/**
 * 4Brand Basic CSS
 * Estilos base, variáveis e componentes reutilizáveis
 */

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

/* ========================================
   CSS VARIABLES (Design Tokens)
   ======================================== */
:root {
    /* Cores oficiais 4Brand - baseadas na logomarca */
    --brand-blue: #2D4A7C;
    --brand-blue-dark: #1E3356;
    --brand-blue-light: #3D5A8C;
    --brand-gold: #D4A84B;
    --brand-gold-light: #E4B85B;
    --brand-gold-dark: #C4983B;
    --brand-gray: #3D3D3D;
    --brand-gray-light: #6B6B6B;
    --neutral-light: #F5F5F5;

    /* Cores semânticas */
    --primary-color: var(--brand-blue);
    --secondary-color: var(--brand-gold);
    --accent-color: var(--brand-blue-light);

    /* Texto */
    --text-primary: #3D3D3D;
    --text-secondary: #6B6B6B;
    --text-light: #8B8B8B;

    /* Backgrounds */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-tertiary: #EBEBEB;

    /* Bordas e sombras */
    --border-color: #D5D5D5;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Bordas arredondadas */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 100px;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   BUTTONS - 4brand-btn-*
   ======================================== */
.fourb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.fourb-btn-primary {
    padding: 14px 28px;
    background: var(--brand-blue);
    color: white;
    font-size: 16px;
    box-shadow: var(--shadow-md);
}

.fourb-btn-primary:hover {
    background: var(--brand-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.fourb-btn-secondary {
    padding: 14px 28px;
    background: transparent;
    color: var(--brand-blue);
    font-size: 16px;
    border: 2px solid var(--border-color);
}

.fourb-btn-secondary:hover {
    border-color: var(--brand-blue);
    background: rgba(45, 74, 124, 0.05);
}

.fourb-btn-gold {
    padding: 14px 28px;
    background: var(--brand-gold);
    color: white;
    font-size: 16px;
    box-shadow: var(--shadow-md);
}

.fourb-btn-gold:hover {
    background: var(--brand-gold-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.fourb-btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.fourb-btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

/* ========================================
   CARDS - fourb-card-*
   ======================================== */
.fourb-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    transition: all 0.3s ease;
}

.fourb-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--brand-gold);
}

/* ========================================
   BADGES - fourb-badge-*
   ======================================== */
.fourb-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.fourb-badge-default {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.fourb-badge-gold {
    background: var(--brand-gold);
    color: white;
}

.fourb-badge-blue {
    background: var(--brand-blue);
    color: white;
}

/* ========================================
   FORM INPUTS - fourb-input-*
   ======================================== */
.fourb-input {
    width: 100%;
    padding: 16px 24px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--bg-primary);
}

.fourb-input:focus {
    outline: none;
    border-color: var(--brand-blue);
    box-shadow: 0 0 0 4px rgba(45, 74, 124, 0.1);
}

.fourb-input-error {
    border-color: #ef4444;
}

/* ========================================
   SECTION TITLES - fourb-title-*
   ======================================== */
.fourb-title {
    font-weight: 800;
    color: var(--brand-blue);
}

.fourb-title-xl {
    font-size: 52px;
    line-height: 1.15;
}

.fourb-title-lg {
    font-size: 36px;
    line-height: 1.2;
}

.fourb-title-md {
    font-size: 24px;
    line-height: 1.3;
}

.fourb-title-sm {
    font-size: 18px;
    line-height: 1.4;
}

/* ========================================
   TEXT UTILITIES - fourb-text-*
   ======================================== */
.fourb-text-primary {
    color: var(--text-primary);
}

.fourb-text-secondary {
    color: var(--text-secondary);
}

.fourb-text-light {
    color: var(--text-light);
}

.fourb-text-blue {
    color: var(--brand-blue);
}

.fourb-text-gold {
    color: var(--brand-gold);
}

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

/* ========================================
   SPACING UTILITIES
   ======================================== */
.fourb-mt-sm { margin-top: 8px; }
.fourb-mt-md { margin-top: 16px; }
.fourb-mt-lg { margin-top: 32px; }
.fourb-mt-xl { margin-top: 64px; }

.fourb-mb-sm { margin-bottom: 8px; }
.fourb-mb-md { margin-bottom: 16px; }
.fourb-mb-lg { margin-bottom: 32px; }
.fourb-mb-xl { margin-bottom: 64px; }

/* ========================================
   ANIMATIONS
   ======================================== */
.fourb-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.fourb-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fourb-fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fourb-spin {
    to { transform: rotate(360deg); }
}

@keyframes fourb-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ========================================
   LOADER
   ======================================== */
.fourb-loader-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

.fourb-loader {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top-color: var(--brand-gold);
    border-radius: 50%;
    animation: fourb-spin 1s ease-in-out infinite;
}

/* ========================================
   WHATSAPP BUTTON
   ======================================== */
.fourb-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 30px;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 100;
    text-decoration: none;
}

.fourb-whatsapp:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
}

/* ========================================
   RESPONSIVE - Mobile First
   ======================================== */
@media (max-width: 768px) {
    .fourb-title-xl {
        font-size: 36px;
    }

    .fourb-title-lg {
        font-size: 28px;
    }

    .fourb-btn-primary,
    .fourb-btn-secondary,
    .fourb-btn-gold {
        padding: 12px 24px;
        font-size: 15px;
    }

    .fourb-whatsapp {
        width: 50px;
        height: 50px;
        font-size: 24px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .fourb-title-xl {
        font-size: 28px;
    }

    .fourb-title-lg {
        font-size: 24px;
    }

    .fourb-card {
        padding: 24px 20px;
    }

    .fourb-badge {
        font-size: 10px;
        padding: 6px 12px;
    }
}