/*
Theme Name: CloudDev
Description: Thème WordPress professionnel pour société de développement d'applications web et mobile. Design moderne et responsive avec toutes les fonctionnalités interactives.
Author: CloudDev Team
Version: 1.0
License: GPL v2 or later
Text Domain: clouddev
*/

/* ===== VARIABLES CSS ===== */
:root {
  /* Colors */
  --primary-color: #2563EB;
  --primary-dark: #1E40AF;
  --secondary-color: #F59E0B;
  --success-color: #10B981;
  --white-color: #FFFFFF;
  --light-gray: #F8FAFC;
  --gray-color: #64748B;
  --dark-gray: #334155;
  --black-color: #0F172A;
  
  /* Typography */
  --body-font: 'Inter', sans-serif;
  --h1-font-size: 3rem;
  --h2-font-size: 2.25rem;
  --h3-font-size: 1.5rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;
  
  /* Spacing */
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --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;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--white-color);
  color: var(--dark-gray);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  color: var(--black-color);
  font-weight: var(--font-semi-bold);
}

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;
}

.section {
  padding: 5rem 0 2rem;
}

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

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

.section__description {
  font-size: 1.125rem;
  color: var(--gray-color);
  max-width: 600px;
  margin: 0 auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: var(--font-medium);
  transition: var(--transition);
  text-align: center;
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: var(--white-color);
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

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

.btn--secondary:hover {
  background: var(--primary-color);
  color: var(--white-color);
  transform: translateY(-2px);
}

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

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

.nav {
  height: 4.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: var(--font-bold);
  font-size: 1.25rem;
  color: var(--primary-color);
}

.nav__logo i {
  font-size: 1.5rem;
}

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

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

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

.nav__link.active-link::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-color);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav__toggle,
.nav__close {
  display: none;
  font-size: 1.25rem;
  color: var(--dark-gray);
  cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
  padding-top: 8rem;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--light-gray) 0%, rgba(37, 99, 235, 0.05) 100%);
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__title {
  font-size: var(--h1-font-size);
  font-weight: var(--font-bold);
  line-height: 1.2;
  margin-bottom: var(--mb-1);
}

.hero__title--accent {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: 1.125rem;
  color: var(--gray-color);
  margin-bottom: var(--mb-2);
  line-height: 1.7;
}

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

.hero__image {
  position: relative;
}

.hero__img {
  width: 100%;
  border-radius: 1rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.hero__stats {
  position: absolute;
  bottom: -2rem;
  right: -2rem;
  background: var(--white-color);
  padding: 1.5rem;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: var(--font-bold);
  color: var(--primary-color);
}

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

/* ===== SERVICES SECTION ===== */
.services {
  background: var(--white-color);
}

.services__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service__card {
  background: var(--white-color);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.service__card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service__icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--mb-1-5);
}

.service__icon i {
  font-size: 2rem;
  color: var(--white-color);
}

.service__title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-1);
}

.service__description {
  color: var(--gray-color);
  margin-bottom: var(--mb-1-5);
  line-height: 1.6;
}

.service__features {
  list-style: none;
}

.service__features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--gray-color);
}

.service__features i {
  color: var(--success-color);
  font-size: 0.875rem;
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
  background: var(--light-gray);
}

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

.portfolio__filter {
  padding: 0.5rem 1.5rem;
  border-radius: 2rem;
  background: var(--white-color);
  color: var(--gray-color);
  border: 1px solid rgba(100, 116, 139, 0.2);
  transition: var(--transition);
  cursor: pointer;
}

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

.portfolio__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.portfolio__item {
  background: var(--white-color);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

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

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

.portfolio__image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.portfolio__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(37, 99, 235, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
}

.portfolio__item:hover .portfolio__overlay {
  opacity: 1;
}

.portfolio__item:hover .portfolio__image img {
  transform: scale(1.1);
}

.portfolio__title {
  color: var(--white-color);
  font-size: var(--h3-font-size);
  margin-bottom: 0.5rem;
  text-align: center;
}

.portfolio__category {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 1rem;
}

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

.portfolio__btn {
  width: 3rem;
  height: 3rem;
  background: var(--white-color);
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.portfolio__btn:hover {
  background: var(--secondary-color);
  color: var(--white-color);
  transform: scale(1.1);
}

/* ===== TECHNOLOGIES SECTION ===== */
.technologies {
  background: var(--white-color);
}

.technologies__container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 2rem;
  align-items: center;
}

.technology__item {
  text-align: center;
}

.technology__image {
  width: 100%;
  max-width: 500px;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.technology__image:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* ===== ABOUT SECTION ===== */
.about {
  background: var(--light-gray);
}

.about__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about__content .section__header {
  text-align: left;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: var(--mb-2) 0;
}

.about__stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--white-color);
  border-radius: 1rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.about__stat-number {
  display: block;
  font-size: 2rem;
  font-weight: var(--font-bold);
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

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

.about__values {
  display: grid;
  gap: 1.5rem;
}

.about__value {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.about__value i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.about__value h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.about__value p {
  color: var(--gray-color);
}

.about__image {
  position: relative;
}

.about__img {
  width: 100%;
  border-radius: 1rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* ===== CONTACT SECTION ===== */
.contact {
  background: var(--white-color);
}

.contact__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

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

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact__item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.contact__item h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.contact__item p {
  color: var(--gray-color);
}

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

.contact__social-link {
  width: 3rem;
  height: 3rem;
  background: var(--light-gray);
  color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.contact__social-link:hover {
  background: var(--primary-color);
  color: var(--white-color);
  transform: translateY(-3px);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact__form-group {
  position: relative;
}

.contact__input {
  width: 100%;
  padding: 1rem;
  border: 2px solid rgba(100, 116, 139, 0.2);
  border-radius: 0.5rem;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  transition: var(--transition);
  background: var(--white-color);
}

.contact__input:focus {
  border-color: var(--primary-color);
  outline: none;
}

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

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

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

.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: var(--font-bold);
  font-size: 1.25rem;
  color: var(--primary-color);
  margin-bottom: var(--mb-1);
}

.footer__logo i {
  font-size: 1.5rem;
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.footer__title {
  font-size: 1.125rem;
  margin-bottom: var(--mb-1);
  color: var(--white-color);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

.footer__info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.5rem;
}

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

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copy {
  color: rgba(255, 255, 255, 0.7);
}

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

.footer__social-link {
  width: 2.5rem;
  height: 2.5rem;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.footer__social-link:hover {
  background: var(--primary-color);
  transform: translateY(-3px);
}

/* ===== SCROLL TO TOP ===== */
.scroll-top {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background: var(--primary-color);
  color: var(--white-color);
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: var(--z-tooltip);
  opacity: 0;
  visibility: hidden;
}

.scroll-top.show-scroll {
  bottom: 3rem;
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* ===== RESPONSIVE DESIGN ===== */
/* Large devices */
@media screen and (max-width: 992px) {
  .container {
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
  }
  
  .hero__container,
  .about__container,
  .contact__container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .hero__stats {
    position: static;
    margin-top: 2rem;
  }
  
  .footer__container {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Medium devices */
@media screen and (max-width: 768px) {
  :root {
    --h1-font-size: 2.25rem;
    --h2-font-size: 1.875rem;
    --h3-font-size: 1.25rem;
  }
  
  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--white-color);
    padding: 6rem 2rem 2rem;
    transition: var(--transition);
  }
  
  .nav__menu.show-menu {
    right: 0;
  }
  
  .nav__list {
    flex-direction: column;
    gap: 2rem;
  }
  
  .nav__link {
    font-size: 1.125rem;
  }
  
  .nav__close,
  .nav__toggle {
    display: block;
  }
  
  .nav__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
  }
  
  .hero {
    padding-top: 6rem;
  }
  
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .services__container {
    grid-template-columns: 1fr;
  }
  
  .portfolio__container {
    grid-template-columns: 1fr;
  }
  
  .technologies__container {
    grid-template-columns: 1fr;
  }
  
  .about__stats {
    grid-template-columns: 1fr;
  }
  
  .footer__container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: 1rem;
  }
}

/* Small devices */
@media screen and (max-width: 576px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }
  
  .hero__stats {
    grid-template-columns: 1fr;
  }
  
  .portfolio__filters {
    justify-content: flex-start;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }
  
  .portfolio__filter {
    white-space: nowrap;
  }
}

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

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

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}