/* =========================================================
   STYLE PRINCIPAL — BTS SIO | Lycée De La Salle (Rennes)
   Thème jaune & noir harmonisé
   ========================================================= */

/* ===================== VARIABLES ===================== */
:root {
  --color-primary: #FFFF00;
  --color-primary-foreground: #000000;

  --color-background: #ffffff;
  --color-surface: #f5f5f5;
  --color-foreground: #000000;
  --color-muted: #333333;

  --color-border: rgba(0, 0, 0, 0.15);

  --font-base: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-base: 15px; 

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 15px;

  --shadow-sm: 0 3px 5px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

/* ===================== BASE ===================== */
html {
  height: 100%;
  font-size: var(--font-size-base);
}

body {
  min-height: 100%;
  font-family: var(--font-base);
  background: linear-gradient(to bottom, var(--color-background), var(--color-surface));
  background-attachment: fixed;
  color: var(--color-foreground);
  padding: 20px 0;
}

/* ===================== PAGE ===================== */
div#page {
  width: 800px; 
  max-width: 95%;
  margin: 0 auto;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ===================== HEADER ===================== */
div#header-menu {
  height: 50px;
  background: var(--color-primary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

div#header-logos {
  padding: 20px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

img#logo-gauche {
  width: 275px;  
  height: auto;   
  object-fit: contain;
}


img#logo-droite {
  width: 400px;
  height: auto;
  object-fit: contain;
}

/* ===================== MENU ===================== */
ul#menu-horizontal {
  list-style: none;
  display: flex;
  height: 50px;
  justify-content: flex-start;
}

ul#menu-horizontal li {
  flex: none;
}

ul#menu-horizontal li a {
  display: block;
  height: 100%;
  line-height: 50px;
  font-size: 1em; 
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  color: var(--color-primary-foreground);
  padding: 0 20px;
  border-right: 2px solid #ffffff;
  transition: all 0.3s ease;
}

ul#menu-horizontal li a:hover {
  background: var(--color-foreground);
  color: var(--color-primary);
}

ul#menu-horizontal li:last-child a {
  border-right: none;
}

/* ===================== CONTENU ===================== */
div#content {
  padding: 30px 50px;
  min-height: 400px;
}div#content h2 {
  display: flex;
  align-items: center;
  gap: 15px;
  margin: 30px 0 20px;
  padding: 15px 20px;
  font-size: 1.4em;
  font-weight: var(--font-weight-bold);
  color: var(--color-foreground);
  border-left: 5px solid var(--color-primary);
  border-top: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

div#content h2:hover {
  background-color: #fffef0;
  transform: translateX(5px);
}
.h2-icon {
  width: 28px;        
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;     /* empêche l’image d’étirer le titre */
}


div#content h3 {
  margin: 20px 0 15px 30px;
  padding-left: 15px;
  font-size: 1.2em; 
  border-left: 4px solid var(--color-primary);
}

div#content p {
  margin: 15px 0;
  font-size: 1em; 
  line-height: 1.6em;
  color: var(--color-muted);
  text-align: justify;
}

/* ===================== BOUTONS ===================== */
a.gros-bouton-menu,
a.petit-bouton-menu {
  display: block;
  margin: 20px auto;
  text-align: center;
  text-decoration: none;
  color: var(--color-foreground);
  transition: all 0.3s ease;
}

a.gros-bouton-menu {
  width: 400px;
  padding: 15px 20px;
  font-size: 1.2em; 
  font-weight: var(--font-weight-bold);
  background: linear-gradient(to bottom, #ffffff, #f0f0f0);
  border: 2px solid #e0e0e0;
  border-left: 6px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

a.gros-bouton-menu:hover {
  background: var(--color-primary);
  border-left-color: var(--color-foreground);
  transform: translateX(8px) scale(1.02);
}

a.petit-bouton-menu {
  width: 500px;
  padding: 12px 20px;
  font-size: 1em; 
  background: linear-gradient(to bottom, #ffffff, #f5f5f5);
  border: 2px solid #e0e0e0;
  border-left: 5px solid var(--color-primary);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

a.petit-bouton-menu:hover {
  background: var(--color-primary);
  transform: translateX(6px);
}

/* ===================== FOOTER ===================== */
div#footer {
  padding: 15px 20px;
  background: var(--color-primary);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

div#footer p {
  text-align: center;
  font-size: 1.1em; 
  font-weight: var(--font-weight-bold);
}

/* ===================== IMAGES ===================== */
img#competences {
  display: block;
  margin: 20px auto;
  max-width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* ===================== RESPONSIVE ===================== */
@media screen and (max-width: 900px) {
  div#page {
    width: 100%;
    border-radius: 0;
  }

  div#content {
    padding: 20px 30px;
  }

  div#header-logos {
    flex-direction: column;
    text-align: center;
  }

  a.gros-bouton-menu,
  a.petit-bouton-menu {
    width: 100%;
  }
}
#pages p,
#pages ul {
    margin-left: 0;     /* pas de décalage à gauche */
    padding-left: 0;    /* pas de padding interne */
}

#pages ul {
    list-style-position: inside; /* les puces sont alignées avec le texte */
}

#pages h3 {
    margin-left: 0;
    padding-left: 0;
}
.bloc {
    background: #fefefe;               /* fond blanc léger */
    border: 1px solid rgba(0,0,0,0.1); /* bordure douce */
    border-left: 6px solid var(--color-primary); /* barre de couleur à gauche */
    padding: 20px 25px;
    margin: 20px 0;                     /* espace vertical entre les blocs */
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.bloc:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.bloc h3 {
    color: #0056b3; /* bleu pour les titres */
    margin-top: 0;
    margin-bottom: 10px;
}

.bloc p, .bloc ul {
    margin: 10px 0;
    color: var(--color-muted);
    line-height: 1.6em;
}

.bloc ul {
    padding-left: 20px; /* indentation des puces */
}
/* ===================== FORMULAIRE CONTACT ===================== */

#content form {
  max-width: 550px;
  margin: 30px auto;
}

#content form p {
  margin: 18px 0;
}

#content form label {
  display: block;
  font-weight: bold;
  margin-bottom: 6px;
  color: #000;
}

#content form input[type="text"],
#content form input[type="email"],
#content form textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid rgba(0,0,0,0.3);
  border-radius: 6px;
  font-size: 1em;
}

#content form textarea {
  min-height: 120px;
  resize: vertical;
}

#content form input:focus,
#content form textarea:focus {
  outline: none;
  border: 1px solid #000;
  box-shadow: 0 0 0 2px rgba(255,255,0,0.4);
}

#content form input[type="submit"] {
  cursor: pointer;
  border: none;
}

/* Message retour */
#content .message-confirmation {
  background: #fffbe6;
  border-left: 6px solid #ffff00;
  padding: 15px;
  margin: 20px 0;
  font-weight: bold;
}
/* ===================== BOUTON ENVOYER FORMULAIRE ===================== */
.btn-envoyer {
  display: block;
  margin: 30px auto;
  padding: 14px 40px;
  font-size: 1.1em;
  font-weight: 700;
  background: linear-gradient(to bottom, #ffffff, #f0f0f0);
  border: 2px solid #e0e0e0;
  border-left: 6px solid var(--color-primary);
  border-radius: 10px;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.btn-envoyer:hover {
  background: var(--color-primary);
  transform: translateX(6px) scale(1.03);
}

.btn-envoyer:active {
  transform: scale(0.98);
}

/* ===================== BOUTON RETOUR EN HAUT ===================== */
#btnTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary);
  color: black;
  font-size: 22px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  display: none;
  transition: all 0.3s ease;
  z-index: 999;
}

#btnTop:hover {
  transform: scale(1.15);
  background: black;
  color: var(--color-primary);
}

.admis {
  border-left: 6px solid #2ecc71;
  background: #f0fff6;
}

.refuse {
  border-left: 6px solid #e74c3c;
  background: #fff0f0;
}