:root {
    --primary-color: #55692d;
    --primary-color-dark: #445424;
    --primary-color-light: #6b7d3f;
    --light-bg: #eff1ea;
    --correct-green: #28a745;
    --incorrect-red: #dc3545;
    --light-green-bg: #e9f9ec;
    --light-red-bg: #fdeaea;
    --content-max-width: 680px;
    --question-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

button,
.gate-link-button,
.question-nav-btn,
.quiz-action-button {
    touch-action: manipulation;
}

body,
html {
    height: 100%;
    font-family: 'Figtree', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f5f5f5;
}

.hidden {
    display: none !important;
}

.gate-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(135deg, rgba(85, 105, 45, 0.1), rgba(85, 105, 45, 0.05));
    overflow-y: auto;
}

.gate-card {
    width: min(100%, 420px);
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.gate-heading {
    font-size: clamp(20px, 3.2vw, 24px);
    text-align: center;
    color: var(--primary-color);
    font-weight: 700;
    line-height: 1.3;
}

.gate-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
}

.gate-label {
    font-size: 14px;
    font-weight: 600;
    color: #324120;
    text-align: left;
}

.gate-input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #d4d9cc;
    border-radius: 10px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.gate-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(85, 105, 45, 0.18);
}

.otp-inputs {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.gate-input-otp {
    width: 62px;
    padding: 14px 0;
    text-align: center;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: normal;
}

@media (max-width: 480px) {
    .gate-input-otp {
        width: 54px;
        font-size: 20px;
    }
    
    .quiz-question {
        text-align: left !important;
        padding: clamp(16px, 3.5vw, 24px);
    }
    
    .quiz-question-area {
        padding: clamp(24px, 5vh, 40px) clamp(16px, 4vw, 32px);
        min-height: clamp(160px, 32vh, 36vh);
    }
    
    .option {
        padding: 14px 16px;
        font-size: 14px;
        justify-content: center;
        text-align: center;
    }
    
    .option::before {
        display: none;
    }
    
    .option:not(.answered):hover {
        transform: none;
    }
    
    .rationale::before {
        display: none;
    }
}

.gate-button {
    padding: 14px;
    border: none;
    border-radius: 10px;
    background: var(--primary-color);
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.gate-button:hover,
.gate-button:focus {
    background: var(--primary-color-dark);
}

.gate-error {
    font-size: 14px;
    color: var(--incorrect-red);
    text-align: left;
}

#otpError {
    text-align: center;
}

.gate-hint {
    font-size: 14px;
    color: #324120;
    text-align: center;
}

.gate-link-button {
    border: none;
    background: none;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
    padding: 0;
    margin-left: 4px;
}

.gate-link-button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
    text-decoration: none;
}

.quiz-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.question-counter {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.question-counter::before {
    display: none;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
    flex-wrap: nowrap;
}

.question-jump-input {
    width: 64px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: white;
    border-radius: 6px;
    padding: 4px 12px;
    font-family: 'Figtree', sans-serif;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.25;
    text-align: left;
    height: 34px;
}

.question-jump-input::placeholder {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-weight: 600;
}

.question-jump-input:not(:placeholder-shown) {
    text-align: center;
}

.question-jump-input::-webkit-outer-spin-button,
.question-jump-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.question-jump-input {
    -moz-appearance: textfield;
}

.info-icon {
    cursor: pointer;
    font-size: 22px;
    color: white;
}

.question-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
    height: 34px;
}

.question-nav-btn:hover,
.question-nav-btn:focus {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.9);
    outline: none;
}

.question-nav-btn:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.question-nav-btn i {
    font-size: 14px;
}

.mobile-forward-btn {
    display: none;
}

.quiz-question-area {
    position: relative;
    background: linear-gradient(180deg, var(--primary-color) 0%, #4a5d28 100%);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: clamp(32px, 6vh, 56px) clamp(24px, 5vw, 48px);
    text-align: left;
    width: 100%;
    min-height: clamp(180px, 35vh, 40vh);
}

.quiz-question-area::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #ffd54f, #ffeb3b);
    opacity: 0;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.quiz-question-area.attempted::after {
    opacity: 1;
    transform: scaleX(1);
}

.quiz-question {
    font-size: clamp(17px, 2.2vw, 21px);
    font-weight: 600;
    width: min(100%, var(--content-max-width));
    max-width: min(var(--content-max-width), 92vw);
    margin: 0 auto;
    line-height: 1.55;
    letter-spacing: -0.01em;
    text-align: center;
    animation: questionFadeIn var(--question-transition) ease-out;
}

@media (max-width: 768px) {
    .quiz-question {
        text-align: left;
    }
}

@keyframes questionFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-options-area {
    flex: 1;
    background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: clamp(24px, 3vw, 32px) 20px;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    margin-top: 20px;
    width: 100%;
}

.option {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 16px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #ffffff;
    text-align: left;
    font-size: 15px;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.option::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: transparent;
    transition: background 0.2s ease;
}

.option.answered {
    pointer-events: none;
}

.option:not(.answered):hover {
    border-color: var(--primary-color);
    background: #f8f9f5;
}

.option:not(.answered):hover::before {
    background: var(--primary-color);
}

.correct {
    border-color: var(--correct-green) !important;
    background: var(--light-green-bg) !important;
    font-weight: 600;
    animation: correctPulse 0.5s ease-out;
}

.correct::before {
    background: var(--correct-green) !important;
}

.incorrect {
    border-color: var(--incorrect-red) !important;
    background: var(--light-red-bg) !important;
    pointer-events: auto !important;
    animation: incorrectShake 0.3s ease-out;
}

.incorrect::before {
    background: var(--incorrect-red) !important;
}

@keyframes correctPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes incorrectShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

.rationale {
    display: none;
    padding: 18px 20px;
    background: linear-gradient(135deg, #f0f4ea 0%, #e8ede0 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: 10px;
    font-size: 14px;
    line-height: 1.6;
    margin: 0 auto 20px;
    overflow-wrap: break-word;
    box-shadow: 0 2px 8px rgba(85, 105, 45, 0.08);
    position: relative;
}

.rationale.show {
    display: block;
}

.next-btn {
    display: none;
    padding: 14px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.next-btn:hover {
    background: var(--primary-color-dark);
}

.next-btn.show {
    display: block;
}

.option,
.rationale,
.next-btn {
    width: 100%;
    max-width: var(--content-max-width);
    margin-left: auto;
    margin-right: auto;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-content {
    background: white;
    padding: 32px 25px 25px;
    border-radius: 12px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

@media (max-width: 480px) {
    .modal-content {
        padding: 24px 20px 20px;
        border-radius: 10px;
        max-width: 320px;
    }

    .modal-header {
        padding-left: 24px;
        padding-right: 24px;
    }

    .modal-header h2 {
        font-size: 20px;
    }
}

.modal-header {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    padding-right: 44px;
    padding-left: 44px;
}

.modal-header h2 {
    color: #000;
    font-size: 22px;
    margin: 0;
    text-align: center;
    width: 100%;
}

.instruction-box {
    background: #f8f9f5;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 15px;
    border-left: 4px solid var(--primary-color);
}

.instruction-box h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: #000;
}

.instruction-box p {
    font-size: 14px;
    line-height: 1.5;
}

.info-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
    border-radius: 16px;
    background: linear-gradient(140deg, rgba(85, 105, 45, 0.95), rgba(33, 53, 18, 0.98));
    color: #f4f8ed;
    overflow: hidden;
    box-shadow: 0 24px 40px rgba(22, 38, 12, 0.22);
    margin-bottom: 18px;
    isolation: isolate;
}

.info-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(150deg, rgba(255, 255, 255, 0.14), transparent 55%);
    z-index: 0;
}

.info-card::after {
    content: "";
    position: absolute;
    width: 190px;
    height: 190px;
    border-radius: 50%;
    top: -80px;
    right: -30px;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.22), transparent 65%);
    opacity: 0.8;
    z-index: 0;
}

.info-card > * {
    position: relative;
    z-index: 1;
}

.account-email-label {
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
    margin: 0;
}

.account-email-value {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    letter-spacing: 0.02em;
    word-break: break-word;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.18);
    margin: 0;
}

.membership-card {
    gap: 18px;
}

.account-email-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.membership-card-summary {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.membership-card-label {
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.membership-card-value {
    font-size: 22px;
    font-weight: 700;
    color: #ffffff;
    margin: 0;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.04em;
}

.membership-card-description {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.55;
    margin: 0;
}

.membership-card.membership-card--expired {
    background: linear-gradient(140deg, rgba(193, 53, 53, 0.96), rgba(119, 18, 18, 0.98));
    box-shadow: 0 24px 42px rgba(119, 18, 18, 0.28);
}

.membership-card.membership-card--expired::after {
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.2), transparent 70%);
}

.membership-card.membership-card--expired .membership-card-label,
.membership-card.membership-card--expired .membership-card-value,
.membership-card.membership-card--expired .membership-card-description {
    color: #ffffff;
}

.subscription-box {
    background: #fdf7e6;
    border-radius: 10px;
    border-left: 4px solid #f4c542;
    padding: 16px;
    margin-bottom: 16px;
    font-size: 14px;
    line-height: 1.5;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.subscription-status {
    font-weight: 600;
    color: #000;
}

.subscription-link {
    font-weight: 600;
    text-decoration: underline;
    color: var(--primary-color);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.manage-subscription {
    font-weight: 700;
    text-decoration: underline;
}

.logout-btn {
    width: 100%;
    padding: 12px;
    margin: 16px 0 18px;
    background: var(--primary-color);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.logout-btn:hover,
.logout-btn:focus {
    background: var(--primary-color-dark);
    outline: none;
    transform: translateY(-1px);
}

.modal-close {
    position: absolute;
    top: 50%;
    right: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: #4a4a4a;
    font-size: 18px;
    cursor: pointer;
    transform: translateY(-50%);
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.modal-close:hover,
.modal-close:focus {
    background: rgba(0, 0, 0, 0.05);
    color: #000;
    outline: none;
    transform: translateY(-50%) scale(1.05);
}

.ios-share-icon {
    width: 20px;
    vertical-align: middle;
}

@media (max-width: 767px) {
    .quiz-header {
        gap: 10px;
    }

    .question-counter {
        flex: 1 1 auto;
    }

    .header-controls {
        gap: 12px;
        justify-content: flex-end;
    }

    .question-nav-btn {
        height: 32px;
        padding: 4px 8px;
    }

    .question-nav-label {
        display: none;
    }

    .quiz-question {
        font-size: 20px;
        padding: clamp(20px, 7vw, 36px);
    }

    .quiz-question-area {
        padding: clamp(36px, 12vh, 54px) clamp(24px, 10vw, 44px);
    }

    .question-jump-input {
        height: 32px;
        padding: 4px 10px;
    }

    .mobile-forward-btn {
        display: inline-flex;
    }

    #forwardBtn {
        display: none;
    }

    .quiz-options-area {
        flex: 1 1 auto;
        min-height: 0;
        overflow-y: auto;
    }
}

@media (max-width: 600px) {
    .quiz-question-area {
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    .quiz-question {
        width: min(100%, var(--content-max-width));
        max-width: min(var(--content-max-width), 90vw);
        margin: 0 auto;
        padding: clamp(20px, 6vw, 28px) 0;
        text-align: center;
        font-size: clamp(17px, 4.6vw, 19px);
        line-height: 1.45;
        letter-spacing: -0.01em;
    }

    .question-jump-input {
        width: 58px;
        padding: 4px 10px;
        height: 32px;
        font-size: 12px;
    }
}

/* Analytics Section Styles */
.analytics-section {
    background: #f8f9f5;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    border: 1px solid #e8f0e0;
}

.analytics-section h3 {
    color: #000;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    text-align: center;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 12px;
}

.analytics-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: #ffffff;
    border-radius: 10px;
    border: 1px solid #e0e8d8;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.analytics-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.analytics-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-color-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.analytics-content {
    text-align: center;
}

.analytics-value {
    font-size: 20px;
    font-weight: 700;
    color: #000;
    line-height: 1.2;
    margin-bottom: 2px;
}

.analytics-label {
    font-size: 12px;
    color: #666;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.analytics-updated {
    font-size: 12px;
    color: #888;
    text-align: center;
    margin: 0;
    font-style: italic;
}

.analytics-updated span {
    font-weight: 500;
}

@media (max-width: 480px) {
    .analytics-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .analytics-item {
        padding: 14px;
        flex-direction: row;
        gap: 12px;
    }

    .analytics-icon {
        width: 36px;
        height: 36px;
        flex-shrink: 0;
    }

    .analytics-content {
        text-align: left;
        flex: 1;
    }

    .analytics-value {
        font-size: 18px;
    }

    .analytics-label {
        font-size: 11px;
    }
}