/* ============= WELCOME PAGE ============= */
.welcome-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    height: 100vh;
    width: 100%;
    background-color: #ffffff;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 9999;
}

.welcome-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.welcome-container {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.welcome-content {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    height: 100%;
    justify-content: center;
    align-items: center;
    padding: 0 2rem;
}

.welcome-header {
    margin-bottom: 3rem;
    animation: fadeInWelcome 1s ease-out forwards;
}

.welcome-tutorial {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    animation: fadeInQuestion 1s ease-out forwards 0.2s both;
}

.welcome-message {
    margin-bottom: 1rem;
}

.welcome-message p {
    font-size: 1.8rem;
    font-weight: 400;
    color: #6b7280;
    line-height: 1.6;
    letter-spacing: 0;
    margin: 0;
}

.welcome-phase {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.phase-1 {
    animation: fadeInWelcome 1s ease-out forwards;
}

.phase-1.fade-out {
    animation: fadeOutWelcome 1s ease-out forwards;
}

.phase-2 {
    opacity: 0;
    pointer-events: none;
}

.phase-2.fade-in {
    opacity: 1;
    pointer-events: auto;
    animation: fadeInQuestion 1s ease-out forwards;
}

.welcome-title {
    font-size: 6rem;
    font-weight: 200;
    letter-spacing: -3px;
    color: var(--dark-color);
    margin: 0;
    line-height: 1;
}

.welcome-question {
    width: 100%;
}

.welcome-question p {
    font-size: 3.5rem;
    font-weight: 300;
    color: #6b7280;
    line-height: 1.3;
    letter-spacing: -1px;
    margin: 0 0 3rem 0;
}

.welcome-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
}

.welcome-btn {
    padding: 1.2rem 2.5rem;
    border: 2px solid var(--border-color);
    background: white;
    border-radius: var(--radius-lg);
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 180px;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.welcome-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.welcome-btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-label {
    position: relative;
    z-index: 1;
}

.btn-icon {
    position: relative;
    z-index: 1;
    font-size: 1.2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.welcome-btn-yes {
    border-color: var(--success-color);
    color: var(--success-color);
}

.welcome-btn-yes:hover {
    border-color: var(--success-color);
    background: rgba(16, 185, 129, 0.05);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.15);
}

.welcome-btn-yes:hover .btn-icon {
    opacity: 1;
}

.welcome-btn-no {
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.welcome-btn-no:hover {
    border-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.05);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.15);
}

.welcome-btn-no:hover .btn-icon {
    opacity: 1;
}

.welcome-btn-skip {
    border-color: var(--primary-color);
    color: var(--primary-color);
    padding: 1.5rem 3.5rem;
    font-size: 1.4rem;
}

.welcome-btn-skip:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15);
}

.welcome-timer {
    margin-top: 2rem;
    width: 100%;
    max-width: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.timer-bar {
    width: 100%;
    height: 6px;
    background: #e5e7eb;
    border-radius: 3px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.timer-bar {
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    animation: slideWidth 10s linear forwards;
}

.timer-text {
    font-size: 1rem;
    color: #9ca3af;
    font-weight: 500;
    letter-spacing: 1px;
}

#timerCount {
    font-weight: 700;
    color: #6366f1;
    font-size: 1.2rem;
}

.welcome-btn:active {
    transform: translateY(-2px);
}

@keyframes slideWidth {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

/* ============= ANIMATIONS ============= */
@keyframes fadeInWelcome {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeOutWelcome {
    from {
        opacity: 1;
        transform: scale(1);
    }

    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

@keyframes fadeInQuestion {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============= RESPONSIVE ============= */
@media (max-width: 1024px) {
    .welcome-title {
        font-size: 4.5rem;
    }

    .welcome-message p {
        font-size: 1.5rem;
    }

    .welcome-btn {
        min-width: 160px;
        padding: 1.2rem 3rem;
        font-size: 1.2rem;
    }

    .welcome-btn-skip {
        padding: 1.3rem 3rem;
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    .welcome-page {
        min-height: 100vh;
    }

    .welcome-container {
        padding: 1.5rem;
    }

    .welcome-header {
        margin-bottom: 2rem;
    }

    .welcome-title {
        font-size: 3rem;
    }

    .welcome-message p {
        font-size: 1.3rem;
        margin-bottom: 1.5rem;
    }

    .welcome-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .welcome-btn {
        width: 100%;
        min-width: unset;
        min-height: 60px;
        padding: 1.2rem 2rem;
    }

    .welcome-btn-skip {
        width: 100%;
        padding: 1.2rem 2rem;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .welcome-title {
        font-size: 2.2rem;
    }

    .welcome-header {
        margin-bottom: 1.5rem;
    }

    .welcome-message p {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .welcome-btn {
        padding: 1rem 1.5rem;
        font-size: 1rem;
        min-height: 50px;
        min-width: 120px;
    }

    .welcome-btn-skip {
        padding: 1rem 1.5rem;
        font-size: 1rem;
        width: auto;
    }

    .welcome-buttons {
        gap: 0.75rem;
    }
}