriter {
      font-size: 2.25rem; /* UPDATED: Smaller for mobile */
  }
  .services-grid {
      grid-template-columns: 1fr;
  }

  .about-hero {
    padding: 2rem 1.5rem 3rem;
  }
  .about-hero h1 {
    font-size: 2.25rem;
  }
  .about-hero h2 {
    font-size: 1.5rem;
  }
  .about-hero p {
    font-size: 1rem;
  }
  .about-hero p:last-child {
    font-size: 1.1rem;
  }
  .capabilities-section > h1 {
    font-size: 2rem;
  }
  .capability-cards {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .capability-card {
    padding: 1.5rem;
  }
  .capability-card img {
    max-width: 240px;
    height: 180px;
  }

  .blog-header {
    flex-direction: column;
    gap: 2rem;
  }
  .blog-topics-sidebar {
    width: 100%;
    max-width: 400px;
  }
  .blog-topics-title {
    justify-content: center;
  }
  .blog-header h1 {
    font-size: 2.25rem;
  }
  .blog-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .blog-modal {
    padding: 1rem;
  }
  .blog-modal-content {
    margin: 1rem auto;
  }
  .blog-modal-body {
    padding: 2rem 1.5rem;
  }
  .blog-modal-body h2 {
    font-size: 2rem;
  }
  .blog-modal-body .blog-content {
    font-size: 1rem;
  }

  .contact-section h1 {
    font-size: 2rem;
  }
  .contact-section > p {
    font-size: 1rem;
  }
  .contact-section form {
    padding: 2rem 1.5rem;
  }
  .form-container {
    padding: 2rem 1.5rem;
  }
  .form-container h1 {
    font-size: 1.75rem;
  }

  /* --- Footer --- */
  .implement-footer {
    padding: 3rem 1.5rem 2rem;
  }
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .back-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 45px;
    height: 45px;
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  .main-nav {
    padding: 1rem;
  }
  .mobile-menu-toggle {
    right: 1rem;
  }

  .main-article > h1 {
    font-size: 2rem;
  }
  .hero-section h1,
  .projects-hero h1 {
    font-size: 2.25rem;
  }
  .hero-intro,
  .projects-intro {
    font-size: 1rem;
  }
  .btn-primary,
  .btn-secondary {
    padding: 0.875rem 2rem;
    font-size: 1rem;
  }

  .service,
  .project-section {
    padding: 1.5rem;
  }
  .service h2 {
    font-size: 1.25rem;
  }
  .service h3 {
    font-size: 1.1rem;
  }
  .project-section h3 {
    font-size: 1.75rem;
  }
  .project-section p {
    font-size: 1rem;
  }
  
  .service-typewriter {
      font-size: 1.75rem; /* UPDATED: Smaller for small mobile */
  }

  .about-hero h1 {
    font-size: 1.875rem;
  }
  .about-hero h2 {
    font-size: 1.25rem;
  }
  .capabilities-section > h1 {
    font-size: 1.75rem;
  }
  .capability-card h2 {
    font-size: 1.25rem;
  }

  .blog-header {
    padding: 2rem 1.5rem;
  }
  .blog-header h1 {
    font-size: 1.875rem;
  }
  .blog-card h2 {
    font-size: 1.5rem;
  }
  .blog-modal-body {
    padding: 1.5rem;
  }
  .blog-modal-body h2 {
    font-size: 1.75rem;
  }
  .blog-modal-body .blog-content h3 {
    font-size: 1.5rem;
  }

  .contact-section h1 {
    font-size: 1.75rem;
  }
  .contact-section form {
    padding: 1.5rem 1.25rem;
  }
  .contact-section button[type="submit"] {
    font-size: 1rem;
  }
  .form-container {
    padding: 1.5rem 1.25rem;
  }
  .form-container h1 {
    font-size: 1.5rem;
  }

  .implement-footer {
    padding: 2rem 1rem 1.5rem;
  }
  .implement-footer h2 {
    font-size: 1.1rem;
  }
  .back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    font-size: 1.1rem;
  }
}