/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@400;500;600;700&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
  --header-height: 3.5rem;

  /* ===== Colors ===== */
  --primary-color: #4ade80;
  --primary-color-alt: #22c55e;
  --secondary-color: #f97316;
  --title-color: #1f2937;
  --text-color: #6b7280;
  --text-color-light: #9ca3af;
  --body-color: #ffffff;
  --container-color: #ffffff;
  --border-color: #e5e7eb;
  --shadow-color: rgba(0, 0, 0, 0.1);
  
  /* Gradient Colors */
  --gradient-primary: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
  --gradient-secondary: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  --gradient-soft: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);

  /* ===== Font and Typography ===== */
  --body-font: 'Inter', sans-serif;
  --title-font: 'Playfair Display', serif;
  --biggest-font-size: 3rem;
  --h1-font-size: 2.25rem;
  --h2-font-size: 1.875rem;
  --h3-font-size: 1.5rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.75rem;

  /* ===== Font Weight ===== */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;

  /* ===== Margins Bottom ===== */
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --mb-1-25: 1.25rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;

  /* ===== Z Index ===== */
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;

  /* ===== Transitions ===== */
  --transition: all 0.3s ease;
  --transition-slow: all 0.5s ease;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media screen and (max-width: 992px) {
  :root {
    --biggest-font-size: 2.5rem;
    --h1-font-size: 2rem;
    --h2-font-size: 1.5rem;
    --h3-font-size: 1.25rem;
    --normal-font-size: 0.938rem;
    --small-font-size: 0.813rem;
    --smaller-font-size: 0.75rem;
  }
}

/* ===== BASE ===== */
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body,
button,
input,
textarea {
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
}

body {
  background-color: var(--body-color);
  color: var(--text-color);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  color: var(--title-color);
  font-weight: var(--font-semi-bold);
  font-family: var(--title-font);
  line-height: 1.2;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

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

button {
  cursor: pointer;
  border: none;
  outline: none;
}

/* ===== REUSABLE CSS CLASSES ===== */
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.grid {
  display: grid;
}

.section {
  padding: 6rem 0 2rem;
}

.section__subtitle {
  display: block;
  font-size: var(--small-font-size);
  color: var(--primary-color);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-0-5);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section__title {
  font-size: var(--h2-font-size);
  margin-bottom: var(--mb-1);
  font-family: var(--title-font);
}

.section__description {
  color: var(--text-color);
  max-width: 600px;
  margin: 0 auto var(--mb-2-5);
  text-align: center;
}

.section__header {
  text-align: center;
  margin-bottom: var(--mb-3);
}

/* ===== BUTTONS ===== */
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gradient-primary);
  color: white;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: var(--font-medium);
  transition: var(--transition);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: var(--normal-font-size);
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(74, 222, 128, 0.3);
}

.button--primary {
  background: var(--gradient-primary);
}

.button--secondary {
  background: var(--gradient-secondary);
}

.button--ghost {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.button--ghost:hover {
  background: var(--primary-color);
  color: white;
}

.button--outline {
  background: transparent;
  color: var(--title-color);
  border: 2px solid var(--border-color);
}

.button--outline:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.button--disabled {
  background: var(--text-color-light);
  cursor: not-allowed;
  opacity: 0.6;
}

.button--disabled:hover {
  transform: none;
  box-shadow: none;
}

/* ===== HEADER & NAV ===== */
.header {
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  transition: var(--transition);
  border-bottom: 1px solid var(--border-color);
}

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

.nav__logo-img {
  height: 40px;
  width: auto;
}

.nav__list {
  display: flex;
  column-gap: 2rem;
}

.nav__link {
  color: var(--title-color);
  font-weight: var(--font-medium);
  transition: var(--transition);
  position: relative;
}

.nav__link:hover,
.nav__link.active-link {
  color: var(--primary-color);
}

.nav__link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: var(--gradient-primary);
  transition: var(--transition);
}

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

.nav__toggle,
.nav__close {
  display: none;
}

/* ===== HOME ===== */
.home {
  padding: 8rem 0 4rem;
  background: var(--gradient-soft);
  position: relative;
  overflow: hidden;
}

.home__container {
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-items: center;
}

.home__subtitle {
  font-size: var(--small-font-size);
  color: var(--primary-color);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-0-5);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.home__title {
  font-size: var(--biggest-font-size);
  font-family: var(--title-font);
  margin-bottom: var(--mb-1);
  line-height: 1.1;
}

.home__title .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.home__description {
  margin-bottom: var(--mb-2);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 500px;
}

.home__buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: var(--mb-2-5);
  flex-wrap: wrap;
}

.home__stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.home__stat {
  text-align: center;
}

.home__stat-number {
  display: block;
  font-size: var(--h3-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
  font-family: var(--title-font);
}

.home__stat-text {
  font-size: var(--small-font-size);
  color: var(--text-color);
}

.home__img {
  position: relative;
  justify-self: center;
}

.home__img-bg {
  width: 400px;
  height: 500px;
  background: var(--gradient-primary);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

.home__img-main {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 20px;
}

.home__img-overlay {
  position: absolute;
  top: 20px;
  right: 20px;
}

.home__badge {
  background: white;
  padding: 0.75rem 1rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 5px 15px var(--shadow-color);
  font-weight: var(--font-medium);
  font-size: var(--small-font-size);
}

.home__badge i {
  color: var(--primary-color);
}

/* Floating Decorations */
.home__decorations {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
}

.decoration {
  position: absolute;
  font-size: 2rem;
  color: var(--primary-color);
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.decoration--1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.decoration--2 {
  top: 60%;
  right: 10%;
  animation-delay: 2s;
}

.decoration--3 {
  bottom: 20%;
  left: 20%;
  animation-delay: 4s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

/* ===== ABOUT ===== */
.about__container {
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-items: center;
}

.about__description {
  margin-bottom: var(--mb-2);
  line-height: 1.7;
}

.about__credentials {
  margin-bottom: var(--mb-2);
}

.credential {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--mb-1);
  padding: 1rem;
  background: var(--gradient-soft);
  border-radius: 10px;
}

.credential i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.credential h4 {
  font-size: var(--normal-font-size);
  margin-bottom: 0.25rem;
}

.credential span {
  font-size: var(--small-font-size);
  color: var(--text-color);
}

.about__mission {
  padding: 1.5rem;
  background: white;
  border-radius: 15px;
  box-shadow: 0 5px 15px var(--shadow-color);
}

.about__mission h3 {
  margin-bottom: var(--mb-0-75);
  color: var(--primary-color);
}

.about__img {
  position: relative;
  justify-self: center;
}

.about__img-main {
  width: 350px;
  height: 450px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 10px 30px var(--shadow-color);
}

.about__experience {
  position: absolute;
  bottom: 20px;
  left: -20px;
  background: white;
  padding: 1.5rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 15px var(--shadow-color);
}

.about__experience-number {
  display: block;
  font-size: var(--h2-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
  font-family: var(--title-font);
}

.about__experience-text {
  font-size: var(--small-font-size);
  color: var(--text-color);
}

/* ===== E-BOOKS ===== */
.ebooks {
  background: var(--gradient-soft);
}

.ebooks__filter {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: var(--mb-3);
  flex-wrap: wrap;
}

.filter__button {
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  background: white;
  color: var(--text-color);
  border: 2px solid var(--border-color);
  font-weight: var(--font-medium);
  transition: var(--transition);
  cursor: pointer;
}

.filter__button:hover,
.filter__button.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.ebooks__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: var(--mb-3);
}

.ebook__card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 5px 15px var(--shadow-color);
  transition: var(--transition);
  position: relative;
}

.ebook__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.ebook__img {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.ebook__img-main {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.ebook__card:hover .ebook__img-main {
  transform: scale(1.05);
}

.ebook__badge {
  position: absolute;
  top: 15px;
  left: 15px;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: var(--smaller-font-size);
  font-weight: var(--font-medium);
  text-transform: uppercase;
}

.ebook__badge:not(.coming-soon) {
  background: var(--gradient-secondary);
  color: white;
}

.ebook__badge.coming-soon {
  background: var(--text-color-light);
  color: white;
}

.ebook__content {
  padding: 1.5rem;
}

.ebook__category {
  font-size: var(--small-font-size);
  color: var(--primary-color);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.ebook__title {
  font-size: var(--h3-font-size);
  margin: var(--mb-0-5) 0;
  font-family: var(--title-font);
}

.ebook__description {
  color: var(--text-color);
  margin-bottom: var(--mb-1);
  line-height: 1.6;
}

.ebook__details {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--mb-1-5);
  font-size: var(--small-font-size);
  color: var(--text-color);
}

.ebook__price {
  font-size: var(--h3-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
  font-family: var(--title-font);
}

.ebook__button {
  width: 100%;
  justify-content: center;
}

/* Newsletter */
.ebooks__newsletter {
  background: white;
  padding: 3rem 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 5px 15px var(--shadow-color);
  margin-top: var(--mb-3);
}

.newsletter__content h3 {
  margin-bottom: var(--mb-0-5);
  font-family: var(--title-font);
}

.newsletter__content p {
  color: var(--text-color);
  margin-bottom: var(--mb-1-5);
}

.newsletter__form {
  display: flex;
  gap: 1rem;
  max-width: 400px;
  margin: 0 auto;
}

.newsletter__input {
  flex: 1;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 50px;
  outline: none;
  transition: var(--transition);
}

.newsletter__input:focus {
  border-color: var(--primary-color);
}

/* ===== BLOG ===== */
.blog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: var(--mb-2);
}

.tip__card {
  background: white;
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: 0 5px 15px var(--shadow-color);
  transition: var(--transition);
  display: flex;
  gap: 1rem;
}

.tip__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.tip__date {
  text-align: center;
  min-width: 60px;
}

.tip__day {
  display: block;
  font-size: var(--h3-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
  font-family: var(--title-font);
}

.tip__month {
  font-size: var(--small-font-size);
  color: var(--text-color);
  text-transform: uppercase;
}

.tip__content {
  flex: 1;
}

.tip__category {
  font-size: var(--smaller-font-size);
  color: var(--primary-color);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.tip__title {
  font-size: var(--normal-font-size);
  margin: var(--mb-0-25) 0 var(--mb-0-5);
  font-family: var(--title-font);
}

.tip__excerpt {
  color: var(--text-color);
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-0-75);
  line-height: 1.5;
}

.tip__read-more {
  color: var(--primary-color);
  font-weight: var(--font-medium);
  font-size: var(--small-font-size);
  transition: var(--transition);
}

.tip__read-more:hover {
  color: var(--primary-color-alt);
}

.blog__cta {
  text-align: center;
}

/* ===== CONTACT ===== */
.contact__container {
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem;
  align-items: start;
}

.contact__description {
  margin-bottom: var(--mb-2);
  line-height: 1.7;
}

.contact__info {
  display: grid;
  gap: 1rem;
}

.contact__card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--gradient-soft);
  border-radius: 15px;
}

.contact__card i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.contact__card h3 {
  font-size: var(--normal-font-size);
  margin-bottom: 0.25rem;
}

.contact__card span {
  color: var(--text-color);
  font-size: var(--small-font-size);
}

.contact__form {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 5px 15px var(--shadow-color);
}

.contact__form-group {
  margin-bottom: var(--mb-1-5);
}

.contact__input,
.contact__textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  outline: none;
  transition: var(--transition);
  font-family: var(--body-font);
}

.contact__input:focus,
.contact__textarea:focus {
  border-color: var(--primary-color);
}

.contact__textarea {
  resize: vertical;
  min-height: 120px;
}

.contact__button {
  width: 100%;
  justify-content: center;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--title-color);
  color: white;
  padding: 3rem 0 1rem;
}

.footer__content {
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  margin-bottom: var(--mb-2);
}

.footer__logo {
  height: 50px;
  margin-bottom: var(--mb-1);
  filter: brightness(0) invert(1);
}

.footer__description {
  margin-bottom: var(--mb-1-5);
  line-height: 1.6;
  opacity: 0.8;
}

.footer__social {
  display: flex;
  gap: 1rem;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: var(--transition);
}

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

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer__title {
  font-size: var(--normal-font-size);
  margin-bottom: var(--mb-1);
  font-family: var(--title-font);
}

.footer__list {
  display: grid;
  gap: 0.5rem;
}

.footer__link {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
  font-size: var(--small-font-size);
}

.footer__link:hover {
  color: var(--primary-color);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--mb-1-5);
  text-align: center;
}

.footer__copy {
  font-size: var(--small-font-size);
  opacity: 0.8;
  line-height: 1.5;
}

/* ===== SCROLL UP ===== */
.scrollup {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background: var(--gradient-primary);
  opacity: 0.8;
  padding: 0.5rem;
  border-radius: 50%;
  z-index: var(--z-tooltip);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 45px;
  height: 45px;
}

.scrollup:hover {
  background: var(--primary-color-alt);
  opacity: 1;
  transform: translateY(-3px);
}

.scrollup i {
  color: white;
  font-size: 1.2rem;
}

/* Show scroll */
.show-scroll {
  bottom: 5rem;
}

/* ===== BREAKPOINTS ===== */
/* For large devices */
@media screen and (max-width: 992px) {
  .container {
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
  }

  .home__container,
  .about__container,
  .contact__container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .home__img-bg {
    width: 350px;
    height: 400px;
  }

  .about__img-main {
    width: 300px;
    height: 400px;
  }

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

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

/* For medium devices */
@media screen and (max-width: 768px) {
  .nav__menu {
    position: fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2rem 1.5rem 4rem;
    box-shadow: 0 -1px 4px var(--shadow-color);
    border-radius: 1.5rem 1.5rem 0 0;
    transition: var(--transition);
  }

  .nav__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .nav__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: var(--small-font-size);
    color: var(--title-color);
    font-weight: var(--font-medium);
  }

  .nav__link i {
    font-size: 1.2rem;
    margin-bottom: var(--mb-0-25);
  }

  .nav__close {
    position: absolute;
    right: 1.3rem;
    bottom: 0.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
  }

  .nav__close:hover {
    color: var(--primary-color-alt);
  }

  .nav__toggle {
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--title-color);
  }

  .nav__toggle:hover {
    color: var(--primary-color);
  }

  .show-menu {
    bottom: 0;
  }

  .home__buttons {
    flex-direction: column;
    align-items: center;
  }

  .home__stats {
    justify-content: center;
  }

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

  .newsletter__form {
    flex-direction: column;
  }

  .tip__card {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* For small devices */
@media screen and (max-width: 350px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }

  .home__img-bg {
    width: 280px;
    height: 350px;
  }

  .about__img-main {
    width: 250px;
    height: 350px;
  }

  .section {
    padding: 4rem 0 2rem;
  }

  .home {
    padding: 6rem 0 2rem;
  }
}

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

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

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

/* Animation classes */
.animate-fade-up {
  animation: fadeInUp 0.6s ease-out;
}

.animate-fade-left {
  animation: fadeInLeft 0.6s ease-out;
}

.animate-fade-right {
  animation: fadeInRight 0.6s ease-out;
}