/**
 * INSTITUCIÓN EDUCATIVA EL CASTILLO
 * Estilos Globales - style.css
 * Variables CSS, Reset y Estilos Base
 */

/* ========== CSS VARIABLES ========== */
:root {
    /* Paleta de colores */
    --charcoal: #28424a;
    --office-green: #007d00;
    --celadon: #88d498;
    --baby-powder: #fffffc;
    --parchment: #f3e9d2;

    /* Variables principales */
    --primary-color: var(--office-green);
    --secondary-color: var(--celadon);
    --accent-color: #66c47a;
    --dark-color: var(--charcoal);
    --text-muted: #5a6c74;

    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(40, 66, 74, 0.08);
    --shadow-md: 0 4px 8px rgba(40, 66, 74, 0.12);
    --shadow-lg: 0 10px 30px rgba(40, 66, 74, 0.15);

    /* Otros */
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;

    /* Light mode colors */
    --bg-primary: var(--baby-powder);
    --bg-secondary: var(--parchment);
    --text-primary: var(--charcoal);
    --text-secondary: #5a6c74;
    --navbar-bg: var(--baby-powder);
    --card-bg: var(--baby-powder);
    --border-color: rgba(136, 212, 152, 0.2);
}

/* Dark Mode Variables */
.dark-mode {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --text-primary: #e6edf3;
    --text-secondary: #7d8590;
    --navbar-bg: #0d1117;
    --card-bg: #161b22;
    --border-color: rgba(136, 212, 152, 0.15);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.6);
    --primary-color: #3fb950;
    --secondary-color: #238636;
    --accent-color: #2ea043;
}

/* Light Mode Explicit */
.light-mode {
    --bg-primary: #fffffc;
    --bg-secondary: #f3e9d2;
    --text-primary: #28424a;
    --text-secondary: #5a6c74;
    --navbar-bg: #fffffc;
    --card-bg: #fffffc;
    --border-color: rgba(136, 212, 152, 0.2);
    --shadow-sm: 0 2px 4px rgba(40, 66, 74, 0.08);
    --shadow-md: 0 4px 8px rgba(40, 66, 74, 0.12);
    --shadow-lg: 0 10px 30px rgba(40, 66, 74, 0.15);
    --primary-color: #007d00;
    --secondary-color: #88d498;
    --accent-color: #66c47a;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    background-color: var(--bg-primary);
    transition: var(--transition);
    overflow-x: hidden;
    padding-top: 80px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

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

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

/* ========== UTILIDADES ========== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
}