@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap');

/* ========================================
   VARIÁVEIS E CONFIGURAÇÕES GLOBAIS
   ======================================== */
:root {
    --komvos-black: #000000;
    --komvos-gray: #7a7a7a;
    --komvos-white: #ffffff;
    --komvos-light-gray: #f5f5f5;
    --komvos-border: #e0e0e0;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--komvos-light-gray) 0%, var(--komvos-white) 100%);
    color: var(--komvos-black);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   HEADER
   ======================================== */
.header-quiz {
    background: linear-gradient(135deg, var(--komvos-black) 0%, #1a1a1a 100%);
    color: var(--komvos-white);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.header-quiz::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(122, 122, 122, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.logo-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
    position: relative;
    z-index: 1;
    letter-spacing: -0.5px;
}

.logo-title i {
    color: var(--komvos-gray);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: var(--komvos-gray);
    position: relative;
    z-index: 1;
    letter-spacing: 0.5px;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    flex: 1;
    padding: 3rem 0;
}

/* ========================================
   QUIZ CARD
   ======================================== */
.quiz-card {
    background: var(--komvos-white);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--komvos-border);
    transition: var(--transition);
}

.quiz-card:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

/* ========================================
   QUIZ INTRO
   ======================================== */
.quiz-intro {
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--komvos-light-gray);
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--komvos-black) 0%, var(--komvos-gray) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    animation: pulse 2s infinite;
}

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

.icon-wrapper i {
    font-size: 2.5rem;
    color: var(--komvos-white);
}

.quiz-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--komvos-black);
    margin-bottom: 1rem;
}

.quiz-description {
    font-size: 1.1rem;
    color: var(--komvos-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.quiz-info .badge {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    border-radius: 20px;
}

/* ========================================
   SECTION HEADERS
   ======================================== */
.section-header {
    margin-top: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--komvos-black);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--komvos-black);
    margin: 0;
    display: flex;
    align-items: center;
}

.section-title i {
    color: var(--komvos-gray);
}

/* ========================================
   FORM INPUTS
   ======================================== */
.form-label {
    font-weight: 600;
    color: var(--komvos-black);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.input-group-text {
    background-color: var(--komvos-black);
    color: var(--komvos-white);
    border: 1px solid var(--komvos-black);
    font-weight: 500;
}

.form-control {
    border: 2px solid var(--komvos-border);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    border-radius: 0.375rem;
}

.form-control:focus {
    border-color: var(--komvos-black);
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.15);
    outline: none;
}

.form-control.is-valid {
    border-color: var(--success-color);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

/* ========================================
   QUESTION CARDS
   ======================================== */
.question-card {
    background: var(--komvos-light-gray);
    border-radius: 12px;
    padding: 2rem;
    border: 2px solid var(--komvos-border);
    transition: var(--transition);
    position: relative;
}

.question-card:hover {
    border-color: var(--komvos-gray);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.question-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.question-number {
    background: var(--komvos-black);
    color: var(--komvos-white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

.question-text {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--komvos-black);
    margin: 0;
    line-height: 1.5;
    flex: 1;
}

/* ========================================
   OPTIONS CONTAINER
   ======================================== */
.options-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-item {
    background: var(--komvos-white);
    border: 2px solid var(--komvos-border);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.option-item:hover {
    border-color: var(--komvos-gray);
    background: #fafafa;
    transform: translateX(5px);
}

.option-item .form-check-input {
    width: 1.5rem;
    height: 1.5rem;
    margin-top: 0;
    cursor: pointer;
    border: 2px solid var(--komvos-gray);
}

.option-item .form-check-input:checked {
    background-color: var(--komvos-black);
    border-color: var(--komvos-black);
}

.option-item .form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 0, 0, 0.15);
}

.option-item .form-check-label {
    font-size: 1rem;
    color: var(--komvos-black);
    cursor: pointer;
    margin-left: 0.5rem;
    font-weight: 500;
    flex: 1;
}

.option-item:has(.form-check-input:checked) {
    background: var(--komvos-black);
    border-color: var(--komvos-black);
}

.option-item:has(.form-check-input:checked) .form-check-label {
    color: var(--komvos-white);
    font-weight: 600;
}

/* ========================================
   SUBMIT BUTTON
   ======================================== */
.btn-submit {
    background: linear-gradient(135deg, var(--komvos-black) 0%, #2a2a2a 100%);
    color: var(--komvos-white);
    border: none;
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.btn-submit:hover {
    background: linear-gradient(135deg, #2a2a2a 0%, var(--komvos-black) 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    : var(--komvos-white);
}

.btn-submit:active {
    transform: translateY(-1px);
}

.btn-submit i {
    animation: send-animation 2s infinite;
}

@keyframes send-animation {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(5px); }
}

/* ========================================
   ALERTS
   ======================================== */
.alert {
    border-radius: 12px;
    border: none;
    padding: 1.25rem 1.5rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    color: #155724;
}

.alert-danger {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
}

.alert i {
    font-size: 1.2rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer-quiz {
    background: var(--komvos-black);
    color: var(--komvos-white);
    margin-top: auto;
    border-top: 3px solid var(--komvos-gray);
}

.footer-quiz p {
    margin: 0;
}

.footer-quiz strong {
    color: var(--komvos-white);
    font-weight: 700;
}

.footer-quiz .text-muted {
    color: var(--komvos-gray) !important;
}

.footer-logo {
    animation: fadeInUp 0.6s ease-out;
}

.footer-logo-img {
    max-width: 200px;
    height: auto;
    transition: all 0.3s ease;
    filter: brightness(1);
}

.footer-logo-img:hover {
    filter: brightness(1.2);
    transform: scale(1.05);
}

.footer-text {
    font-size: 1rem;
    font-weight: 500;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsividade do logo */
@media (max-width: 576px) {
    .footer-logo-img {
        height: 50px;
        max-width: 150px;
    }

    .footer-text {
        font-size: 0.9rem;
    }
}

@media (max-width: 400px) {
    .footer-logo-img {
        height: 40px;
        max-width: 120px;
    }
}


/* ========================================
   VALIDATION FEEDBACK
   ======================================== */
.invalid-feedback {
    color: var(--danger-color);
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 0.5rem;
    display: none;
}

.invalid-feedback.d-block {
    display: block !important;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Tablets */
@media (max-width: 992px) {
    .quiz-card {
        padding: 2rem;
    }

    .logo-title {
        font-size: 2rem;
    }

    .quiz-title {
        font-size: 1.75rem;
    }

    .question-text {
        font-size: 1.05rem;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .main-content {
        padding: 2rem 0;
    }

    .quiz-card {
        padding: 1.5rem;
        border-radius: 12px;
    }

    .logo-title {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 0.9rem;
    }

    .icon-wrapper {
        width: 60px;
        height: 60px;
    }

    .icon-wrapper i {
        font-size: 2rem;
    }

    .quiz-title {
        font-size: 1.5rem;
    }

    .quiz-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .question-card {
        padding: 1.5rem;
    }

    .question-header {
        flex-direction: column;
        gap: 0.75rem;
    }

    .question-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }

    .question-text {
        font-size: 1rem;
    }

    .option-item {
        padding: 0.875rem 1rem;
    }

    .option-item .form-check-label {
        font-size: 0.95rem;
    }

    .btn-submit {
        padding: 0.875rem 2rem;
        font-size: 1rem;
        width: 100%;
    }

    .quiz-info .badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
        display: block;
        margin: 0.25rem 0 !important;
    }
}

/* Small Mobile */
@media (max-width: 576px) {
    .header-quiz .container {
        padding: 0 1rem;
    }

    .quiz-card {
        padding: 1.25rem;
    }

    .logo-title {
        font-size: 1.5rem;
    }

    .quiz-title {
        font-size: 1.35rem;
    }

    .section-title {
        font-size: 1.15rem;
    }

    .question-text {
        font-size: 0.95rem;
    }

    .option-item .form-check-input {
        width: 1.25rem;
        height: 1.25rem;
    }

    .option-item .form-check-label {
        font-size: 0.9rem;
    }
}

/* ========================================
   ANIMATIONS E LOADING
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-card {
    animation: fadeIn 0.6s ease-out;
}

.question-card {
    animation: fadeIn 0.6s ease-out;
    animation-fill-mode: both;
}

.question-card:nth-child(1) { animation-delay: 0.1s; }
.question-card:nth-child(2) { animation-delay: 0.2s; }
.question-card:nth-child(3) { animation-delay: 0.3s; }
.question-card:nth-child(4) { animation-delay: 0.4s; }
.question-card:nth-child(5) { animation-delay: 0.5s; }

/* ========================================
   SCROLLBAR CUSTOMIZADO
   ======================================== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--komvos-light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--komvos-gray);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--komvos-black);
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
    .header-quiz,
    .footer-quiz,
    .btn-submit {
        display: none;
    }

    .quiz-card {
        box-shadow: none;
        border: 1px solid var(--komvos-black);
    }
}