/* style.css */

/* --- :ROOT - CSS VARIABLES --- */
:root {
  /* Color Palette (Tetradic) & Neutrals */
  --color-primary: #0D47A1;    /* Deep Blue - For trust and professionalism */
  --color-secondary: #D32F2F;  /* Strong Red - For CTAs and accents */
  --color-tertiary: #388E3C;   /* Solid Green - For success and positive elements */
  --color-accent: #FFA000;     /* Amber - For highlights and secondary info */

  --color-bg: #e0e5ec;
  --color-bg-light: #f7f9fc;
  --color-bg-dark: #2c3e50;

  --color-text-light: #f8f9fa;
  --color-text-dark: #34495e;
  --color-text-headings: #1e2b38;
  --color-text-muted: #7f8c8d;

  /* Fonts */
  --font-headings: 'Poppins', sans-serif;
  --font-body: 'Work Sans', sans-serif;

  /* Neumorphism Shadows */
  --shadow-light: #ffffff;
  --shadow-dark: #a3b1c6;
  --neumorphic-shadow: 6px 6px 12px var(--shadow-dark), -6px -6px 12px var(--shadow-light);
  --neumorphic-shadow-hover: 10px 10px 20px var(--shadow-dark), -10px -10px 20px var(--shadow-light);
  --neumorphic-inset-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light);
  --neumorphic-inset-shadow-focus: inset 2px 2px 4px var(--shadow-dark), inset -2px -2px 4px var(--shadow-light);

  /* Layout */
  --container-width: 1200px;
  --header-height: 80px;
  --border-radius-smooth: 15px;
  --border-radius-sharp: 8px;

  /* Transitions */
  --transition-fast: all 0.2s ease-in-out;
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* --- BASE & TYPOGRAPHY --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-dark);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headings);
  color: var(--color-text-headings);
  font-weight: 700;
  line-height: 1.3;
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

h1 { font-size: 3rem; margin-bottom: 1rem; }
h2 { font-size: 2.5rem; margin-bottom: 2rem; }
h3 { font-size: 1.75rem; margin-bottom: 1rem; }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
  max-width: 75ch;
}

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

a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- LAYOUT & UTILITY CLASSES --- */
.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

.content-container {
    padding: 6rem 0;
}

.section {
  position: relative;
  overflow: hidden;
}

.section-light {
    background-color: var(--color-bg-light);
}

.section-title, .section-subtitle {
  text-align: center;
}

.section-title {
    color: var(--color-text-headings);
    font-size: 2.8rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Initial state for scroll animations */
.scroll-reveal {
  opacity: 1;
  transform: translateY(40px);
  transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
}

/* --- BUTTONS --- */
.btn, button, input[type="submit"] {
  display: inline-block;
  font-family: var(--font-headings);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: none;
  padding: 15px 35px;
  border-radius: 50px;
  transition: var(--transition-smooth);
  box-shadow: var(--neumorphic-shadow);
  background: var(--color-bg);
  color: var(--color-text-dark);
}

.btn:hover, button:hover, input[type="submit"]:hover {
  box-shadow: var(--neumorphic-shadow-hover);
  transform: translateY(-3px);
  color: var(--color-secondary);
  text-decoration: none;
}

.btn:active, button:active, input[type="submit"]:active {
  box-shadow: var(--neumorphic-inset-shadow);
  transform: translateY(1px);
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-text-light);
}

.btn-primary:hover {
  background: var(--color-secondary);
  color: var(--color-text-light);
  filter: brightness(1.1);
}

.btn-secondary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    filter: brightness(1.1);
}


/* --- HEADER --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition-smooth);
  padding: 1rem 0;
  background-color: rgba(224, 229, 236, 0.8);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
}

.nav-logo {
  font-family: var(--font-headings);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
}
.nav-logo:hover { text-decoration: none; }

.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--color-text-dark);
  font-size: 1rem;
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-secondary);
  text-decoration: none;
}

.nav-link-button {
  padding: 10px 25px;
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-radius: 50px;
  transition: var(--transition-smooth);
}
.nav-link-button:hover {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  transform: scale(1.05);
  text-decoration: none;
}

.hamburger {
  display: none;
  cursor: pointer;
}
.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  transition: all 0.3s ease-in-out;
  background-color: var(--color-text-dark);
}

/* --- HERO SECTION --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  text-align: center;
  padding: var(--header-height) 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, rgba(13, 71, 161, 0.6) 0%, rgba(29, 39, 51, 0.7) 100%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--color-text-light);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-light);
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* --- MISSION SECTION --- */
.mission-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  align-items: center;
  gap: 4rem;
}

.mission-image-container img {
  border-radius: var(--border-radius-smooth);
  box-shadow: var(--neumorphic-shadow);
}

.mission-text h3 {
    color: var(--color-primary);
}

/* --- FEATURES SECTION --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  background-color: var(--color-bg);
  padding: 2.5rem 2rem;
  border-radius: var(--border-radius-smooth);
  box-shadow: var(--neumorphic-shadow);
  text-align: center;
  transition: var(--transition-smooth);
}
.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--neumorphic-shadow-hover);
}

.feature-icon {
  margin-bottom: 1.5rem;
}
.feature-icon svg {
  width: 60px;
  height: 60px;
  color: var(--color-primary);
}

.feature-title {
    color: var(--color-text-headings);
    font-size: 1.5rem;
}

/* --- PORTFOLIO & GENERIC CARD SECTION --- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
}

.card {
  background-color: var(--color-bg-light);
  border-radius: var(--border-radius-smooth);
  box-shadow: var(--neumorphic-shadow);
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center; /* Strict requirement */
  text-align: center; /* Strict requirement */
}
.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--neumorphic-shadow-hover);
}

.card-image {
  width: 100%;
  height: 220px; /* Fixed height for consistency */
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Strict requirement */
  transition: transform 0.5s ease;
}
.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: 1.5rem;
  width: 100%;
}

.portfolio-title {
  color: var(--color-primary);
  font-size: 1.4rem;
}

/* --- CLIENTELE SECTION --- */
.client-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 3rem;
}

.client-logos img {
  height: 60px;
  width: auto;
  opacity: 0.7;
  filter: grayscale(100%);
  transition: var(--transition-smooth);
}
.client-logos img:hover {
  opacity: 1;
  filter: grayscale(0);
}

/* --- PRICING SECTION --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  align-items: stretch;
}

.pricing-card {
  background-color: var(--color-bg);
  padding: 2.5rem;
  border-radius: var(--border-radius-smooth);
  box-shadow: var(--neumorphic-shadow);
  display: flex;
  flex-direction: column;
  text-align: center;
  transition: var(--transition-smooth);
}

.pricing-card.popular {
  transform: scale(1.05);
  border: 3px solid var(--color-accent);
  box-shadow: var(--neumorphic-shadow-hover);
}

.popular-badge {
    background-color: var(--color-accent);
    color: var(--color-text-dark);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    margin: -4rem auto 1.5rem;
    display: inline-block;
}

.pricing-title {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-text-headings);
  margin: 1rem 0;
}
.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  margin: 1.5rem 0;
  text-align: left;
  flex-grow: 1;
}
.pricing-features li {
  margin-bottom: 0.8rem;
  padding-left: 2rem;
  position: relative;
}
.pricing-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-tertiary);
  font-weight: bold;
}

/* --- GALLERY SECTION --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}
.gallery-item img {
    border-radius: var(--border-radius-smooth);
    box-shadow: var(--neumorphic-shadow);
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-smooth);
}
.gallery-item img:hover {
    transform: scale(1.03);
    box-shadow: var(--neumorphic-shadow-hover);
}

/* --- COMMUNITY SECTION --- */
.community-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 4rem;
}

.community-image-container img {
  border-radius: var(--border-radius-smooth);
  box-shadow: var(--neumorphic-shadow);
}

.community-text h3 {
    color: var(--color-tertiary);
}


/* --- RESEARCH SECTION --- */
.research-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.research-card {
    display: block;
    background: var(--color-bg);
    padding: 2rem;
    border-radius: var(--border-radius-sharp);
    box-shadow: var(--neumorphic-shadow);
    transition: var(--transition-smooth);
}
.research-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--neumorphic-shadow-hover);
    text-decoration: none;
}
.research-title {
    font-size: 1.2rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}
.research-description {
    font-size: 0.95rem;
    color: var(--color-text-dark);
    margin-bottom: 1rem;
}
.research-url {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-tertiary);
}

/* --- CONTACT SECTION --- */
.contact-wrapper {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--color-bg);
  padding: 3rem;
  border-radius: var(--border-radius-smooth);
  box-shadow: var(--neumorphic-shadow);
}
.contact-form p {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text-muted);
}
.form-group {
  position: relative;
  margin-bottom: 2.5rem;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 15px;
  border: none;
  border-radius: var(--border-radius-sharp);
  background-color: var(--color-bg);
  box-shadow: var(--neumorphic-inset-shadow);
  color: var(--color-text-dark);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition-fast);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}
.form-group select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%2334495e' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  box-shadow: var(--neumorphic-inset-shadow-focus);
}

.form-group label {
  position: absolute;
  top: 15px;
  left: 15px;
  color: var(--color-text-muted);
  transition: var(--transition-smooth);
  pointer-events: none;
}

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
  top: -25px;
  left: 0;
  font-size: 0.8rem;
  color: var(--color-primary);
}
.form-group select:valid {
    color: var(--color-text-dark);
}

.contact-form button {
    width: 100%;
}


/* --- FOOTER --- */
.footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: 4rem 0 2rem;
  clip-path: polygon(0 10%, 100% 0, 100% 100%, 0 100%);
  margin-top: -8vw; /* Adjust to overlap correctly based on clip-path */
  padding-top: 12vw; /* Adjust to create space for the slanted top */
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--color-text-light);
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
  position: relative;
}
.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--color-accent);
}
.footer-col p {
    color: #bdc3c7;
}

.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 0.8rem;
}
.footer-col ul a {
  color: #bdc3c7;
  text-decoration: none;
}
.footer-col ul a:hover {
  color: var(--color-text-light);
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #4a627a;
  color: #95a5a6;
  font-size: 0.9rem;
}

/* --- STATIC & SUCCESS PAGES --- */
.static-page-content, .success-page {
    padding-top: calc(var(--header-height) + 40px);
    padding-bottom: 4rem;
}
.static-page-content .container {
    max-width: 900px;
}
.success-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.success-page h1 {
    color: var(--color-tertiary);
    font-size: 4rem;
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 992px) {
    .mission-content, .community-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .mission-image-container, .community-image-container {
        order: -1;
        margin: 0 auto 2rem;
    }
    .footer {
        clip-path: polygon(0 5%, 100% 0, 100% 100%, 0 100%);
        margin-top: -12vw;
        padding-top: 16vw;
    }
}

@media (max-width: 768px) {
  h1 { font-size: 2.5rem; }
  h2, .section-title { font-size: 2rem; }

  .content-container {
    padding: 4rem 0;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: var(--header-height);
    flex-direction: column;
    background-color: var(--color-bg);
    width: 100%;
    height: calc(100vh - var(--header-height));
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    gap: 1.5rem;
    padding-top: 2rem;
  }
  .nav-menu.active {
    left: 0;
  }
  .hamburger {
    display: block;
  }
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .pricing-card.popular {
      transform: scale(1);
  }

  .footer-grid {
      grid-template-columns: 1fr;
      text-align: center;
  }
  .footer-col h4::after {
      left: 50%;
      transform: translateX(-50%);
  }
  .footer-col ul {
      padding-left: 0;
  }
}