/**
 * MLG Solutions - Main Stylesheet
 * Mobile-First Responsive Design
 */

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

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

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--deep-blue);
  background: var(--white);
  overflow-x: hidden;
}

/* === HEADER === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--white);
  transition: all var(--transition-base);
  border-bottom: 1px solid transparent;
}

.header--scrolled {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  box-shadow: var(--shadow-base);
  border-bottom-color: var(--glass-border);
}

.header__container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: padding var(--transition-base);
}

.header--scrolled .header__container {
  padding: var(--space-md) var(--space-md);
}

.header__logo {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--deep-blue);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  z-index: 1001;
}

.header__logo-symbol {
  width: 40px;
  height: 40px;
  background: var(--gradient-blue-pink);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  transition: transform var(--transition-base);
}

.header__logo:hover .header__logo-symbol {
  transform: rotate(5deg) scale(1.05);
}

/* === NAVIGATION === */
.nav {
  display: none;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--deep-blue);
  text-decoration: none;
  padding: var(--space-sm) 0;
  position: relative;
  transition: color var(--transition-base);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--coral-pink);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--coral-pink);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

@media (min-width: 1024px) {
  .nav {
    display: block;
  }
}

/* === MOBILE MENU === */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
  position: relative;
}

.mobile-menu-toggle__bar {
  width: 25px;
  height: 2px;
  background: var(--deep-blue);
  transition: all var(--transition-base);
}

.mobile-menu-toggle--active .mobile-menu-toggle__bar:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

.mobile-menu-toggle--active .mobile-menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle--active .mobile-menu-toggle__bar:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 400px;
  height: 100vh;
  background: var(--white);
  box-shadow: var(--shadow-xl);
  padding: var(--space-4xl) var(--space-xl);
  transition: right var(--transition-base);
  z-index: 1000;
  overflow-y: auto;
}

.mobile-menu--active {
  right: 0;
}

.mobile-menu__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.mobile-menu__link {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--deep-blue);
  text-decoration: none;
  padding: var(--space-md) 0;
  display: block;
  border-bottom: 1px solid var(--deep-blue-10);
  transition: color var(--transition-base), padding-left var(--transition-base);
}

.mobile-menu__link:hover,
.mobile-menu__link--active {
  color: var(--coral-pink);
  padding-left: var(--space-md);
}

.mobile-menu__cta {
  margin-top: var(--space-xl);
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 42, 86, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: 999;
}

.mobile-menu-overlay--active {
  opacity: 1;
  visibility: visible;
}

/* === HERO SECTION === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--deep-blue-80) 100%);
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: var(--gradient-blue-teal);
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(80px);
  animation: float 6s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: var(--coral-pink);
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(80px);
  animation: float 8s ease-in-out infinite;
  animation-delay: 1s;
}

.hero__container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md);
  display: grid;
  gap: var(--space-3xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (min-width: 1024px) {
  .hero__container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
  }
}

.hero__content {
  text-align: center;
}

@media (min-width: 1024px) {
  .hero__content {
    text-align: left;
  }
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-xl);
  box-shadow: var(--glass-shadow);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: 600;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: var(--font-size-6xl);
  }
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: 300;
  color: var(--white-90);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 1024px) {
  .hero__subtitle {
    font-size: var(--font-size-xl);
    margin-left: 0;
  }
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

@media (min-width: 768px) {
  .hero__cta {
    flex-direction: row;
  }
}

@media (min-width: 1024px) {
  .hero__cta {
    justify-content: flex-start;
  }
}

.hero__image {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.hero__image-wrapper {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero__image-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 0%,
    rgba(255, 106, 149, 0.2) 100%
  );
  z-index: 1;
}

.hero__image img {
  width: 100%;
  height: auto;
  display: block;
}

.hero__image-decoration {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 200px;
  height: 200px;
  background: var(--gradient-blue-pink);
  border-radius: 50%;
  opacity: 0.2;
  filter: blur(60px);
  z-index: 0;
}

/* === INTRODUCTION === */
.introduction {
  padding: var(--space-4xl) var(--space-md);
  text-align: center;
  position: relative;
}

.introduction__content {
  max-width: 900px;
  margin: 0 auto;
}

.introduction__title {
  font-family: var(--font-display);
  font-size: var(--font-size-3xl);
  font-weight: 600;
  color: var(--deep-blue);
  margin-bottom: var(--space-lg);
  line-height: 1.3;
}

@media (min-width: 768px) {
  .introduction__title {
    font-size: var(--font-size-4xl);
  }
}

.introduction__text {
  font-size: var(--font-size-lg);
  color: var(--deep-blue-80);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.introduction__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--coral-pink);
  font-weight: 600;
  text-decoration: none;
  margin-top: var(--space-lg);
  transition: gap var(--transition-base);
}

.introduction__link:hover {
  gap: var(--space-md);
}

/* === PILLARS === */
.pillars {
  padding: var(--space-4xl) var(--space-md);
  background: var(--deep-blue-05);
  position: relative;
}

.pillars__grid {
  max-width: 1400px;
  margin: 0 auto;
}

.pillar-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-base);
  transition: all var(--transition-base);
  cursor: pointer;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.pillar-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.pillar-card__image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.pillar-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.pillar-card:hover .pillar-card__image img {
  transform: scale(1.1);
}

.pillar-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(3, 42, 86, 0.8) 0%,
    transparent 100%
  );
  display: flex;
  align-items: flex-end;
  padding: var(--space-xl);
}

.pillar-card__icon {
  width: 50px;
  height: 50px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
}

.pillar-card__body {
  padding: var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.pillar-card__title {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--deep-blue);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.pillar-card__description {
  font-size: var(--font-size-base);
  color: var(--deep-blue-80);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex: 1;
}

.pillar-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--coral-pink);
  font-weight: 600;
  text-decoration: none;
  transition: gap var(--transition-base);
}

.pillar-card__link:hover {
  gap: var(--space-md);
}

/* === EVENTS === */
.events {
  padding: var(--space-4xl) var(--space-md);
  position: relative;
}

.events__header {
  max-width: 1400px;
  margin: 0 auto var(--space-3xl);
}

.events__grid {
  max-width: 1400px;
  margin: 0 auto;
}

.event-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-base);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.event-card__image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.event-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.event-card__badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.event-card__body {
  padding: var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.event-card__date {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--coral-pink);
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}

.event-card__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--deep-blue);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.event-card__description {
  font-size: var(--font-size-base);
  color: var(--deep-blue-80);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  flex: 1;
}

.event-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--deep-blue-10);
}

.event-card__location {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--deep-blue-60);
  font-size: var(--font-size-sm);
}

/* === TESTIMONIALS === */
.testimonials {
  padding: var(--space-4xl) var(--space-md);
  background: linear-gradient(135deg, var(--deep-blue) 0%, var(--deep-blue-80) 100%);
  position: relative;
  overflow: hidden;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: var(--coral-pink);
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(100px);
}

.testimonials__header {
  max-width: 1400px;
  margin: 0 auto var(--space-3xl);
}

.testimonials__title {
  color: var(--white);
}

.testimonials__slider {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.testimonial-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--glass-shadow);
}

.testimonial-card__quote {
  font-size: var(--font-size-lg);
  color: var(--white);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  font-style: italic;
}

.testimonial-card__quote::before {
  content: '"';
  font-size: var(--font-size-4xl);
  color: var(--coral-pink);
  line-height: 0;
  display: block;
  margin-bottom: var(--space-md);
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-card__avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-blue-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: var(--font-size-xl);
}

.testimonial-card__name {
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-xs);
}

.testimonial-card__role {
  font-size: var(--font-size-sm);
  color: var(--white-80);
}

/* === FAQ === */
.faq {
  padding: var(--space-4xl) var(--space-md);
  background: var(--white);
}

.faq__container {
  max-width: 900px;
  margin: 0 auto;
}

.faq__header {
  margin-bottom: var(--space-3xl);
}

.faq__item {
  background: var(--white);
  border: 1px solid var(--deep-blue-10);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq__item:hover {
  border-color: var(--coral-pink);
  box-shadow: var(--shadow-sm);
}

.faq__question {
  width: 100%;
  text-align: left;
  padding: var(--space-lg) var(--space-xl);
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--deep-blue);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  transition: color var(--transition-base);
}

.faq__question:hover {
  color: var(--coral-pink);
}

.faq__icon {
  font-size: var(--font-size-xl);
  color: var(--coral-pink);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq__item--active .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq__answer-content {
  padding: 0 var(--space-xl) var(--space-lg);
  color: var(--deep-blue-80);
  line-height: 1.8;
}

.faq__item--active .faq__answer {
  max-height: 500px;
}

/* === CTA === */
.cta {
  padding: var(--space-4xl) var(--space-md);
  background: var(--gradient-blue-pink);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: var(--white);
  border-radius: 50%;
  opacity: 0.05;
  filter: blur(80px);
}

.cta__container {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta__title {
  font-family: var(--font-display);
  font-size: var(--font-size-4xl);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-lg);
  line-height: 1.3;
}

@media (min-width: 768px) {
  .cta__title {
    font-size: var(--font-size-5xl);
  }
}

.cta__text {
  font-size: var(--font-size-lg);
  color: var(--white-90);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

@media (min-width: 768px) {
  .cta__buttons {
    flex-direction: row;
    justify-content: center;
  }
}

.cta__newsletter {
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .newsletter-form {
    flex-direction: row;
  }
}

.newsletter-form__input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--white-80);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  color: var(--white);
  transition: border-color var(--transition-base);
}

.newsletter-form__input::placeholder {
  color: var(--white-80);
}

.newsletter-form__input:focus {
  outline: none;
  border-color: var(--white);
}

/* === FOOTER === */
.footer {
  background: var(--deep-blue);
  color: var(--white);
  padding: var(--space-4xl) var(--space-md) var(--space-xl);
}

.footer__container {
  max-width: 1400px;
  margin: 0 auto;
}

.footer__top {
  display: grid;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid var(--white-80);
}

@media (min-width: 768px) {
  .footer__top {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer__description {
  color: var(--white-80);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.footer__social {
  display: flex;
  gap: var(--space-md);
}

.footer__social-link {
  width: 44px;
  height: 44px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  -webkit-backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-decoration: none;
  transition: all var(--transition-base);
}

.footer__social-link:hover {
  background: var(--coral-pink);
  transform: translateY(-2px);
}

.footer__column-title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

.footer__links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__link {
  color: var(--white-80);
  text-decoration: none;
  transition: color var(--transition-base), padding-left var(--transition-base);
  display: inline-block;
}

.footer__link:hover {
  color: var(--coral-pink);
  padding-left: var(--space-sm);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  color: var(--white-80);
  font-size: var(--font-size-sm);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  justify-content: center;
}

@media (min-width: 768px) {
  .footer__legal {
    justify-content: flex-end;
  }
}

.footer__legal-link {
  color: var(--white-80);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
}

.footer__legal-link:hover {
  color: var(--coral-pink);
}

/* === UTILITIES === */
.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;
}

.text-center {
  text-align: center;
}

.mt-auto {
  margin-top: auto;
}